Cameron (NYSE:CAM) is a leading provider of flow equipment products, systems and services to worldwide oil, gas and process industries. Leveraging its global manufacturing, sales and service network, Cameron's 11 operating divisions work with drilling contractors, oil & gas producers, pipeline operators, refiners and other process owners to control, direct, adjust, process, measure and compress pressures and flows. The company generates annual bookings in excess of $5 billion with more than 16,000 employees at more than 250 locations around the world. Cameron is headquartered in Houston, Texas and derives approximately 2/3 of its business from outside the United States.

BARTON Differential Pressure Units (DPUs) serve as actuating units for a wide variety of instruments. All models feature rupture-proof bellows.

Each DPU consists of a Bellows Unit Assembly (BUA) and removable pressure housings. Within the BUA, flexible bellows are secured to a centerplate. In dual-bellows models, the movable bellows are rigidly connected by a dual valve stem that passes through the centerplate. Valve seats, in the centerplate passage, form a seal with the valves. Contacting the valve stem in the centerplate is a drive arm pivoted on the end of a sealed torque tube. The bellows is filled with a clean, noncorrosive, low-freezing point liquid. A range spring assembly provides tension against applied pressures. In operation, pressure is applied to both sides of the bellows. Any difference in pressure causes the bellows to move until the spring effect (range springs) balances out the force. The linear motion of the bellows (proportional to the DP) is transmitted as a rotary motion through the torque tube. In dual-bellows units, if the bellows are subjected to a DP greater than the unit’s DP rating, a valve closes and “traps” the fill liquid in the bellows — fully supporting the bellows and preventing rupture. Since opposing valves are used, full protection is provided in either direction.

BARTON chart recorders are the industry standard for accurate, reliable measurement and recording of pressure, differential pressure, and temperature in a wide variety of applications. In addition, DP models utilize rupture-proof bellows DPU as the actuating unit — with features like overrange protection and pulsation dampening (on some models).

The 202E is a 12-inch chart recorder that has been widely used in gas transmission and distribution fields – accurate calibration, even under extreme variations in static pressure and ambient temperatures. The 202E is available in 1 to 4 pen configurations (DP+3 additional pens). The additional pens can be used to record temperature and supplemental pressure data. The unit is actuated by a BARTON Model 199 DPU, with standard and NACE units available (up to 6,000 PSI/414 bar SWP) — see DPU bulletin #21700 for details. Static pressure and temperature pens are actuated by precision wound elements.

BARTON chart recorders are the industry standard for accurate, reliable measurement and recording of pressure, differential pressure, and temperature in a wide variety of applications. In addition, DP models utilize rupture-proof bellows DPU as the actuating unit — with features like overrange protection and pulsation dampening (on some models).

The 242E is a 12-inch chart Temperature and Pressure Recorder- Receiver designed for general pressure applications. When functioning as a recorder-receiver, it uses a bellows-type element for pneumatic transmitter or controller input.

BARTON chart recorders are the industry standard for accurate, reliable measurement and recording of pressure, differential pressure, and temperature in a wide variety of applications. In addition, DP models utilize Barton’s rupture-proof bellows DPU as the actuating unit — with features like overrange protection and pulsation dampening (on some models).

The J8A is a compact 8-inch chart temperature and pressure recorder designed for general pressure applications. Available as a single or dual pen unit, it can use any combination of pressure measuring helical elements or temperature measuring thermal systems.

BARTON indicators are available for a variety of safe working pressures and differential pressure ranges. They are widely used for the measurement of differential pressure, flowrate, and liquid level applications.

General Features
• Barton DPU Sensor
• NEMA-4/IP65 cases
• Wide Selection of DP Ranges (Including absolute, zero-center, and split ranges)
• Pulsation Dampening

BARTON DP switches are available in a wide variety of safe working pressures and differential pressure ranges. Widely used in applications that require measurement of differential pressure, flowrate, and liquid level, they provide accuracy, narrow deadband, and repeatability of switch action at set point.

General Features
• SWP to 10,000 PSI (689 bar)
• Barton DPU Sensor/Actuator
• NEMA-4/IP65 and Explosionproof Cases
• Wide Selection of DP Ranges (including absolute, zero-center, and split ranges)
• Pulsation Dampening (selected models)

All BARTON Pneumatic Transmitters & Controllersare designed to meet the most stringent and demanding requirements for Oil & Gas Production, U.S. Navy Shipboard, and Process Plant applications.

• Actuated by BARTON 199 DPU
• Rugged, Weatherproof, Non-corrosive Case
• Continuous Purging (pilot valve and nozzle exhaust inside)
• Operation Span Continuously Adjustable (100 - 20%)
• Adjustable Suppression (up to 80% of range)
• Large Valve Relays (no need for secondary booster)
• Span Continuously Adjustable (down to 20% of range)
• Air Consumption (at balance condition) 0.05 scfm ma

NuFlo developed its first flowmeter for oilfield applications in 1957. The meter incorporated a tungsten-carbide shaft and bearing to withstand the rugged conditions of the oilfield environment. Over the years, this flowmeter has built an unsurpassed reputation for withstanding severe punishment while maintaining operational and measurement integrity.

NuFlo turbine flowmeters indicate flow rate and measure total throughput of a liquid line. As liquid flows through the meter and over the rotor, the rotor turns at a speed that is directly proportional to the flow rate. A magnetic pickup senses the rotor blades as they pass and generates an electrical (sine wave) signal. These electrical pulses are then transmitted to the flow measurement readout equipment.

BARTON 7000 series turbines are designed for a broad range of precise liquid measurement applications. Based on 35 years of turbine manufacturing, this built-to-order series features a range of sizes, materials, bearing systems and options

General Features
• Linearity — Better than ± 1% of reading over linear flow range of fractional size meters. Better than ± 0.25% of reading over linear flow range of meters 1’’ size and above.

• Repeatability — ± 0.02% of reading.

• Compact and efficient — Compared to other metering techniques, Barton turbine meters are able to handle a larger flowrate in a smaller meter and with a lower pressure drop. With the use of reduced diameter block valves and meter runs,substantial installed cost savings are achieved.

• Self-flushing design — longer sustained accuracy.

• High frequency digital output — easy interface with digital equipment

• Wide rangeability — eliminates parallel runs and the cost of extra valves and strainers.

• Symmetrical Bi-directional Design — Ideal for reverse flow applications,accuracy and flow capacities are the same in either direction. Electronic options provide instantaneous flow direction sensing.

• Wide Temperature & Pressure Ranges — measurement options for hot hydrocarbon to cryogenic applications.

• High Quality Bearings — wear resistant tungsten carbide sleeve bearings standard on 71xx/73xx meters and self-lubricating, precision stainless steel bearings (dry lubricant impregnated ball separators on 72xx meters).

• Low mass design — The small lightweight rotor hubs both ensure fast response to process flow changes and reduced bearing load and wear. On meters above two inch (50 mm) the hub is either hollow or indented to further reduce the rotating mass.

• Low Maintenance — True fluid thrust design hydrodynamically balances the rotor during operation. This unique design eliminates the need for mechanical thrust leveling. This low friction design both improves metering linearity and reduces wear and maintenance.

• Built-to-order series — features a range of sizes, materials, bearing systems,and options.

BARTON 7400 Series Precision Turbine Meters are designed for gas service in a wide range of industrial,commercial, pipeline,and aerospace applications. Because the output from the pickup coil is digital, Barton 7000 Series meters are a perfect match for electronic output devices — no A/D conversion required. The rotor response is in milliseconds, providing precise metering in rapidly changing flow pattern applications.

General Features
• High accuracy — custody transfer quality measurements with ±0.2% of flowrate repeatability and a single K-factor linearity of better than ±1.0% of reading over flow range.

• Wide application — metering of gases from oxygen to ethylene for naturalgas production, gas
transmission, petrochemical, transport, aerospace, and petroleum production/refining industries.

• Responsive — a major advantage over other primary flow devices. Rotor response in milliseconds
provides precision even in rapidly changing environments.

• High frequency digital output — easy interface with digital equipment.

• Wide rangeability — depending on the flowing gas density,the meter inherently often provides for min to max flow range of more than a 10:1 ratio. Rangeability is extended with the addition of optional linearizing electronics.

• Symmetrical bi-directional design — ideal for reverse flow applications, accuracy and flow capacities are the same in either direction. Electronic options provide instantaneous flow direction sensing.

• Wide temperature and pressure ranges — flexible measurement options.

• Compact and efficient — compared to other Precision metering techniques, Barton turbine meters are able to handle a larger flowrate in a smaller meter and at a lower pressure drop. With the use of reduced diameter block valves and meter runs, substantial installation cost savings are achieved.

• Low maintenance — sealed self-lubricating bearings feature a maintenance free 10-year design life.

• Integral pressure tap — precisely positioned to accommodate pressure measurement at the turbine meter.

The MC-II Plus WP Flow Analyzer is a weatherproof instrument which provides a continuous display of instantaneous flow rate and accumulated total volume of liquid or gas based on a turbine flow meter input signal. It combines ease-of-use and functionality for a truly user friendly flow analyzer.

The liquid crystal display simultaneously displays seven-digit totals and six-digit flow rates, as well as a selection of commonly used engineering units for rate and volume. The calibration is implemented by entering the calibration factor of the flow meter and selecting the desired units of measurement. It automatically calculates its own divisor. When used with a gas turbine meter, you input gas calculation parameters and the flow analyzer self-calculates the calibration factor for gas in standard cubic feet. The unique combination of inputs and outputs allows flexibility of use in the field. The MC-II Plus WP Flow Analyzer connects to a turbine meter using quick disconnects. It takes the turbine meter signal directly in, without the use of preamplifiers. A remote reset input allows the volume to be cleared via a remote computer. The user can select either a 4- 20 mA output or an amplified flow meter frequency output to feed to remote equipment.

The MC-II Plus Portable Rate Meter is a portable readout instrument which provides a continuous display of flow rate and total volume of liquids and gases. Since it uses the same advanced circuitry of the rest of the MC-II Plus family of instruments, it shares many of the same features.

Being portable, it can be transported to multiple field locations to verify proper operation of turbine flow meters of any size. When connected to a NUFLO Turbine Flowmeter, the MC-II Plus Rate Meter becomes an accurate system for the display of current flow rate and total volume.

The HFC-RTU Frequency Converter is designed to provide transmission of flow meter information from remote mounted turbine flow meters to readout equipment.

The Model HFC-RTU is specifically designed for a turbine flow meter and mounts directly on top of the flow meter. It receives its signal from the magnetic pickup and transmits a 4 – 20 mA analog signal representing the flow rate of the meter. The analog signal travels on the same pair of wires that power the instrument. Adjustment potentiometers are provided for the input signal sensitivity, zero setting, and span setting. Range selection is made via plug-in capacitors making calibration and field adjustments extremely simple. The Model HFC-RTU is DC powered from 12 to 30 VDC, depending upon the loop load resistance (see Load Resistance vs. Power Supply). As such, the HFC-RTU can be used directly with most field RTU’s and computer applications providing for noise immune transmission of turbine flow meter information.

Turbine flow meters  provide remote readings; however, noisy environments can cause erroneous or false readings at the remote terminals. The easily-installed NUFLO Low Power Pre-Amplifier helps solve the problem of noise when shielded signal cables cannot effectively eliminate them. Electrical noise can cause erroneous readings when the noise level equals or exceeds the meter output signal amplitude, which generally is very low (in millivolts). The remote reading unit might also record noise as signal output when the flow meter is not transmitting.

The Low Power Pre-Amplifier raises the turbine flow meter signal level at the metering point to a relatively high level signal (6-8 volts). Thus, the receiver can discriminate between signal and noise and register only true signals at the remote location. The flow meter transmits its low level signal through a pair of conductors to a remote reading unit. Shielded signal cables can help keep noise out of this system or reduce the noise level. However, a high noise level or the length of the transmission cable can make shielding ineffective. The preamplifier helps eliminate noise problems in these instances.

ScanPLC is a firmware-based enhancement to NuFlo's Scanner RTUs, enabling a customer to merge their process application knowledge with NuFlo's measurement and control expertise. Using ISaGRAF's software environment, our latest automation tool effectively adds full- function programmability to a Scanner's configurable simplicity.

ScanPLC consists of a software based run-time module, embedded in a Scanner's program memory. The run-time module executes a customer specified program, resulting in limitless functionality for a Scanner's input and output channels. With this added diversity, a Scanner can now be programmed for applications that range from steam injection control to natural gas well de-watering and production optimization routines.

Our Application Workbench provides the integrator a powerful, intuitive, Windows™ based tool for developing customized Scanner programs. With an understanding of any of five IEC 61131 compliant programming languages, a programmer can write, compile and load a program with our Application Workbench, then seamlessly view and configure the finished product with NuFlo's ScanWin™ graphical interface. ScanPLC is simply the most advanced productivity tool available!

C-Series Probe
The C-Series isokinetic inline sampling probe requires neither air nor hydraulics to capture samples. Rather, the probe is actuated by an electrical pulse from a controller, and uses existing pipeline pressure to fill the sample chamber with product. When the probe is actuated, a sample chamber opens, allowing process fluid to flow through the chamber. As the window rotates, the sample is captured in its natural state and fed by pipeline pressure to a receptacle. By ensuring that the process fluid is well-mixed and homogenous prior to sampling, and using a sampling process that collects the sample directly from the flow stream without changing the linear velocity or direction of flow, the customer is assured of obtaining a representative sample.

Sample Probe Controller
The CD Series Sample Probe Controller controls the sampling frequency of C Series sample probes. CD Series controllers are equipped with an internal 9- VDC motor that rotates the sample probe 180° between sample “grabs.” This design allows the C Series Sample Probe to take a sample with each 180° rotation. While the controller can be purchased without a sample probe, it is useful only when paired with a C-Series Sample Probe. The controllers are easily attached to the sample probe in the pipeline and require no other mounting hardware. CD Series controllers are available in four different configurations for controlling the sampling process with pulse counts, timing, or pacing from a computer or PLC. One configuration can be used to trigger an alarm to signal a loss of power, loss of input signal or motor failure. The control cards in CD-20 A and CD-30 A controllers each have four switches, which can be enabled to “read” flow in terms of pulse counts or time (seconds).

The CD-20 B controller is most often used where PLCs or computers are used to pace the controller. This unit enables one sample per pulse from a pre-scaled source. The CD-20 B also provides an electronic output signal to allow samples to be counted remotely or to verify motor rotation. The CD-20 SFA has the added feature of a dry contact for a controller failure alarm. An alarm is activated if a sample command is not received within a preset period of time, the motor has not rotated within a preset period of time, and/or power is lost to the unit.

Installation Accessories
When a pipeline is properly fitted with a 2-in. ball valve and a U- 22 union adapter, the C Series Sample Probe can be safely installed in a pipeline or removed from a pipeline, even under pressure, with an A-3 sample probe retriever. A pressure equalizing valve (PEV) and/or LA-22 line adapter may also be required in a C-Series probe installation.

Many critical applications for sampling systems require redundant or back-up verifications of quality or independent analysis of a separate sample cylinder. True Cut™ LS-1 (SF) systems are designed to fill two or more cylinders simultaneously. Every time this unit is activated, each cylinder receives one sample. These units are often used in gasoline blending facilities, but are capable of operating in any light hydrocarbon. As with most sampling systems, these units are designed for “proportional to flow” sampling and provide repeatable sample grab sizes as well as complete purge cycles.

The True Cut™ Model E-24 Batch Sample Controller is designed for proportional-to-flow, batch or time sampling. The operator can enter parameters via manual switches or download via an RS-232/RS-485 Communication Loop. The controller provides local or remote display of flow rate, total flow (barrels, gallons, or cubic meters), and total number of samples taken.

The unit's standard features include:
• Alarms
• Sample modes (flow, batch and time)
• Test mode
• Explosion-proof or weather-proof enclosures

C-Series Probe
The C-Series isokinetic inline sampling probe requires neither air nor hydraulics to capture samples. Rather, the probe is actuated by an electrical pulse from a controller, and uses existing pipeline pressure to fill the sample chamber with product. When the probe is actuated, a sample chamber opens, allowing process fluid to flow through the chamber. As the window rotates, the sample is captured in its natural state and fed by pipeline pressure to a receptacle. By ensuring that the process fluid is well-mixed and homogenous prior to sampling, and using a sampling process that collects the sample directly from the flow stream without changing the linear velocity or direction of flow, the customer is assured of obtaining a representative sample.

Sample Probe Controller
The CD Series Sample Probe Controller controls the sampling frequency of C Series sample probes. CD Series controllers are equipped with an internal 9- VDC motor that rotates the sample probe 180° between sample “grabs.” This design allows the C Series Sample Probe to take a sample with each 180° rotation. While the controller can be purchased without a sample probe, it is useful only when paired with a C-Series Sample Probe. The controllers are easily attached to the sample probe in the pipeline and require no other mounting hardware. CD Series controllers are available in four different configurations for controlling the sampling process with pulse counts, timing, or pacing from a computer or PLC. One configuration can be used to trigger an alarm to signal a loss of power, loss of input signal or motor failure. The control cards in CD-20 A and CD-30 A controllers each have four switches, which can be enabled to “read” flow in terms of pulse counts or time (seconds).

The CD-20 B controller is most often used where PLCs or computers are used to pace the controller. This unit enables one sample per pulse from a pre-scaled source. The CD-20 B also provides an electronic output signal to allow samples to be counted remotely or to verify motor rotation. The CD-20 SFA has the added feature of a dry contact for a controller failure alarm. An alarm is activated if a sample command is not received within a preset period of time, the motor has not rotated within a preset period of time, and/or power is lost to the unit.

Installation Accessories
When a pipeline is properly fitted with a 2-in. ball valve and a U- 22 union adapter, the C Series Sample Probe can be safely installed in a pipeline or removed from a pipeline, even under pressure, with an A-3 sample probe retriever. A pressure equalizing valve (PEV) and/or LA-22 line adapter may also be required in a C-Series probe installation.

Circulation Systems
True Cut Circulating Systems allow operators to collect, store, and mix crude oil and other low-pressure sampled product in a single receptacle, minimizing the loss of light ends. Designed for use with a True Cut “C” Series Sampler, a True Cut circulating system consists of a stationary sample receptacle, an integrated, skid-mounted gear pump and a motorized circulating and mixing system. These systems are well suited for supporting LACT units, pipeline sampling, truckloading/discharge, refinery sampling, shiploading/discharge, and production platform sampling. The systems’ large-capacity receptacles are ideal for long sampling periods. Two models the CMC-500 and the CMC-250 offer the operator a selection of receptacle designs.

Circulation Systems
True Cut Circulating Systems allow operators to collect, store, and mix crude oil and other low-pressure sampled product in a single receptacle, minimizing the loss of light ends. Designed for use with a True Cut “C” Series Sampler, a True Cut circulating system consists of a stationary sample receptacle, an integrated, skid-mounted gear pump and a motorized circulating and mixing system. These systems are well suited for supporting LACT units, pipeline sampling, truckloading/discharge, refinery sampling, shiploading/discharge, and production platform sampling. The systems’ large-capacity receptacles are ideal for long sampling periods. Two models the CMC-500 and the CMC-250 offer the operator a selection of receptacle designs.

The NuFlo Single Chamber Orifice Fitting is designed for use in installations in which the line can be depressurized to change or inspect the orifice plate.

The NuFlo Single Chamber Orifice Fitting* is designed for use in installations in which the line can be depressurized to change or inspect the orifice plate. Economical and light-weight, the Single Chamber features a simplicity of design with a minimum number of parts. A quick and easy method for removing orifice plates reduces shutdown time to a minimum. The interchangeability of the orifice plates and retainers between the NuFlo Dual Chamber and Single Chamber Orifice Fittings also provides an economy in inventory requirements. Single Chamber Orifice Fittings are available in flangeweld, weldneck, and flanged types. All NuFlo Single Chamber Orifice Fittings meet AGA/API Specifications. Two sets of 1/2’’ N.P.T. flange taps are provided on all single Chamber Orifice Fittings. They are available in 2’’, 3’’, and 4’’ sizes for Sweet, Sour, Nace, and Low Temperature Applications.

NuFlo Dual Chamber Orifice Fittings are compact, streamlined and rugged featuring a simple and rapid method for changing or inspecting orifice plates under pressure.

NuFlo Dual Chamber Orifice Fittings are compact, streamlined and rugged featuring a simple and rapid method for changing or inspecting orifice plates under pressure. The orifice fittings feature a ball type construction for opening and closing "without" a complicated gear mechanism. The unique construction incorporating a ball closure with spring-loaded, self-lubricating, Moly-filled Teflon® floating seals eliminates any need for periodic lubrication. All NuFlo Orifice Fittings are manufactured in accordance with ANSI, AGA/API and ASTM Standards and available in 2", 3", 4" and 6" sizes.

The meter runs are fabricated by trained manufacturing personnel with complete facilities for machining, welding, gauging and inspection. This produces a product with quality and metering accuracy not possible with field-fabricated units. All meter runs are factory-aligned and welded with special equipment that guarantees a straight, smooth meter run without defects. Standard lengths meet AGA/API requirements.

Two basic styles of Orifice Plates are available:

Type 500 Universal for use in Orifice Fittings and Ring-Joint Plate Holders, and Type 520 Paddle Type for use in Orifice Flanges. Specific tolerances which apply to all NuFlo Orifice Plates are as follows:
• Edges — Square and sharp, will not reflect a beam of light when viewed without magnification.

• Finish — 20 micro-inch roughness

• Flatness — Flat within 0.010 inches, per inch of dam height (dam height = pipe diameter minus orifice diameter, divided by 2)

• Bore — Orifice bore tolerance in strict accordance with AGA Gas Measurement Committee Report latest edition, ASME Fluid Meters Committee Report and Measurement Canada.

• Design — Normal stocked items are the standard design used in all industries. Special designs are available on request.

• Sizes — Orifice Plates have been furnished in line sizes from 1/2-inch to 36 inches. All standard line sizes, 2-inch to 8-inch are available from stock. Larger plates up to 60 inches line size available upon request.

• Optional — Vent or drain holes. Available at time of order. Gasket finished plates are also available at time of order.

The use of straightening vanes in meter runs serves a twofold
purpose:
• The turbulence often created in a complex piping system is straightened and smoothed to a normal flow pattern.

• The amount of straight pipe required preceding an orifice is reduced. NuFlo offers both flanged and pin type straightening vanes.
Vanes are available with carbon steel, 304 or 316 stainless steel tubing welded together and securely attached into the meter run. All tubes are parallel, with an internal chamfer on both ends, not less than 50% of wall thickness by 45 degrees, The tubes are reamed as thin as is practical at both ends and are constructed so as to minimize the possibility of vibration.

Start Up Screens
NuFlo Start-up Cone Strainers are used as temporary protection for compressors, valves and other in-line equipment from debris, slag, etc. that is usually present in piping systems during construction and start-up

Spectacle Blinds
Also called Figure 8 Blanks, these blinds have one solid end and one open end connected by a web or tie bar. Standard construction is A516- G70 steel machined with a gasket spiral finish and manufactured to meet API 590. Also available in other flange types (RTJ & Flat Face), other materials (304SS, 316SS, 410SS, Duplex, Hastelloy®, Monel & Chrome Moly) and other micro finish flange finishes.

Single Blinds and Ring Spacers
Standard construction is A516-G70 steel machined with a gasket spiral finish and manufactured to meet API 590. Also available in other thicknesses, flange types, materials and flange finishes.

Bleed Rings
Standard construction is 1-1/2’’ thick A516-G70 steel machined with a gasket spiral finish and having one 1/2’’ or 3/4’’ NPT drilled and tapped bleed connection (1-1/2’’ thick). Also available in other sizes, connection types, thicknesses, pressure ratings, flange types, materials and flange finishes.