These valves combine two block valves and one equalizing valve to isolate, equalize, and calibrate differential pressure instruments. The 3010’s metal seat offers high-pressure durability, while the 3110’s soft seat provides leak-tight performance for gas and clean fluid systems. Their robust design ensures long service life in demanding process environments. Mounts directly to transmitters via flange or threaded connections.

• Differential pressure measurement
• Flow monitoring in pipelines
• Filtration systems
• Chemical and oil refining processes

• Pressure rating: Up to 6,000 psi
• Temperature: Up to 232°C (hard), 148°C (soft)
• Body material: 316 SS, carbon steel
• Orifice: 0.187"
• Mounting: Direct or remote (threaded, flange)

• Standard 3-valve layout for DP transmitters
• Hard seat for pressure and temperature endurance
• Soft seat for bubble-tight shutoff
• Simplifies transmitter maintenance and calibration

Built for tight mounting areas, the 3040 provides two isolate valves and one equalize valve in a reduced-body design. Its hard seat construction offers high integrity in high-pressure and high-temperature applications. Despite its size, it maintains standard function for safe calibration and maintenance of differential pressure transmitters. Ideal for skids, OEM panels, or field transmitters.

• Compact process control panels
• OEM equipment
• Offshore and mobile systems
• Energy and chemical process lines

• Pressure rating: Up to 6,000 psi
• Temperature: Up to 232°C
• Orifice: 0.187"
• Material: 316 SS, carbon steel
• Mounting: DP direct or remote

• Compact footprint saves space
• Hard seat for rugged durability
• Efficient pressure equalization and isolation
• Compatible with standard DP transmitters

Featuring a 0.375” orifice, the 3510 Series is ideal for systems requiring increased flow capacity and precise pressure control. Its soft seat ensures reliable shutoff in gas or clean fluid lines. The standard layout includes two block valves and one equalizer valve to simplify instrument calibration. Built to mount directly to DP transmitters for inline measurement applications.

• Natural gas flow monitoring
• Filtration and pressure drop systems
• High-flow differential measurements
• Gas processing facilities

• Orifice: 0.375”
• Pressure: Up to 6,000 psi
• Temperature: Up to 148°C
• Material: SS or carbon steel
• Ports: ½" NPT, flanged mount available

• Large 0.375” orifice for better flow characteristics
• Soft tip for leak-free sealing
• Ideal for gas and low-leakage processes
• Simplifies DP transmitter access

Optimized for miniaturized or portable systems, these manifolds offer reliable isolation and equalization for DP instruments in compact setups. The 3610 provides rugged hard seat performance, while the 3710 delivers leak-free soft tip sealing. Despite their reduced size, they ensure full functionality for calibration and maintenance routines. Perfect for OEM and panel applications.

• OEM and portable DP systems
• Analyzer skids
• Process panels
• Compact industrial instrumentation

• Orifice: 0.141”
• Pressure: Up to 6,000 psi
• Temperature: Up to 232°C (hard), 148°C (soft)
• Materials: 316 SS, carbon steel
• Ports: ¼" or ½" NPT

• Ultra-compact with full 3-valve functionality
• 0.141” orifice for fine control
• Hard or soft seat options available
• Excellent for tight spaces or mobile setups