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IMI STI
CO - 3-Way Pneumatic Operating Valve
Compact 3-way pneumatic valve for high-flow control in safety, trip, and shutdown applications.
Eliminates diaphragm deformation for reliable operation in extreme conditions.
Enables fast switching, even with low CV solenoid valves.
Manifold mounting system reduces assembly time, cost, and space requirements.
Features
The IMI CO 3-Way Pneumatic Operating Valve is a high-performance, pilot-operated valve designed for high-flow control applications. Available in sizes from ¼” to 2”, it can be used in synchronous units piloted by a pneumatic pressure switch or solenoid valve for safety, trip, and shutdown functions. Built with an exclusive manifold mounting system, it eliminates the need for additional fittings or nipples, reducing assembly time and inventory costs. Constructed from anodised aluminium or stainless steel 316, it ensures durability in demanding environments, including offshore and sandstorm conditions. Its robust design supports both single and double-acting actuators under varied temperature and pressure conditions.
Key features
3-way pilot-operated pneumatic valve
Sizes: ¼”, ½”, 1”, 1½”, 2”
Materials: anodised aluminium, stainless steel 316
Port sizes: 1/8” to 2” NPT, manifold mounting options
Operating pressure: 2.5 to 7 bar, design pressure 10 bar
Temperature range: -40°C to +85°C (custom options available)
Suitable for standard, offshore, and extreme environments
Compatible with single and double-acting actuators
High-flow capacity with optimised CV ratings
Compact, lightweight design with reduced installation footprint
Specifications
Ambient Temperature (°C)
-40 to 85
Port Size (")
0.125 to 2
Material
Stainless Steel 316
Anodised Aluminium
Painted Aluminium
Operation
Pneumatic Operated
Port Options
Manifold Mounting
Operating Pressure (bar)
2.5 to 7.5
Supply Medium
Pneumatic
Configuration
3 Way
Certification
SIL3
ATEX
IECEx
Resources
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