Sinclair Collins Industrial Control Valves and Pressure Control Solutions
Maintain Reliable Flow, Pressure, and Process Control in Demanding Systems
Sinclair Collins control valves help industrial facilities manage steam, water, air, inert gases, and hydraulic pressure with greater consistency and control. Their diaphragm-operated designs support demanding applications where reliable shutoff, pressure regulation, modulation, and relief are critical to process performance.
Through All Air Inc., customers can access Sinclair Collins control valves, pressure-regulating valves, relief valves, check valves, and pilot signal control modules for new equipment, system upgrades, and maintenance requirements.
Ideal for applications that require:
- Reliable steam and process fluid control
- Accurate pressure regulation and relief
- Modulating valve performance
- High-pressure air, water, gas, or hydraulic service
- Stable pilot signal control
- Durable check valves for demanding systems
Explore Sinclair Collins Control Valves and Pressure Control Products
K Series Process Control Valves for Reliable Steam, Gas, and Liquid Control
Sinclair Collins K Series process control valves provide dependable regulation of steam, gases, liquids, and chemicals in demanding industrial systems. Their diaphragm-operated design, reversible actuator, and multiple construction options help facilities match valve performance to pressure, temperature, media, and control requirements.
Key features include:
- Field-reversible actuator for air-to-open or air-to-close operation
- Rolling diaphragm for consistent actuator thrust
- Three actuator sizes: 37, 64, and 135
- 0.75-inch stem travel across all sizes
- Multi-spring, low-profile actuator design
- 100% nitrogen gas testing
- Hard seat designed to meet Class IV leakage standards
Bronze Construction
Bronze K Series valves support a broad range of general industrial process applications requiring reliable pressure and temperature performance.
Available specifications include:
- Maximum media pressure up to 250 PSI
- Maximum pressure of 230 PSI for 2-inch valves
- Body sizes from 1/2 inch to 2 inches
- Temperature range from -40°F to 400°F
Stainless Steel Construction
Stainless steel K Series valves provide added corrosion resistance and higher temperature capability for more demanding process environments.
Available specifications include:
- 300-pound class body designed to ANSI B16.34
- Body sizes of 1/2 inch, 1 inch, 1-1/2 inches, and 2 inches
- Temperature range from -40°F to 450°F
Accessories
Available accessories help improve valve positioning, signal control, and compressed air quality.
Accessory options include:
- Pneumatic positioners
- I/P transducers
- Air preparation units
M Series Process Control Valves for Dependable Pressure and Flow Regulation
Sinclair Collins M Series process control valves provide reliable control of steam, gas, liquids, and other process media, helping facilities maintain stable operation across a range of pressure and temperature conditions.
Key features include:
- Field-reversible actuator for air-to-open or air-to-close operation
- Rolling diaphragm for consistent actuator thrust
- Two actuator sizes: 37 and 64
- Maximum actuator pressure of 35 PSI
- 0.75-inch stem travel across all sizes
- Multi-spring, low-profile actuator design
- 100% nitrogen gas testing
- Hard seat designed to meet Class IV leakage standards
- Factory calibrated for maximum operating pressure
- Fully tested before shipment
Bronze Construction
Bronze M Series valves provide dependable performance for general industrial process applications.
Available specifications include:
- Body sizes from 1/2 inch to 2 inches
- Maximum media temperature of 400°F
- Minimum media temperature of -40°F
Stainless Steel Construction
Stainless steel M Series valves offer added corrosion resistance and higher temperature capability for more demanding process environments.
Available specifications include:
- Body sizes of 1/2 inch, 1 inch, 1-1/2 inches, and 2 inches
- Media temperature range from -40°F to 450°F
Sinclair Collins HP Series valves help control low- and high-pressure hydraulic circuits in press operations and similar equipment, supporting smoother pressure transitions and more reliable machine control.
Key features include:
- Three-way, two-pressure hydraulic control
- Diaphragm-operated design
- Suitable for press and forming applications
- Can be actuated by manual, electrical, or mechanical air valves
- Controls low-pressure circuits from 50 to 2,000 PSI
- Supports high-pressure service up to 3,500 PSI
- Helps manage systems that require separate low- and high-pressure operating stages
SC2000 Series Check Valves for Reliable Backflow Prevention
Sinclair Collins SC2000 check valves help prevent reverse flow in industrial fluid and gas systems, supporting more stable operation and protecting upstream equipment from unwanted pressure or media return.
Stainless Steel Construction
The SC2000 Series uses a compact three-piece design with a piston-style stem and 316 stainless steel body for dependable service in demanding applications.
Key features include:
- Maximum working pressure of 500 PSI
- Investment-cast 316 stainless steel body
- Simple three-piece construction
- Piston-type stem
- Cast flow-direction arrow on the body
- Corrosion-resistant design for industrial service
SC2000 Series Process Control Valves for High-Pressure, High-Temperature Service
Stainless Steel, 400 PSI
The stainless steel SC2000 configuration is designed for demanding process environments that require corrosion resistance, high-pressure performance, and dependable shutoff.
Key features include:
- 316 stainless steel body
- Maximum operating pressure of 400 PSI
- Actuator pressure range of 35 to 120 PSI
- Temperature range from -40°F to 450°F
- Two-way and three-way operation
- Two-way normally open configuration available
- Cv range from 3.7 to 23.5
- Bubble-tight Dura-Seat sealing
- Dual-bearing guided stem
- Inline or flange mounting
- ANSI, DIN, and JIS flange options
- Available in 1/2-inch, 3/4-inch, 1-inch, and 1-1/2-inch sizes
SC2100 Series Process Control Valves for High-Pressure Process Applications
Stainless Steel, 460 PSI
The stainless steel SC2100 configuration is built for higher-pressure process service while maintaining corrosion resistance, dependable sealing, and easier mounting.
Key features include:
- 316/304 stainless steel body
- Maximum operating pressure of 460 PSI
- Actuator pressure range of 37 to 51 PSI
- Temperature range from -40°F to 450°F
- Two-way and three-way operation
- Cv range from 3.7 to 23.5
- Available in 1/2-inch, 3/4-inch, 1-inch, and 1-1/2-inch sizes
- Stainless steel cylinder cover for added corrosion resistance
- Self-centering piston to reduce misalignment
- Dual-bearing guided stem
- Carbon-filled PTFE stem seals
- Inline or flange mounting
- ANSI, DIN, and JIS flange options
- Four-bolt bottom cap for easier flange orientation
- 1/4-inch PT pilot port
SCV-3 Series Process Control Valves for High-Pressure Fluid Control
2- and 3-Way Diaphragm-Operated Valves
The SCV-3 Series is available in normally open, normally closed, and three-way configurations, with pressure classes designed for severe service.
Key features include:
- Two-way normally open configurations
- Two-way normally closed configurations
- Three-way valve options
- 4,000 PSI and 6,000 PSI pressure classes
- ASTM B61 bronze bodies for 4,000 PSI service
- Aluminum bronze billet bodies for 6,000 PSI service
- Sizes from 1/2 inch to 3 inches for 4,000 PSI models
- Sizes from 1/2 inch to 2 inches for 6,000 PSI models
- Standard seals for water and petroleum-based fluids
- Optional seals for phosphate ester and other specialized media
SCV-100 Series Process Control Valves for Compact Steam and Liquid Control
Steam and Liquid Service Up to 500 PSI
The SCV-100 Series uses stainless steel internal components, a self-adjusting packing design, and a compact valve body to support consistent performance across demanding temperature and pressure conditions.
Key features include:
- Suitable for steam and hot or cold liquids
- Operating temperature range from -40°F to 450°F
- Maximum operating pressure up to 500 PSI
- Compact design for limited installation space
- One-piece stainless steel stem and disc
- Drop-in stainless steel seat rings
- Cage-style upper seat that helps direct flow
- Glass-reinforced PTFE stem packing
- Integrally confined spring that reduces manual adjustment
- Spiral-wound stainless steel gasket for dependable sealing
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