Stainless Steel Specialty Valves
HYDRAULIC INTERFACE VALVES
Hydraulic Interface Valve Documents 
20HM20 - 3/8" - manual override
20HM22 - 1/4" - manual override
20HM24 - 1/4" - 10,000 psi
20HM27 - 1/4" - manual override
20HM34 - 9/16" - manual override
20HM42 & 82 - 1/4" - status indicator
20HM52 - 1/4" - diaphragm
20HM52 - 1/4" - diaphragm
20HM104 & 105 - 1/4" - panel mount
20HM154 - 3/8" - panel mount
20SHM10 - 1/4" - piston
Sigma Valves Hydraulic Interface Control Valves are constructed from 316SS to meet the demanding requirements of Hydraulic Power Units (HPU), Wellhead Control Systems (WHCP) and other actuation applications that will be located in harsh environments ranging from offshore, inland wetlands, arid regions and arctic areas or in control systems that may be subject to corrosive medias.
A wide range of configurations are available including:
- 2-way and 3-way
- Normally Open/Normally Closed
- Pneumatic Pilot or Hydraulic Pilot
- Standard Pressure (6000 psi), Medium Pressure (up to 15000)
- High Ratio Operators: 150 to 1 (pilot pressure versus control pressure)
- Standard Flow (5 GPM), High Flows (50 GPM actuator applications)
- Port sizes: 1/4” - 3/8” NPT; 3/8 MP and 1/4 HP
- With and Without Manual Override
- Bracket Mount, Panel Mount and Indicator Mount
- Standard and H2S Service
Sigma HCV consists of five distinct profiles, large operator/high ratio type, large operator panel mount type, small operator/low ratio, small operator panel mount type and cast body indicating type
Special configurations and applications are available on request as well to meet whatever your particular installation demands.
Sigma Product Line
- Hydraulic Interface Valves
- Quick Exhaust Valves
- Fusible Valves
- Pressure Sensors
- Relief Valves
- Regulators
- Manual Reset Relays
- Check Valves
- Accessories - (Acccumulators, Reservoir Vent Caps, Orifices & ESD Valves)
- Control Systems
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Please contact us if you have any questions:
Phone: 972-355-3453
Fax: 972-446-8642
email: sales@sigma-valves.com