| HD
& D-Series Pilot-Operated Regulators
PILOT-OPERATED
REGULATORS Read the
following document for more information about the HD Series: |
|
| HD & D Pilots | |
| Pressure Pilots - The “P” is our standard spring-loaded pressure pilot. The “P5” is used for special applications requiring 0.5 PSI accuracy. | |
| Back Pressure Pilot - Controls system back pressure. | |
| Temperature Pilot - Used for controlling temperature on most applications. | |
| Air Pilot - Normally used for controlling steam pressure using an air signal. Also used for temperature control when used in conjunction with the “PTR” or “PTL” temperature controller. | |
| Temperature Controllers (used with “A” Air Pilot) - The “PTR” or “PTL” will control a wider temperature range than the standard “T” Pilot. | |
| Temperature Pilot - Special purpose temperature pilot for controlling low temperatures | |
| Solenoid Pilot - Used in conjunction with any of the above pilots for electrical on/off control of HD & D Regulators. | |
| HD & D Regulator with Pilots (Typical Combinations) | |
| Pressure (HD Regulator with “P” Pressure Pilot) | |
| Temperature (HD Regulator with “T” Temperature Pilot) | |
| Pressure (HD Regulator with “A” Air Pilot) | |
| Pressure & Temperature (HD Regulator with “P” Pressure & “T” Temperature Pilot) | |
| Reduces noise in pressure reducing applications | |
| Pressure Regulators | |
| Regulator | |
| O Series | Pressure Regulating Valve - STEAM, Water, Air, Oil, other Liquids & Gases The O Series, with Cast Iron body and Hardened Stainless internals, is our most popular and economical solution for reducing pressure in STEAM systems. It will also handle Air, Water, Oil as well as other Liquids and Gases. |
| B Series | Pressure Regulating Valve - WATER, Air, Oil, other Liquids & Gases The B-Series is primarily used for reducing pressure in WATER systems. It will also handle Air, Oil, as well as other Liquids and Gases. The B-Series is higher capacity than the O-Series, however it will not handle the temperature requirements of Steam. |
| 455 Series | Pressure Regulating Valve - STEAM, Air, Water, other Gases The 455 is used for reducing pressure in STEAM applications and require only 5 PSIG minimum inlet pressure (HD regulators require minimum 15 PSIG). Excellent for use in steam systems that contain large amounts of scale that may cause failure in pilot-operated regulators. With a slight modification to the internal mechanism, the 455 can be used for Liquid systems. |
| Pilot-Operated Regulating Valve - STEAM, Air The 402 is a pilot-operated, piston-actuated, pressure regulator used for reducing pressure in STEAM systems. This regulator can be equipped with an optional internal sensing line which simplifies installation. The 403 Series has all stainless steel internals for high-pressure applications. |
|
| Back Pressure-Relief Valves | |
| R Series | Relief and Back Pressure Valves - Water, Liquids The R Series is an economically-priced Back Pressure Relief Valve for Liquid service. Relief Valves protect systems from over-pressurized conditions. |
| 3040 Series | Relief and Back Pressure Valves - Water, Liquids The 3040 Back Pressure Relief Valve has a much higher capacity than the R Series. Used for Liquid service. Relief Valves protect systems from over-pressurized conditions. |
| Temperature Regulating Valves | |
| 175 Series | Heating |
| 153 Series | Cooling |
| Self-Operating Temperature Regulating Valves - Heating/Cooling The 175/153 Series temperature regulating valves are used for controlling temperatures in industrial and HVAC applications. |
|
HD Series Pilot-Operated Regulating Valves