Products > Pilot-Operated Regulators > HD Regulators with Common Pilots

MODEL
TYPICAL APPLICATIONS
SPECIFICATIONS
     

HDP

The HD Regulator with the “P” Pressure Pilot is used for reducing steam pressure in piping mains and process applications. Pilot-operated regulators will maintain constant downstream pressure even when the inlet pressure to the regulator fluctuates or steam usage varies. CATALOG SPEC SHEET(S) Model:   HDP
Body Material (Valve): Ductile Iron
Body Material (Pilot): Ductile Iron or Cast Steel
Max Inlet Pressure:  300 PSIG
Reduced Outlet Pressure Range:  3-200 PSIG
Sizes : 1/2" - 6"
Connections:  Threaded (1/2” - 2”), 150# FLG (1” - 6”), 300# FLG (1” - 6”)
     

HDT

The HD Regulator with the “T” Temperature Pilot is used for controlling temperature in various processes and systems, such as Oil Heaters, Ovens, Process Heaters, Vats, Dryers and Jacketed Kettles. CATALOG SPEC SHEET(S) Model: HDT
Body Material (Valve): Ductile Iron
Body Material (Pilot): Ductile Iron / Cast Steel
Max Inlet Pressure: 300 PSIG
Temperature Control Range:  60-260 °F
Sizes : 1/2" - 6"
Connections: Threaded (1/2” - 2”), 150# FLG (1” - 6”), 300# FLG (1” - 6”)
     

HDA

The HD Regulator with the “A” Air Pilot is used for reducing steam pressure on steam mains and process equipment. The “A” Air Pilot can also be used in conjunction with the PTL and PTR Pneumatic Temperature Controllers for controlling temperature in process applications. The principal advantage of the “A” Air Pilot over standard spring-loaded pilots is that pressure adjustments to the regulator can be made from a remote location. A regulator placed in a difficult to reach or inaccessible location can be adjusted by a remote control panel board placed in an accessible location.CATALOG SPEC SHEET(S) Model: HDA
Body Material (Valve): Ductile Iron
Body Material (Pilot): Ductile Iron
Max Inlet Pressure: 300 PSIG
Reduced Outlet Pressure Range:  3-200 PSIG
Sizes : 1/2" - 6"
Connections: Threaded (1/2” - 2”), 150# FLG (1” - 6”), 300# FLG (1” - 6”)
     

HDPT

The HD Regulator with both the “P” Pressure Pilot and “T” Temperature Pilot is used to simultaneously control both pressure and temperature in process applications.

Using both the temperature and pressure pilot on the same regulator eliminates the need for two separate regulators to control temperature and pressure.CATALOG SPEC SHEET(S)
Model: HDPT
Body Material (Valve): Ductile Iron
Body Material (Pilot): Ductile Iron / Cast Steel
Max Inlet Pressure: 300 PSIG
Reduced Outlet Pressure Range:  3-200 PSIG
Temperature Control Range:  60-260 °F
Sizes : 1/2" - 6"
Connections: Threaded (1/2” - 2”), 150# FLG (1” - 6”), 300# FLG (1” - 6”)

 

Products > Pilot-Operated Regulators > HD Regulators with Common Pilots

 

Try Our Online Sizing & Selection Program!

Call, Fax or E-mail Us to Receive our Latest Product Catalog.

Questions? Contact us for your application needs.

Special requirements? Watson McDaniel can custom-engineer condensate pumping systems to meet your specific needs

Product Literature:

Product Catalog - Pilot-Operated Regulating Valves

Typical Regulator & Pilot Combinations

Over-Pressure Protection Methods

Noise Attenuators

Capacities for sizing of HD & HSP Series Regulators

Regulating Valve Applications