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P Pilot
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The "P" Pressure Pilot is used with the HD Regulator
to control steam pressure in steam mains or for process
equipment. Pilot operated regulators will maintain constant
downstream pressure even when the inlet pressure to the valve
fluctuates or steam usage varies.
The P Pilot can maintain downstream pressure to ± 1 PSIG
 CATALOG SPEC SHEET(S)
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Model: P Pilot
Body & Cover Material: Ductile Iron or Cast Steel
Max Inlet Pressure: 300 PSIG
Reduced Outlet Pressure Range: 3-200 PSIG
Minimum Inlet Pressure:
15 PSIG (w/ Std Main Valve)
5 PSIG (w/ Low Pressure Main Valve)
Accuracy: ± 1 PSIG
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P5 Pilot
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The "P5" Pressure Pilot is used with the HD Regulator
to control steam pressure in steam mains or for process
equipment. Pilot operated regulators will maintain constant
downstream pressure even when the inlet pressure to the valve
fluctuates or steam usage varies.
The P5 Pilot can maintain downstream pressure to ± 0.5 PSIG
CATALOG SPEC SHEET(S) |
Model: P5 Pilot
Body & Cover Material: Ductile Iron or Cast Steel
Max Inlet Pressure: 300 PSIG
Reduced Outlet Pressure Range: 1-25 PSIG
Minimum Inlet Pressure:
15 PSIG (w/ Std Main Valve)
5 PSIG (w/ Low Pressure Main Valve)
Accuracy: ± 0.5 PSIG
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BP Pilot
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The “BP” Back-Pressure Pilot used with the HD regulator,
maintains upstream pressure in steam systems. These regulators
are commonly used to supply flash steam to low pressure mains.
The BP Pilot can maintain downstream pressure to ± 1 PSIG
CATALOG SPEC SHEET(S) |
Model: BP Pilot
Body & Cover Material: Ductile Iron
Max Inlet Pressure: 300 PSIG
Back Pressure Range: 10-200 PSIG
Minimum Inlet Pressure:
15 PSIG (w/ Std Main Valve)
5 PSIG (w/ Low Pressure Main Valve)
Accuracy: ± 1 PSIG
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T Pilot
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The “T” Temperature Pilot is used with the HD regulator
to control temperature in various processes and systems.
Some examples are: Oil Heaters, Ovens, Process heaters, Vats, Dryers and Jacketed Kettles.
Note: The Low Pressure Temperature Pilot must be used
in conjunction with a low pressure main valve
for applications where inlet steam pressure is
less than 15 PSIG. SPECIFY WHEN ORDERING.
CATALOG SPEC SHEET(S) |
Model: T Pilot
Body Material: Ductile Iron / Cast Steel
Max Inlet Pressure: 300 PSIG
Temperature Control Range: 60-260 °F
Minimum Inlet Pressure:
15 PSIG (w/ Std Main Valve)
5 PSIG (w/ Low Pressure Main Valve)
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A Pilot
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The “A” Air Pilot is used with the HD Regulator to control
steam pressure on steam mains and process equipment.
The “A” Air Pilot can also be used in conjunction with the
PTL or PTR pneumatic temperature controllers for controlling
temperature in process applications. The principal advantage
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 that is placed in a difficult to
reach or inaccessible location can be adjusted by a remote
control panel board placed in an accessible location.
Note: Temperature Control Range: 0-350°F when used with PTL & PTR Pneumatic Temperature Controllers
CATALOG SPEC SHEET(S) |
Model: A Pilot
Body & Cover Material: Ductile Iron
Max Inlet Pressure: 300 PSIG
Reduced Outlet Pressure Range: 3-200 PSIG
Minimum Inlet Pressure:
15 PSIG (w/ Std Main Valve)
5 PSIG (w/ Low Pressure Main Valve)
Control Air Pressure Range: 3-125 PSIG
Accuracy: ± 1 PSIG
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TRP Pilot
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The “TRP” Temperature Pilot is used with the HD Regulator to
control temperature in various processes and systems. Some
examples are: Oil heaters, Ovens, Process Heaters, Vats, Dryers
and Jacketed Kettles.
The "TRP" Pilot will control lower temperatures than the standard "T" Pilot.
CATALOG SPEC SHEET(S) |
Model: TRP Pilot
Body Material: Ductile Iron / Cast Steel
Max Inlet Pressure: 300 PSIG
Temperature Control Range: 20-250 °F
Minimum Inlet Pressure:
15 PSIG (w/ Std Main Valve)
5 PSIG (w/ Low Pressure Main Valve)
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S Pilot
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The “S” Solenoid Pilot can be used for automatic operation, remote control,
programmed cycling, sequential function interlocks with other
equipment, and emergency shut-off in case of power failure.
The "S" Pilot can be used in conjunction with
Pressure, Temperature, or Air Pilots to electrically control on/off
operation of the HD Regulator. When the solenoid pilot is used,
the regulator can be turned on or off by electrically activating
or de-activating the solenoid.
Normally Closed (nc) - Standard
The normally closed Solenoid Pilot remains closed in the
non-activated state. The regulating valve will remain closed
until an electrical signal is sent to the solenoid pilot. This is
known as a fail-safe condition.
Normally Open (no) - Optional
The normally opened Solenoid Pilot remains open in the
non-activated state. The regulating valve will function normally
unless an electrical signal is used to shut-off the solenoid pilot.CATALOG SPEC SHEET(S) |
Model: S Pilot
Body & Cover Material: Ductile Iron
Max Inlet Pressure: 250 PSIG
Steam Inlet Pressure: 0-180 or 180-250 PSIG
NEMA Ratings:
NEMA 1 - Standard
NEMA 4 - Waterproof (Optional)
NEMA 7 - Explosion-proof (Optional)
Voltage:
110 VAC (Standard)
24 VAC (Optional)
220 VAC (Optional)
240 VAC (Optional)
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DP Pilot
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The “DP” Differential Pressure Pilot is used with the HD
Regulator to maintain steam pressure at a balanced differential
pressure above another media source. This is typical on an oil
burner where steam used for atomization is injected into the oil
burner at a set pressure above the incoming oil supply. Therefore,
as oil pressure fluctuates based on demand, the steam pressure
will be maintained at a differential pressure above the oil pressure.
CATALOG SPEC SHEET(S) |
Model: DP Pilot
Body & Cover Material: Ductile Iron / Cast Steel
Max Inlet Pressure: 300 PSIG
Reduced Outlet Pressure Range: 3-200 PSIG
Minimum Inlet Pressure:
15 PSIG (w/ Std Main Valve)
5 PSIG (w/ Low Pressure Main Valve)
Accuracy: ± 2 PSIG
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