Watson McDaniel Company Datasheets for Pressure Regulators

Pressure regulators are used to maintain a constant outlet pressure or flow.
Pressure Regulators: Learn more

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Product Name Notes
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 402 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 402 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 402 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 402 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 402 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 402 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 402 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 403 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 403 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 403 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 403 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 403 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 403 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 1 1/2" 403 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 402 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 402 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 402 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 402 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 402 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 402 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 402 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 403 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 403 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 403 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 403 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 403 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 403 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 1 1/4" 403 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 1" 402 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 1" 402 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 1" 402 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 1" 402 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 1" 402 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 1" 402 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 1" 402 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 1" 403 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 1" 403 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 1" 403 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 1" 403 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 1" 403 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 1" 403 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 1" 403 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 1/2" 402 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 1/2" 402 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 1/2" 402 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 1/2" 402 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 1/2" 402 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 1/2" 402 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 1/2" 402 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 1/2" 403 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 1/2" 403 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 1/2" 403 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 1/2" 403 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 1/2" 403 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 1/2" 403 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 1/2" 403 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 402 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 402 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 402 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 402 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 402 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 402 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 402 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 403 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 403 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 403 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 403 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 403 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 403 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 2 1/2" 403 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 2" 402 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 2" 402 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 2" 402 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 2" 402 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 2" 402 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 2" 402 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 2" 402 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 2" 403 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 2" 403 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 2" 403 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 2" 403 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 2" 403 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 2" 403 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 2" 403 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 3" 402 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 3" 402 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 3" 402 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 3" 402 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 3" 402 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 3" 402 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 3" 402 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 3" 403 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 3" 403 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 3" 403 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 3" 403 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 3" 403 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 3" 403 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 3" 403 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 3/4" 402 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 3/4" 402 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 3/4" 402 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 3/4" 402 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 3/4" 402 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 3/4" 402 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 3/4" 402 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 3/4" 403 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 3/4" 403 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 3/4" 403 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 3/4" 403 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 3/4" 403 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 3/4" 403 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 3/4" 403 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 4" 402 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 4" 402 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 4" 402 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 4" 402 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 4" 402 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 4" 402 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 4" 402 Series 50-200
Pilot-Operated Pressure Regulating Valve -- 4" 403 Series 0-10
Pilot-Operated Pressure Regulating Valve -- 4" 403 Series 10-50
Pilot-Operated Pressure Regulating Valve -- 4" 403 Series 100-200
Pilot-Operated Pressure Regulating Valve -- 4" 403 Series 200-280
Pilot-Operated Pressure Regulating Valve -- 4" 403 Series 30-125
Pilot-Operated Pressure Regulating Valve -- 4" 403 Series 40-100
Pilot-Operated Pressure Regulating Valve -- 4" 403 Series 50-200
The 402 and 403 Series Internally Pilot-Operated Pressure Regulating Valves are used for pressure reduction on steam mains and other process equipment. Pilot-operated regulators will maintain a constant and accurate...
Pressure & Temperature Regulating Valve -- 1 1/2" DPT
Pressure & Temperature Regulating Valve -- 1 1/2" HDPT
Pressure & Temperature Regulating Valve -- 1 1/4" DPT
Pressure & Temperature Regulating Valve -- 1 1/4" HDPT
Pressure & Temperature Regulating Valve -- 1" DPT
Pressure & Temperature Regulating Valve -- 1" HDPT
Pressure & Temperature Regulating Valve -- 1/2" DPT
Pressure & Temperature Regulating Valve -- 1/2" HDPT
Pressure & Temperature Regulating Valve -- 2 1/2" DPT
Pressure & Temperature Regulating Valve -- 2 1/2" HDPT
Pressure & Temperature Regulating Valve -- 2" DPT
Pressure & Temperature Regulating Valve -- 2" HDPT
Pressure & Temperature Regulating Valve -- 3" DPT
Pressure & Temperature Regulating Valve -- 3" HDPT
Pressure & Temperature Regulating Valve -- 3/4" DPT
Pressure & Temperature Regulating Valve -- 3/4" HDPT
The HD or D 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...
Air Pilot-Operated Regulating Valve -- 1 1/2" DA1
Air Pilot-Operated Regulating Valve -- 1 1/2" DA4
Air Pilot-Operated Regulating Valve -- 1 1/2" DA6
Air Pilot-Operated Regulating Valve -- 1 1/2" HDA1
Air Pilot-Operated Regulating Valve -- 1 1/2" HDA4
Air Pilot-Operated Regulating Valve -- 1 1/2" HDA6
Air Pilot-Operated Regulating Valve -- 1 1/4" DA1
Air Pilot-Operated Regulating Valve -- 1 1/4" DA4
Air Pilot-Operated Regulating Valve -- 1 1/4" DA6
Air Pilot-Operated Regulating Valve -- 1 1/4" HDA1
Air Pilot-Operated Regulating Valve -- 1 1/4" HDA4
Air Pilot-Operated Regulating Valve -- 1 1/4" HDA6
Air Pilot-Operated Regulating Valve -- 1" DA1
Air Pilot-Operated Regulating Valve -- 1" DA4
Air Pilot-Operated Regulating Valve -- 1" DA6
Air Pilot-Operated Regulating Valve -- 1" HDA1
Air Pilot-Operated Regulating Valve -- 1" HDA4
Air Pilot-Operated Regulating Valve -- 1" HDA6
Air Pilot-Operated Regulating Valve -- 1/2" DA1
Air Pilot-Operated Regulating Valve -- 1/2" DA4
Air Pilot-Operated Regulating Valve -- 1/2" DA6
Air Pilot-Operated Regulating Valve -- 1/2" HDA1
Air Pilot-Operated Regulating Valve -- 1/2" HDA4
Air Pilot-Operated Regulating Valve -- 1/2" HDA6
Air Pilot-Operated Regulating Valve -- 2 1/2" DA1
Air Pilot-Operated Regulating Valve -- 2 1/2" DA4
Air Pilot-Operated Regulating Valve -- 2 1/2" DA6
Air Pilot-Operated Regulating Valve -- 2 1/2" HDA1
Air Pilot-Operated Regulating Valve -- 2 1/2" HDA4
Air Pilot-Operated Regulating Valve -- 2 1/2" HDA6
Air Pilot-Operated Regulating Valve -- 2" DA1
Air Pilot-Operated Regulating Valve -- 2" DA4
Air Pilot-Operated Regulating Valve -- 2" DA6
Air Pilot-Operated Regulating Valve -- 2" HDA1
Air Pilot-Operated Regulating Valve -- 2" HDA4
Air Pilot-Operated Regulating Valve -- 2" HDA6
Air Pilot-Operated Regulating Valve -- 3" DA1
Air Pilot-Operated Regulating Valve -- 3" DA4
Air Pilot-Operated Regulating Valve -- 3" DA6
Air Pilot-Operated Regulating Valve -- 3" HDA1
Air Pilot-Operated Regulating Valve -- 3" HDA4
Air Pilot-Operated Regulating Valve -- 3" HDA6
Air Pilot-Operated Regulating Valve -- 3/4" DA1
Air Pilot-Operated Regulating Valve -- 3/4" DA4
Air Pilot-Operated Regulating Valve -- 3/4" DA6
Air Pilot-Operated Regulating Valve -- 3/4" HDA1
Air Pilot-Operated Regulating Valve -- 3/4" HDA4
Air Pilot-Operated Regulating Valve -- 3/4" HDA6
Air Pilot-Operated Regulating Valve -- 4" HDA1
Air Pilot-Operated Regulating Valve -- 4" HDA4
Air Pilot-Operated Regulating Valve -- 4" HDA6
Air Pilot-Operated Regulating Valve -- 6" HDA1
Air Pilot-Operated Regulating Valve -- 6" HDA4
Air Pilot-Operated Regulating Valve -- 6" HDA6
The HD or D 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...
Pilot-Operated Pressure Regulating Valve -- 1 1/2" DP
Pilot-Operated Pressure Regulating Valve -- 1 1/2" DP5
Pilot-Operated Pressure Regulating Valve -- 1 1/2" HDP
Pilot-Operated Pressure Regulating Valve -- 1 1/2" HDP5
Pilot-Operated Pressure Regulating Valve -- 1 1/4" DP
Pilot-Operated Pressure Regulating Valve -- 1 1/4" DP5
Pilot-Operated Pressure Regulating Valve -- 1 1/4" HDP
Pilot-Operated Pressure Regulating Valve -- 1 1/4" HDP5
Pilot-Operated Pressure Regulating Valve -- 1" DP
Pilot-Operated Pressure Regulating Valve -- 1" DP5
Pilot-Operated Pressure Regulating Valve -- 1" HDP
Pilot-Operated Pressure Regulating Valve -- 1" HDP5
Pilot-Operated Pressure Regulating Valve -- 1/2" DP
Pilot-Operated Pressure Regulating Valve -- 1/2" DP5
Pilot-Operated Pressure Regulating Valve -- 1/2" HDP
Pilot-Operated Pressure Regulating Valve -- 1/2" HDP5
Pilot-Operated Pressure Regulating Valve -- 2 1/2" DP
Pilot-Operated Pressure Regulating Valve -- 2 1/2" DP5
Pilot-Operated Pressure Regulating Valve -- 2 1/2" HDP
Pilot-Operated Pressure Regulating Valve -- 2 1/2" HDP5
Pilot-Operated Pressure Regulating Valve -- 2" DP
Pilot-Operated Pressure Regulating Valve -- 2" DP5
Pilot-Operated Pressure Regulating Valve -- 2" HDP
Pilot-Operated Pressure Regulating Valve -- 2" HDP5
Pilot-Operated Pressure Regulating Valve -- 3" DP
Pilot-Operated Pressure Regulating Valve -- 3" DP5
Pilot-Operated Pressure Regulating Valve -- 3" HDP
Pilot-Operated Pressure Regulating Valve -- 3" HDP5
Pilot-Operated Pressure Regulating Valve -- 3/4" HDP
Pilot-Operated Pressure Regulating Valve -- 3/4" HDP5
Pilot-Operated Pressure Regulating Valve -- 3/4"DP
Pilot-Operated Pressure Regulating Valve -- 3/4"DP5
Pilot-Operated Pressure Regulating Valve -- 4" HDP
Pilot-Operated Pressure Regulating Valve -- 4" HDP5
Pilot-Operated Pressure Regulating Valve -- 6" HDP
Pilot-Operated Pressure Regulating Valve -- 6" HDP5
The HD or D 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...
Pilot-Operated Temp. Regulating Valve -- 1 1/2" DT
Pilot-Operated Temp. Regulating Valve -- 1 1/2" HDT
Pilot-Operated Temp. Regulating Valve -- 1 1/4" DT
Pilot-Operated Temp. Regulating Valve -- 1 1/4" HDT
Pilot-Operated Temp. Regulating Valve -- 1" DT
Pilot-Operated Temp. Regulating Valve -- 1" HDT
Pilot-Operated Temp. Regulating Valve -- 1/2" DT
Pilot-Operated Temp. Regulating Valve -- 1/2" HDT
Pilot-Operated Temp. Regulating Valve -- 2 1/2" DT
Pilot-Operated Temp. Regulating Valve -- 2 1/2" HDT
Pilot-Operated Temp. Regulating Valve -- 2" DT
Pilot-Operated Temp. Regulating Valve -- 2" HDT
Pilot-Operated Temp. Regulating Valve -- 3" DT
Pilot-Operated Temp. Regulating Valve -- 3" HDT
Pilot-Operated Temp. Regulating Valve -- 3/4" DT
Pilot-Operated Temp. Regulating Valve -- 3/4" HDT
Pilot-Operated Temp. Regulating Valve -- 4" HDT
Pilot-Operated Temp. Regulating Valve -- 6" HDT
The HD or D 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...

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