Safety Relief Valves - SR - SRH - H | Product Series

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Pressure Relief Setting (barg)

Pressure Relief Setting (psig)

Inlet Connection

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Flow Capacity (SCFM Air)

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Safety Relief Valves - SR - SRH - H

Safety Relief Valves - SR - SRH - H

The SR, SRH, H Safety Relief Valves are designed to protect industrial and commercial refrigeration systems from overpressure situations. This series is designed to open at a specified pressure and can be used in single or dual relief configurations.

Technical Specifications

  • Model Number: Please Configure Part to View Model Number
  • Minimum Operating Temperature: -40 °C, -40 °F
  • Maximum Operating Temperature: 150 °C, 300 °F
  • Minimum Ambient Temperature: -29 °C, -20 °F
  • Maximum Ambient Temperature: 94 °C, 200 °F
  • Pressure Relief Setting: 10.3 to 27.6 barg, 150 to 400 psig
  • Maximum Operating Pressure: 27.6 barg, 400 psig
  • Product Series: SR, SRH
  • Valve Type: SR1 to SR4, SRH1 to SRH4
  • Valve Material: Cast Iron (External), Stainless Steel (Internal), PTFE ((Seat)
  • Inlet Connection Size: 1/2 to 1-1/4 inch
  • Outlet Connection Size: 3/4 to 2-1/4 inch
  • Orifice Size: 10.4 to 19.05 mm, 0.409 to 3/4 inch
  • Air Flow Rate: 130 to 1776 SCFM, 10 to 164 lb/min
  • Application: Vapor Only
Safety Warning

Full Product Description

The Type SR, SRH, H High Capacity Safety Relief Valves are designed and constructed to meet the requirements of Section VIII ASME Boiler and Pressure Vessel Code and ANSI/ASHRAE 15 Code requirements and bear the ASME Code Symbol (UV). Safety Relief Valves should be used to protect each refrigeration system pressure vessel that can be isolated by valves. In many localities state or municipal codes govern selection and installation of Relief Valves. Employing proven principles of design, these Safety Relief Valves are highly reliable and dependable. Precision machined moving parts of stainless steel, and a PTFE disc prevent sticking due to corrosion or cold welding and assure valve opening at the set pressure long after installation. They are not suitable for corrosive ambient atmospheres such as chlorine, etc.

Markets:

• Industrial Refrigeration
• Commercial Refrigeration

Features and Benefits:

• ANSI/ASHRAE 15 Compliant
• Excellent Repeatability
• All Stainless Steel Internal Parts
• Unaffected by Vibration
• PTFE Seat
• Pressure Settings from 150 to 400 psi

Application:

• Compressor Packages
• Accumulator Vessels
• Receiver Vessels
• Anywhere overpressure protection is required

Related Documents

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Products Pressure Relief Setting (barg) Pressure Relief Setting (psig) Inlet Connection Outlet Connection Flow Capacity (SCFM Air) Valve Type
107031 10.3 150 1/2" 3/4" 130 SR1
107032 13.8 200 1/2" 3/4" 170 SR1
107033 17.2 250 1/2" 3/4" 210 SR1
107034 20.7 300 1/2" 3/4" 250 SR1
107035 24.1 350 1/2" 3/4" 290 SR1
107036 27.6 400 1/2" 3/4" 329 SR1
107037 10.3 150 1/2" 3/4" 246 SR2
107038 13.8 200 1/2" 1" 321 SR2
107039 17.2 250 1/2" 1" 397 SR2
107040 20.7 300 1/2" 1" 472 SR2
107041 24.1 350 1/2" 1" 547 SR2
107042 27.6 400 1/2" 1" 622 SR2
107043 10.3 150 3/4" 1-1/4" 377 SR3
107044 13.8 200 3/4" 1-1/4" 493 SR3
107045 17.2 250 3/4" 1-1/4" 608 SR3
107046 20.7 300 3/4" 1-1/4" 724 SR3
107047 24.1 350 3/4" 1-1/4" 839 SR3
107048 27.6 400 3/4" 1-1/4" 955 SR3
107049 10.3 150 3/4" 1-1/2" 490 SR4
107050 13.8 200 3/4" 1-1/2" 640 SR4
107051 17.2 250 3/4" 1-1/2" 791 SR4
107052 20.7 300 3/4" 1-1/2" 941 SR4
107053 24.1 350 3/4" 1-1/2" 1091 SR4
107054 27.6 400 3/4" 1-1/2" 1241 SR4
107055 10.3 150 1/2" 3/4" 463 SRH1
107056 13.8 200 1/2" 3/4" 605 SRH1
107057 17.2 250 1/2" 3/4" 746 SRH1
107058 20.7 300 1/2" 3/4" 888 SRH1
107059 24.1 350 1/2" 3/4" 1030 SRH1
107060 27.6 400 1/2" 3/4" 1172 SRH1
107061 10.3 150 1/2" 1" 463 SRH2
107062 13.8 200 1/2" 1" 605 SRH2
107063 17.2 250 1/2" 1" 746 SRH2
107064 20.7 300 1/2" 1" 888 SRH2
107065 24.1 350 1/2" 1" 1030 SRH2
107066 27.6 400 1/2" 1" 1172 SRH2
107067 10.3 150 3/4" 1" 463 SRH3
107068 13.8 200 3/4" 1" 605 SRH3
107069 17.2 250 3/4" 1" 746 SRH3
107070 20.7 300 3/4" 1" 888 SRH3
107071 24.1 350 3/4" 1" 1030 SRH3
107072 27.6 400 3/4" 1" 1172 SRH3
107487 12.1 175 3/4" 1-1/4" 435 SR3
107488 22.4 325 1/2" 1" 959 SRH2
107551 10.3 150 1" 1-1/4" 798 SRH4
107552 13.8 200 1" 1-1/4" 1043 SRH4
107553 17.2 250 1" 1-1/4" 1287 SRH4
107554 20.7 300 1" 1-1/4" 1532 SRH4
107555 24.1 350 1" 1-1/4" 1776 SRH4
107556 10.3 150 1-1/4" 1-1/4" 963 SRH5
107557 13.8 200 1-1/4" 1-1/4" 1258 SRH5
107558 17.2 250 1-1/4" 1-1/4" 1553 SRH5
107559 20.7 300 1-1/4" 1-1/4" 1848 SRH5
107560 24.1 350 1-1/4" 1-1/4" 2143 SRH5
107561 15.5 225 3/4" 1-1/4" 551 SR3
107569 12.1 175 1/2" 3/4" 534 SRH1
107570 15.5 225 1/2" 3/4" 676 SRH1
107571 19 275 1/2" 3/4" 817 SRH1
107572 22.4 325 1/2" 3/4" 959 SRH1
107573 25.9 375 1/2" 3/4" 1101 SRH1
107574 12.1 175 3/4" 1" 534 SRH3
107575 15.5 225 3/4" 1" 676 SRH3
107576 19 275 3/4" 1" 817 SRH3
107577 22.4 325 3/4" 1" 959 SRH3
107578 25.9 375 3/4" 1" 1101 SRH3
107606 12.1 175 1/2" 1" 284 SR2
107901 12.1 175 1/2" 3/4" 150 SR1
107902 11.4 165 3/4" 1" 506 SRH3
107903 18.3 265 3/4" 1" 789 SRH3
107904 19 275 1/2" 1" 817 SRH2
107946 15.5 225 1/2" 1" 676 SRH2
107948 19 275 1-1/4" 1-1/2" 1700 SRH5
107989 12.1 175 1" 1-1/4" 921 SRH4
108073 11 160 1/2" 3/4" 138 SR1
108092 24 348 1/2" 1" 1024 SRH2
108652 15.5 225 1-1/4" 1-1/2" 1405 SRH5
108689_1 12.1 175 1/2" 1" 534 SRH2
109065 17.9 260 3/4" 1" 775 SRH3
109109 12.4 180 1-1/4" 1-1/2" 1140 SRH5
109169 16.2 235 1-1/4" 1-1/2" 1464 SRH5
109170 18.3 265 1/2" 3/4" 789 SRH1
109200_1 16.2 235 1/2" 3/4" 198 SR1
109214_1 12.1 175 1-1/4" 1-1/2" 1111 SRH5
109302_1 12.4 180 3/4" 1-1/2" 580 SR4
109303_1 20 290 1-1/4" 1-1/2" 1789 SRH5
109383 23.4 340 1-1/4" 1-1/2" 2084 SRH4
109384 25 362 3/4" 1-1/4" 867 SRH4
109386 17.9 260 1" 1-1/4" 1336 SR1
109387_1 15.5 225 1" 1-1/4" 1165 SRH3
109389_1 15.5 225 1/2" 3/4" 190 SRH1
109639_1 14.8 214 3/4" 1" 644 SRH2
110251_1 15.9 230 1/2" 3/4" 690 SR1
110253 17.9 260 1/2" 1" 775 SR2
110548 19 275 1/2" 3/4" 230 SR2
110549 19 275 1/2" 1" 434 SRH4
110572 15.5 225 1/2" 1" 359 SR1
110580 22.4 325 1" 1-1/4" 1654 SRH4
110581 22.4 325 1/2" 3/4" 270 SRH4
110582 18.3 265 1" 1-1/4" 1361 SR4
110584 12.4 180 1" 1-1/4" 945 SRH3
111369 16.2 235 3/4" 1-1/2" 746 SRH2
112020 12.4 180 3/4" 1" 548 SRH5
112050 12.4 180 1/2" 1" 548 SR4
112101 18.3 265 1-1/4" 1-1/2" 1641 SR1
112424_1 15.9 230 1" 1 1/4" 1189 SRH4
112428 17.6 255 1" 2 1/4" 1312 SRH4
112433 17.6 255 1/2" 3/4" 676 SRH1
112489 19 275 1" 1 1/4" 1409 SRH4
112500 13.1 190 1" 1 1/4" 994 SRH4
112521 12.4 180 1/2" 1" 291 SR2

687PDC
687475