AQUATROL SAFETY VALVES Relief Valves

Adjustable relief and safety relief valves for controlling or limiting the fluid pressure / flow by keeping the pressure build-up in check on an interval basis; ideal for installation in high-pressure pipelines, supply lines and production lines. Available in brass, bronze and brass-bronze alloy body materials

Filter

Aquatrol adjustable relief and safety relief valves are designed for controlling or limiting the fluid pressure / flow by keeping the pressure build-up in check on an interval basis. They are ideal for installation in high-pressure pipelines, supply lines and production lines.

AQUATROL SAFETY VALVES -

89 Series, Bronze Safety Relief Valve

StyleModelFactory Set PressureInlet SizeOutlet SizeOverall HeightPrice (inc. GST)
A89A2-1515 psi1/2"3/4"5.875" SGD 259.35
A89C2-1515 psi1"1.25"7.5" SGD 323.18
A89D2-1515 psi1.25"1.5"8.5" SGD 429.48
A89E2-1515 psi1.5"2"9.75" SGD 497.50
A89F2-1515 psi2"2.5"11.125" SGD 744.12
A89B2-1515 psi3/4"1"5" SGD 280.67
A89F2-2525 psi2"2.5"11.125" SGD 744.12
A89D2-2525 psi1.25"1.5"8.5" SGD 429.48
A89E2-2525 psi1.5"2"9.75" SGD 497.50
A89B2-2525 psi3/4"1"5" SGD 280.67
A89C2-2525 psi1"1.25"7.5" SGD 323.18
A89A2-2525 psi1/2"3/4"5.875" SGD 259.35
A89F2-5050 psi2"2.5"11.125" SGD 744.12
A89C2-5050 psi1"1.25"7.5" SGD 323.18
A89E2-5050 psi1.5"2"9.75" SGD 497.50
A89B2-5050 psi3/4"1"5" SGD 280.67
A89D2-5050 psi1.25"1.5"8.5" SGD 429.48
A89A2-5050 psi1/2"3/4"5.875" SGD 259.35
A89F2-7575 psi2"2.5"11.125" SGD 744.12
A89E2-7575 psi1.5"2"9.75" SGD 497.50
A89B2-7575 psi3/4"1"5" SGD 280.67
A89A2-7575 psi1/2"3/4"5.875" SGD 259.35
A89D2-7575 psi1.25"1.5"8.5" SGD 429.48
A89C2-7575 psi1"1.25"7.5" SGD 323.18
A89F2-100100 psi2"2.5"11.125" SGD 744.12
StyleModelFactory Set PressureInlet SizePrice (inc. GST)
A55A-2525 psi1/4" SGD 77.08
A55B-2525 psi3/8" SGD 86.44
A55A-5050 psi1/4" SGD 77.08
A55B-5050 psi3/8" SGD 82.38
AQUATROL SAFETY VALVES -

69 Series Bronze Adjustable Relief Valve

Aquatrol 69 Series relief valves (field-adjustable) are used for controlling or limiting the system pressure to protect pumps, tanks, hydraulic equipment and pipelines. These units feature a bronze body with excellent ductility and corrosion resistance and manual adjustment of the relief pressure set-point by changing the force exerted by the stainless-steel spring. They come equipped with a hex cap for shielding the complete assembly and dual-lapped metal seating for eliminating leakages. Choose from an extensive range of these safety relief valves available in factory set pressures ranging between 15 & 300 psi on Raptor Supplies.

StyleModelOverall HeightDisc MaterialFactory Set PressurePressure RangeSeat MaterialInlet SizeInlet TypeItemPrice (inc. GST)
A69A1A9M3U1-------Relief Valve SGD 968.44
RFQ
B69A1S-505.875"Bronze50 psi0 to 50 psi316 Stainless Steel1/2"MNPTAdjustable Relief Valve SGD 476.22
B69A1S-2005.875"316 Stainless Steel200 psi151 to 200 psi316 Stainless Steel1/2"MNPTAdjustable Relief Valve SGD 476.22
B69A1S-2505.875"316 Stainless Steel250 psi201 to 250 psi316 Stainless Steel1/2"MNPTAdjustable Relief Valve SGD 476.22
B69A1S-3005.875"316 Stainless Steel300 psi251 to 300 psi316 Stainless Steel1/2"MNPTAdjustable Relief Valve SGD 476.22
B69A1S-4005.875"316 Stainless Steel400 psi301 to 400 psi316 Stainless Steel1/2"MNPTAdjustable Relief Valve SGD 476.22
B69A1S-6005.875"316 Stainless Steel600 psi401 to 600 psi316 Stainless Steel1/2"MNPTAdjustable Relief Valve SGD 476.22
B69A1-3005.875"Bronze300 psi251 to 300 psiBronze1/2"MNPTAdjustable Relief Valve SGD 264.94
B69A1-2505.875"Bronze250 psi201 to 250 psiBronze1/2"MNPTAdjustable Relief Valve SGD 264.94
B69A1-2005.875"Bronze200 psi151 to 200 psiBronze1/2"MNPTAdjustable Relief Valve SGD 264.94
B69A1-1505.875"Bronze150 psi126 to 150 psiBronze1/2"MNPTAdjustable Relief Valve SGD 264.94
B69A1S-1005.875"316 Stainless Steel100 psi51 to 100 psi316 Stainless Steel1/2"MNPTAdjustable Relief Valve SGD 476.22
B69A1-1005.875"Bronze100 psi76 to 100 psiBronze1/2"MNPTAdjustable Relief Valve SGD 264.94
B69A1-755.875"Bronze75 psi51 to 75 psiBronze1/2"MNPTAdjustable Relief Valve SGD 264.94
B69A1-505.875"Bronze50 psi31 to 50 psiBronze1/2"MNPTAdjustable Relief Valve SGD 264.94
B69A1-305.875"Bronze30 psi16 to 30 psiBronze1/2"MNPTAdjustable Relief Valve SGD 264.94
B69A1-1255.875"Bronze125 psi101 to 125 psiBronze1/2"MNPTAdjustable Relief Valve SGD 264.94
B69A1-155.875"Bronze15 psi0 to 15 psiBronze1/2"MNPTAdjustable Relief Valve SGD 264.94
B69A1S-1505.875"316 Stainless Steel150 psi101 to 150 psi316 Stainless Steel1/2"MNPTAdjustable Relief Valve SGD 476.22
B69B1-306"Bronze30 psi16 to 30 psiBronze3/4"MNPTAdjustable Relief Valve SGD 276.42
B69B1S-1006"316 Stainless Steel100 psi51 to 100 psi316 Stainless Steel3/4"MNPTAdjustable Relief Valve SGD 531.50
B69B1S-1506"316 Stainless Steel150 psi101 to 150 psi316 Stainless Steel3/4"MNPTAdjustable Relief Valve SGD 531.50
B69B1-3006"Bronze300 psi251 to 300 psiBronze3/4"MNPTAdjustable Relief Valve SGD 276.42
B69B1-2506"Bronze250 psi201 to 250 psiBronze3/4"MNPTAdjustable Relief Valve SGD 276.42
B69B1-2006"Bronze200 psi151 to 200 psiBronze3/4"MNPTAdjustable Relief Valve SGD 276.42
AQUATROL SAFETY VALVES -

130 Series Brass Safety Relief Valve

Aquatrol safety relief valves are designed for applications in compressors, sterilisers, autoclaves, gas and steam lines, tanks and steam cleaners. These durable Aquatrol valves are made of brass and feature a bronze-plated lift lever, precision-lapped metal-to-metal seating, stainless-steel springs and fixed blow-down. They can operate at temperatures ranging from 0 to 406 degrees Fahrenheit and can withstand a maximum pressure of 200 psi. These valves are available in FNPT / MNPT inlet and MNPT / vented outlet variants.

StyleModelFactory Set PressureInlet SizeInlet TypeOutlet TypePrice (inc. GST)
A130B-1515 psi3/8"MNPTVented SGD 127.75
A130A-1515 psi1/4"MNPTVented SGD 123.67
A130C-1515 psi1/2"MNPTVented SGD 123.32
A130A-2525 psi1/4"FNPTMNPT SGD 123.67
A130B-2525 psi3/8"MNPTVented SGD 127.75
A130C-2525 psi1/2"MNPTVented SGD 123.32
A130C-5050 psi1/2"MNPTVented SGD 123.32
A130A-5050 psi1/4"MNPTVented SGD 123.67
A130B-5050 psi3/8"MNPTVented SGD 127.75
A130C-100100 psi1/2"MNPTVented SGD 123.32
A130B-100100 psi3/8"MNPTVented SGD 127.75
A130A-100100 psi1/4"MNPTVented SGD 123.67
A130C-125125 psi1/2"MNPTVented SGD 123.32
A130B-125125 psi3/8"MNPTVented SGD 127.75
A130A-125125 psi1/4"MNPTVented SGD 123.67
A130B-150150 psi3/8"MNPTVented SGD 127.75
A130A-150150 psi1/4"MNPTVented SGD 123.67
A130C-150150 psi1/2"MNPTVented SGD 123.32
A130A-200200 psi1/4"MNPTVented SGD 123.67
A130C-200200 psi1/2"MNPTVented SGD 123.32
A130B-200200 psi3/8"MNPTVented SGD 127.75
AQUATROL SAFETY VALVES -

740 Series Brass/Bronze/Stainless Steel Safety Relief Valve

Aquatrol 740 Series safety relief valves are designed to open when the pressure exceeds the stress limits and prevent pumps and pipelines from fire accidents or system failure. These units feature a brass / bronze body for strength, ductility, malleability and corrosion resistance and a full-nozzle design flanged to the pressurised system. They are further integrated with a stainless-steel disc for enhancing seating tightness and preventing flow under ambient operating conditions, and an adjustable nozzle ring for controlling the fluid exit. They meet ASME Section VIII standards and are ideal for air / gas, liquid and steam applications. Choose from a wide range of these safety relief valves available in factory set pressures ranging from 15 to 300 psi on Raptor Supplies.

StyleModelFactory Set PressureInlet SizeOutlet SizeOverall HeightOverall LengthTest LeverPrice (inc. GST)
A740EF-M2L-1515 psi1"1.25"8.125"8.125"No SGD 481.52
B740GF-M1A-1515 psi2"2"10.25"10.25"Yes SGD 1092.80
A740GF-M2L-1515 psi2"2"10.625"10.625"No SGD 1199.74
B740EF-M1A-1515 psi1"1.25"8.125"8.125"Yes SGD 481.56
B740DC-M1A-1515 psi1/2"3/4"7.375"7.375"Yes SGD 371.39
A740FG-M2L-1515 psi1.5"1.5"9.25"9.25"No SGD 683.90
B740FH-M1A-1515 psi1.25"1.5"9.25"9.25"Yes SGD 579.48
A740FH-M2L-1515 psi1.25"1.5"9.25"9.25"No SGD 579.79
B740DF-M1A-1515 psi3/4"1"7.375"7.375"Yes SGD 420.21
A740DF-M2L-1515 psi3/4"1"7.375"7.375"No SGD 397.26
B740FG-M1A-1515 psi1.5"1.5"9.25"9.25"Yes SGD 694.15
A740DC-M2L-1515 psi1/2"3/4"7.375"7.375"No SGD 371.12
B740DC-M1A-2525 psi1/2"3/4"7.375"7.375"Yes SGD 371.39
B740FH-M1A-2525 psi1.25"1.5"9.25"9.25"Yes SGD 579.48
B740EF-M1A-2525 psi1"1.25"8.125"8.125"Yes SGD 481.56
A740DC-M2L-2525 psi1/2"3/4"7.375"7.375"No SGD 371.12
B740DF-M1A-2525 psi3/4"1"7.375"7.375"Yes SGD 420.21
A740FH-M2L-2525 psi1.25"1.5"9.25"9.25"No SGD 579.79
A740DF-M2L-2525 psi3/4"1"7.375"7.375"No SGD 397.26
A740GF-M2L-2525 psi2"2"10.625"10.625"No SGD 1199.74
B740GF-M1A-2525 psi2"2"10.25"10.25"Yes SGD 1092.80
A740FG-M2L-2525 psi1.5"1.5"9.25"9.25"No SGD 683.90
B740FG-M1A-2525 psi1.5"1.5"9.25"9.25"Yes SGD 694.15
A740EF-M2L-2525 psi1"1.25"8.125"8.125"No SGD 481.52
A740GF-M2L-3030 psi2"2"10.625"10.625"No SGD 1199.74
AQUATROL SAFETY VALVES -

88 Series Bronze Safety Relief Valve

StyleModelFactory Set PressureInlet SizeOutlet SizeOverall HeightPrice (inc. GST)
A88F2-1515 psi2"2.5"11.125" SGD 756.91
A88D2-1515 psi1.25"1.5"8.5" SGD 438.01
A88E2-1515 psi1.5"2"9.75" SGD 510.25
A88A2-1515 psi1/2"3/4"6.5" SGD 263.63
A88B2-1515 psi3/4"1"6.875" SGD 284.85
A88C2-1515 psi1"1.25"7.5" SGD 327.38
A88B2-2525 psi3/4"1"6.875" SGD 284.85
A88F2-2525 psi2"2.5"11.125" SGD 756.91
A88C2-2525 psi1"1.25"7.5" SGD 327.38
A88A2-2525 psi1/2"3/4"6.5" SGD 263.63
A88E2-2525 psi1.5"2"9.75" SGD 510.25
A88C2-5050 psi1"1.25"7.5" SGD 327.38
A88B2-5050 psi3/4"1"6.875" SGD 284.85
A88D2-5050 psi1.25"1.5"8.5" SGD 438.01
A88A2-5050 psi1/2"3/4"6.5" SGD 263.63
A88E2-5050 psi1.5"2"9.75" SGD 510.25
A88F2-5050 psi2"2.5"11.125" SGD 756.91
A88D2-7575 psi1.25"1.5"8.5" SGD 438.01
A88C2-7575 psi1"1.25"7.5" SGD 327.38
A88A2-7575 psi1/2"3/4"6.5" SGD 263.63
A88B2-7575 psi3/4"1"6.875" SGD 284.85
A88F2-7575 psi2"2.5"11.125" SGD 756.91
A88E2-7575 psi1.5"2"9.75" SGD 510.25
A88C2-100100 psi1"1.25"7.5" SGD 327.38
A88B2-100100 psi3/4"1"6.875" SGD 284.85

Features

  • They are easily adjusted in the field by removing the hex cap, making them ideal for pressure relief, liquid relief, bypass and over-protection.
  • These units can be easily cleaned and maintained by simply removing the bonnet.
  • Selected models have a bronze disc lapped into position to minimise leakage.
  • They are available in brass, bronze and brass-bronze alloy body materials.

Working Mechanism

  • Some pressure escapes through the water pipes that connect to the water heater.
  • If it cannot, the pressure-relief valve is activated.
  • The valve reduces the pressure to safe levels by releasing some of the hot water and air.

Standards and Approvals

  • ISO 9001:2015
  • CE
  • CRN
  • ASME

Frequently Asked Questions

How do you adjust a water pressure relief valve?

Many valves are equipped with a nut, screw or knob that allows you to adjust them. Turning the screw or knob clockwise raises the water pressure while turning it counter-clockwise lowers it.

Which series of valves are compatible for use with boilers?

Aquatrol 560/570 Series valves are high-capacity safety valves that are used for boilers, piping lines and vessel protection. They are intended for heavy-duty industrial applications.

Do these relief valves come calibrated?

Aquatrol 69 Series liquid relief valves are calibrated based on a range of flow rates (GPM) versus seat size and set pressure.

We are here to help!

Looking for a part not listed here?