Boiler Drain Valves

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Boiler drain valves are located at the bottom of the boiler and allow water & sediments to be drained out of the boiler to prevent damage or clogging of the system. They are ideal for the chemical, pharmaceutical, paint and cement industries.

StyleModelMPNPrice (inc. VAT)
A31700043170004£40.26
A3170004P3170004P£39.52
A31700133170013£42.19
A31701043170104£40.26
A3170104P3170104P£40.26
APOLLO VALVES -

Boiler Drain Valves

StyleModelMPNPrice (inc. VAT)
A31LF2020431LF20204£42.76
A31LF2120431LF21204£44.01
B31LF5010431LF50104£47.21
WATTS -

BD Series Boiler Drain Valves

StyleModelInlet SizeInlet ConnectionBody StyleBody PatternBody MaterialOutlet SizeMax. PressureLeadPrice (inc. VAT)
ABD3F 1/21/2"Female ThreadedAngleAngleBrass3/4"200 psiPresent£18.14
BBD5 1/21/2"Male ThreadedStraightStraightBrass3/4"200 psiPresent£17.34
CBD2 3/43/4"Male ThreadedAngle-Brass3/4"200 psiPresent£20.22
DBD4F 3/43/4"Female ThreadedAngle-Brass3/4"200 psiPresent£18.95
EBD6 3/43/4"Male ThreadedStraight-Brass3/4"200 psiPresent£14.85
WATTS -

LFBD-QT Series Boiler Drain Shutoffs

StyleModelInlet SizeOutlet SizeBody MaterialInlet ConnectionMax. PressureBody StyleLeadMax. Water PressurePrice (inc. VAT)
ALFBD-QT 1/21/2"1/2"Forged BrassMale Threaded200 psiAngleNot Present9999 psi£33.01
BLFBD-QT 3/43/4"3/4"Forged BrassMale Threaded200 psiAngleNot Present9999 psi£38.76
APPROVED VENDOR -

Boiler Drain Valve Quarter Turn

StyleModelOpen LengthBody MaterialMax. PressureMax. Fluid Temp.Price (inc. VAT)
A6PEA32 1/4"Brass125 psi180°F£11.89
B102-053HN2 5/8"Brass125 psi180°F£13.69
B1APV62 5/8"Brass125 psi180°F£11.98
C6PEA22 5/8"Brass125 psi180°F£10.66
A6PEA12.188"Brass125 psi180°F£11.28
C6PEA02.562"Brass125 psi180°F£10.48
WATTS -

LFBD Series Boiler Drain Valves

StyleModelInlet SizeInlet ConnectionOutlet SizeBody StyleBody PatternBody MaterialMax. PressureLeadPrice (inc. VAT)
ALFBD3F 1/21/2"Female Threaded1/2"AngleAngleBrass200 psiNot Present£23.50
BLFBD-1C 1/21/2"Male Threaded1/2"AngleAngleBrass200 psiNot Present£17.91
CLFBD5 1/21/2"Male Threaded1/2"StraightStraightBrass200 psiNot Present£22.28
DLFBD2 3/43/4"Male Threaded3/4"Angle-Brass200 psiNot Present£26.40
ELFBD-2C 3/43/4"Male Threaded3/4"Angle-Brass200 psiNot Present£20.44
FLFBD6 3/43/4"Male Threaded3/4"Straight-Brass200 psiNot Present£19.40
GLFBD4F 3/43/4"Female Threaded3/4"Angle-Brass200 psiNot Present£24.34
GRAINGER -

Boiler Drain Valves

StyleModelMPNPrice (inc. VAT)
A2027120271£8.49
B2027320273£8.72
APOLLO VALVES -

31-600 Series, Boiler Drain Valves

StyleModelMPNPrice (inc. VAT)
A31607133160713£26.41
B31608043160804£35.40
B31608133160813£36.08
B3160813S3160813S£36.08
B31609043160904£38.52
B31609133160913£38.07
B31610043161004£38.52
B31610133161013£37.29
A31611043161104£33.08
B31612023161202£47.52
B31612043161204£42.27
B31612133161213£37.33
StyleModelBody MaterialMax. PressurePrice (inc. VAT)
A102-003NLBrass125 psi£15.12
A102-004NLBrass125 psi£16.98
WEBSTONE -

Boiler Drain Valve

StyleModelOpen LengthBody MaterialMax. PressureMax. Fluid Temp.Price (inc. VAT)
A50672W3.188"Low Lead Brass600 psi WOG350°F£24.55
A50674W3.812"Low Lead Brass600 psi WOG350°F£41.76
A50673W3.812"Low Lead Brass600 psi WOG350°F£37.72
APPROVED VENDOR -

Boiler Drain Valves

StyleModelBody MaterialMax. PressureMax. Fluid Temp.Open LengthPrice (inc. VAT)
A102-503Celcon150 psi180°F4 3/8"£7.06
A102-504Celcon150 psi180°F4 3/8"£7.32
WATTS -

BD-QT Series Boiler Drain Valves

StyleModelInlet SizeOpen LengthBody MaterialInlet ConnectionOutlet SizeMax. PressureBody StyleLeadPrice (inc. VAT)
ABD-QT 1/21/2"3 3/8"BrassMale Threaded3/4"200 psiAnglePresent£22.47
BBD-QT 3/43/4"4 1/8"BrassMale Threaded3/4"200 psiAnglePresent£25.27
SPEARS VALVES -

Boiler Drain Valve, Hub x MHT, 3/4 Size, CPVC

ModelItemPrice (inc. VAT)
BDC-0750-SAE6NRM£8.61
NIBCO -

Boiler Drain, Multi-Turn, Copper or Male Threads to Hose

ModelItemPrice (inc. VAT)
N64N006BQ4UYL£32.64
NIBCO -

Boiler Drain, Quarter-Turn, Cup or MIP Threads to Hose

ModelItemPrice (inc. VAT)
NB64MH6CA2EBY£18.75
NIBCO -

Boiler Drain, Multi-Turn, Copper or Male Threads to Hose

ModelItemPrice (inc. VAT)
N64N008BQ4UYN£29.19
NIBCO -

Boiler Drain, Multi-Turn, FIP to Hose

ModelItemPrice (inc. VAT)
N64K008BQ4UYK£35.47
NIBCO -

Boiler Drain, Multi-Turn, FIP to Hose

ModelItemPrice (inc. VAT)
N64K006BQ4UYJ£32.64
NIBCO -

Boiler Drain, Quarter-Turn, FIP to Hose

ModelItemPrice (inc. VAT)
NB64JH8CA2EBX£18.91
NIBCO -

Boiler Drain, Quarter-Turn, FIP to Hose

ModelItemPrice (inc. VAT)
NB64JH6CA2EBW£14.97
NIBCO -

Boiler Drain, Multi-Turn, Cup to Hose

ModelItemPrice (inc. VAT)
N64F0P8CA2EBM£40.43
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Boiler Drain Valves

Boiler drain valves, also known as drain cocks, are designed for use with boilers, water heaters and storage tanks to drain water from a plumbing or heating system. Raptor Supplies offer a wide range of these drain valves from brands like Watts, Proline and Webstone. These valves feature a full-flow design with a maximum pressure rating of 125 psi WOG. Boiler drain valves from Watts are ideal for use in hydronic heating systems and feature brass construction with 3/4 inch hose thread connection on the outlet. They are further equipped with an adjustable Teflon stem packing for providing positive shut-off and an aluminium quarter-turn tee handle for manual control. Choose from a wide variety of these drain valves available in brass, celcon(R), CPVC, forged brass and low-lead brass body materials, on Raptor Supplies.

Frequently Asked Questions

What is the difference between a boiler drain valve and a boiler blowdown valve?

A boiler drain valve releases water and sediments accumulated in the bottom of a steam boiler while the boiler blowdown valve, on the other hand, releases water containing high levels of dissolved solids.

How to avoid backflow?

Boiler drain valves can be fitted with a backflow prevention device to prevent water from flowing back into the boiler.

How can I prevent my boiler drain valve from freezing in cold weather?

If your boiler is located in an unheated space or in an area where the temperature can drop below freezing, the water in the drain valve can freeze. To prevent this, make sure that your boiler is insulated and that the drain valve is located in a location that is protected from the cold.

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