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.

WEBSTONE -

Boiler Drain Valve

StyleModelPipe SizePrice (inc. GST)
A50674W1" SGD 67.27
A50672W1/2" SGD 39.53
A50673W3/4" SGD 60.73
WATTS -

BD-QT Series, Boiler Drain Valve Mnpt Brass

StyleModelInlet SizePipe SizePrice (inc. GST)
ABD-QT- 1/21/2"1/2" SGD 38.37
BBD-QT- 3/43/4"3/4" SGD 43.14
StyleModelConnection TypePipe SizePrice (inc. GST)
A102-004NLMPT x MPT3/4" SGD 29.25
A102-003NLMPT x MPT Male Hose1/2" SGD 26.08
APPROVED VENDOR -

Boiler Drain Valve Quarter Turn

StyleModelConnection TypePipe SizePrice (inc. GST)
AGGS-2VRP7Cup or MNPT x Hose1/2" SGD 18.05
AGGS-2VRP8Cup or MNPT x Hose3/4" SGD 18.38
BGGS-2VRP5FNPT x Hose1/2" SGD 19.44
BGGS-2VRP6FNPT x Hose3/4" SGD 20.49
C1APV6FNPT x MNPT3/4" x 1/2" SGD 20.66
C1APV5MNPT x Solder Cup1/2" SGD 23.53
StyleModelPipe SizePrice (inc. GST)
ABDC-0500-S1/2" SGD 13.91
ABDC-0750-S3/4" SGD 14.70
StyleModelPrice (inc. GST)
A3170004P SGD 64.14
A3170104P SGD 64.14
A3170004 SGD 64.14
A3170013 SGD 66.80
A3170104 SGD 64.14
APPROVED VENDOR -

Boiler Drain Valves

StyleModelPipe SizePrice (inc. GST)
A1CNR91/2" SGD 12.17
A1CNT13/4" SGD 12.63
GRAINGER -

Boiler Drain Valves

StyleModelPrice (inc. GST)
A20273 SGD 14.88
RFQ
B20271 SGD 14.49
RFQ
WATTS -

Boiler Drain Shutoffs

StyleModelMax. Temp.Body MaterialBody PatternMfr. SeriesOutlet SizeBody StyleInlet ConnectionInlet SizePrice (inc. GST)
ABD-1C 1/2 FGD180° FBrassAngle---Male Threaded1/2" SGD 40.92
RFQ
BBD5 1/2180° FBrassStraightBD3/4"StraightMale Threaded1/2" SGD 26.31
CBD3F 1/2180° FBrassAngleBD3/4"AngleFemale Threaded1/2" SGD 27.52
DLFBD-1C 1/2180° FBrassAngleLFBD1/2"AngleMale Threaded1/2" SGD 27.18
BLFBD5 1/2180° FBrassStraightLFBD1/2"StraightMale Threaded1/2" SGD 33.80
CLFBD3F 1/2180° FBrassAngleLFBD1/2"AngleFemale Threaded1/2" SGD 35.66
ELFBD-2C 3/4180 Degree FBrass-LFBD3/4"Angle-3/4" SGD 31.02
FBD6 3/4180 Degree FBrass-BD3/4"Straight-3/4" SGD 22.54
GBD2 3/4180 Degree FBrass-BD3/4"Angle-3/4" SGD 30.68
HBD4F 3/4180 Degree FBrass-BD3/4"Angle-3/4" SGD 28.76
GLFBD2 3/4180 Degree FBrass-LFBD3/4"Angle-3/4" SGD 40.06
FLFBD6 3/4180 Degree FBrass-LFBD3/4"Straight-3/4" SGD 29.44
HLFBD4F 3/4180 Degree FBrass-LFBD3/4"Angle-3/4" SGD 36.93
ILFBD-QT 1/2250° FForged BrassAngleLFBD-QT1/2"AngleMale Threaded1/2" SGD 50.09
JLFBD-QT 3/4250 Degree FForged Brass-LFBD-QT3/4"Angle-3/4" SGD 58.82
StyleModelPrice (inc. GST)
A3160904 SGD 61.79
A3160804 SGD 58.44
A3160813S SGD 58.44
A3160713 SGD 53.93
A3160813 SGD 58.44
A3161013 SGD 60.12
A3160913 SGD 57.76
A3161204 SGD 64.14
A3161104 SGD 64.14
A3161004 SGD 61.79
A3161202 SGD 74.08
A3161213 SGD 61.14
APOLLO VALVES -

Boiler Drain Valves

StyleModelPrice (inc. GST)
A31LF20204 SGD 67.58
A31LF21204 SGD 69.25
A31LF50104 SGD 73.61

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.

Working Mechanism

  • The valve has a handle or lever that can be turned to open it and release the water & sediments.
  • When the valve is open, the water & sediments can flow out of the boiler and into a drain or other appropriate disposal area.
  • Once the water and sediments have drained, the valve can be closed to seal the system again.

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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