Boiler Drain Valves | Raptor Supplies Singapore

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 63.37
A50672W1/2" SGD 37.25
A50673W3/4" SGD 57.23
StyleModelConnection TypePipe SizePrice (inc. GST)
A102-004NLMPT x MPT3/4" SGD 25.76
A102-003NLMPT x MPT Male Hose1/2" SGD 22.94
StyleModelInlet SizeMax. Temp.Outlet SizePrice (inc. GST)
ALFBD-QT 1/21/2"250° F1/2" SGD 50.09
ALFBD-QT 3/43/4"250 Degree F3/4" SGD 58.82
WATTS -

BD Series Boiler Drain Valves

StyleModelBody PatternBody StyleInlet ConnectionInlet SizeInlet TypeMax. Temp.Price (inc. GST)
ABD6 3/4-Straight-3/4"Male Threaded180 Degree F SGD 22.54
BBD4F 3/4-Angle-3/4"Female Threaded180 Degree F SGD 28.76
CBD2 3/4-Angle-3/4"Male Threaded180 Degree F SGD 30.68
DBD3F 1/2AngleAngleFemale Threaded1/2"Female Threaded180° F SGD 27.52
EBD5 1/2StraightStraightMale Threaded1/2"Male Threaded180° F SGD 26.31
WATTS -

LFBD Series Boiler Drain Valves

StyleModelBody PatternBody StyleInlet ConnectionInlet SizeInlet TypeMax. Temp.Outlet SizePrice (inc. GST)
ALFBD-2C 3/4-Angle-3/4"Male Threaded180 Degree F3/4" SGD 31.02
BLFBD2 3/4-Angle-3/4"Male Threaded180 Degree F3/4" SGD 40.06
CLFBD6 3/4-Straight-3/4"Male Threaded180 Degree F3/4" SGD 29.44
DLFBD4F 3/4-Angle-3/4"Female Threaded180 Degree F3/4" SGD 36.93
ELFBD-1C 1/2AngleAngleMale Threaded1/2"Male Threaded180° F1/2" SGD 27.18
FLFBD3F 1/2AngleAngleFemale Threaded1/2"Female Threaded180° F1/2" SGD 35.66
GLFBD5 1/2StraightStraightMale Threaded1/2"Male Threaded180° F1/2" SGD 33.80
StyleModelInlet SizePipe SizePrice (inc. GST)
ABD-QT 1/21/2"1/2" SGD 34.10
ABD-QT 3/43/4"3/4" SGD 38.35
APOLLO VALVES -

Boiler Drain Valves

StyleModelPrice (inc. GST)
A31LF21204 SGD 66.78
A31LF20204 SGD 64.88
B31LF50104 SGD 71.63
StyleModelPrice (inc. GST)
A3170104 SGD 61.09
A3170004P SGD 59.97
A3170104P SGD 61.09
A3170004 SGD 61.09
A3170013 SGD 64.02
APOLLO VALVES -

31-600 Series, Boiler Drain Valves

StyleModelPrice (inc. GST)
A3161204 SGD 64.14
A3161004 SGD 58.44
A3160904 SGD 58.44
A3160804 SGD 53.72
A3160813S SGD 54.75
B3160713 SGD 40.08
A3160813 SGD 54.75
A3161013 SGD 56.59
A3160913 SGD 57.76
B3161104 SGD 50.19
A3161202 SGD 72.11
A3161213 SGD 56.65
GRAINGER -

Boiler Drain Valves

StyleModelPrice (inc. GST)
A20273 SGD 13.23
B20271 SGD 12.88
APPROVED VENDOR -

Boiler Drain Valves

StyleModelPipe SizePrice (inc. GST)
A102-5031/2" SGD 10.71
A102-5043/4" SGD 11.11
APPROVED VENDOR -

Boiler Drain Valve Quarter Turn

StyleModelConnection TypePipe SizePrice (inc. GST)
A6PEA0Cup or MNPT x Hose1/2" SGD 15.91
A6PEA2Cup or MNPT x Hose3/4" SGD 16.18
B6PEA1FNPT x Hose1/2" SGD 17.11
B6PEA3FNPT x Hose3/4" SGD 18.04
C1APV6FNPT x MNPT3/4" x 1/2" SGD 18.18
C102-053HNMNPT x Solder Cup1/2" SGD 20.77
SPEARS VALVES -

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

ModelItemPrice (inc. GST)
BDC-0750-SAE6NRM SGD 13.07
NIBCO -

Boiler Drain, Quarter-Turn, FIP to Hose

ModelItemPrice (inc. GST)
NB64JH8CA2EBX SGD 28.70
NIBCO -

Boiler Drain, Quarter-Turn, FIP to Hose

ModelItemPrice (inc. GST)
NB64JH6CA2EBW SGD 22.72
NIBCO -

Boiler Drain, Multi-Turn, Cup to Hose

ModelItemPrice (inc. GST)
N64F0P8CA2EBM SGD 61.35
NIBCO -

Boiler Drain, Multi-Turn, Cup to Hose

ModelItemPrice (inc. GST)
N64F0P6CA2EBL SGD 60.30
NIBCO -

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

ModelItemPrice (inc. GST)
NB64MH8BZ9DEX SGD 35.15
NIBCO -

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

ModelItemPrice (inc. GST)
N64N008BQ4UYN SGD 44.30
NIBCO -

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

ModelItemPrice (inc. GST)
N64N006BQ4UYL SGD 49.53
NIBCO -

Boiler Drain, Multi-Turn, FIP to Hose

ModelItemPrice (inc. GST)
N64K008BQ4UYK SGD 53.82
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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.

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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