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United Brass Works 1" Blow Down Valve

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$111.55 - $142.49
{{resource("/ProductPage/Labels/List")}} $222.42 - $276.60

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Durable United Brass Valves.

Blow down valves are used on boilers for daily blow-off procedures. Blow-off allows particulate matter, rust and scale to leave the boiler which prolongs the life of the boiler. These valves open slowly to prevent damage to the boiler. The blow down procedure lasts about 3 minutes. Available in a variety of sizes. All sizes have 200 WSP.

Features

  • Prolongs life of boiler
  • Provides tight closure for blow-off procedure
  • Constructed to withstand frequent opening and closing
  • Available in a variety of sizes
  • Durable

Product Specifications

Brand: United Brass
Units: Each
Material: Bronze
Size / Dimension: 1"
Should a check valve be installed before or after the blow-down valve?
Anonymous
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A:
Nowhere in the boiler or power piping code does it call for a check valve to be placed in a blow down line. It also does not specify that you cannot. However, code does require that the blow down valves, both the quick and slow opening, be full flow so that flow in the line is not obstructed. Check valves, as a general rule, are restrictive. Therefore, if the blow down valves must be full flow installing a check valve in the same line would be defeat that purpose. Our recommendation would be for the customer to seek approval for the use of a check valve in the blow down piping from their local boiler inspector if they feel they must use one.
Staff
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Referring to valves, what does WOG and WSP mean?
Anonymous
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Some Valves carry two ratings: WOG and WSP. WOG stands for the water, oil, and gas rating for the valve and reflects the maximum pressure capability of the valve at 100 F. WSP stands for working steam pressure and reflects the maximum steam pressure rating for the valve at the highest temperature rating. The WOG rating is always higher than the WSP rating for a valve or fitting. Some valves are only carry WSP ratings as they would only be used with steam.
Staff
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How can I tell which size valve I need?
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The size of our valves are printed above the WSP rating on the valve.
Staff
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Why do some valves come with a WSP and WOG rating, and others just talk about the psi ranges?
Anonymous
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Some valves can be used on water, oil, and air (WOG) as well as steam. Steam is a more abrasive substance, so the WSP (working steam pressure) rating tends to be lower than the WOG rating. Some items, just as steam traps and steam pressure reducing valves are only used in conjunction with steam, so psi ranges are associated with these items.
Staff
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Do you carry and sell rebuilt valves?
Anonymous
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No, we do not sell any valves that have been rebuilt.
Staff
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What does PSI refer to?
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PSI is a unit of measurement. It stands for pounds per square inch.
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