Boiler house

Local regulations may restrict the use of this product to below the conditions quoted.

In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2016

Bottom blowdown systems

TI-P405-51

AB Issue 1

BBV

Automatic or Manually Actuated

Boiler Blowdown Valves DN15 to DN65

Description

The BBV is specifically designed for the removal of suspended/deposited solids and water from the bottom of steam boilers.

The BBV is available in air/water actuated and manual versions. The air/water-actuated version is supplied with a manual hand lever.

The valve is spring-to-close on power failure and the manual version can easily be upgraded to an automatic version.

When used with a Spirax Sarco blowdown controller the automatic version provides timed control of blowdown, ensuring that the

recommended blowdown occurs with the minimum of heat loss and avoids duplication and omissions.

The valve can be fitted with a mechanical switchbox. This can be linked to the blowdown controller or a BMS system to indicate when the

valve has not closed.

Principal features:

-

Easily upgraded from manual to automatic operation.

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Dedicated self-adjusting and self-cleaning spindle seals.

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Engineered for the specific application of bottom blowdown.

-

Flow pressure assists closing.

Available types of boiler blowdown valve:

Air / water pneumatically

actuated supplied with a

manual actuation lever

Manually actuated complete

with a manual actuation lever

BBV43PN/M

BBV63PN/M

BBV83PN/M

BBV43 M

BBV63 M

BBV83 M

Steel body

Stainless steel body

Alloy steel body

Steel body

Stainless steel body

Alloy steel body

Please note: All of the 'M' versions can be automated to ' PN/M'.

Optional extras:

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Automatic bottom blowdown timer controller.

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Mechanical switch (with mounting kit).

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Pneumatic actuator upgrade kit.

-

Physical lock kit

Standards

This product range fully complies with the requirements of the European

Pressure Equipment Directive 97 / 23 / EC.

Certification

This product is available with material certification to EN 10204 3.1.

Note: All certification / inspection requirements must be stated at the

time of order placement.

Size and pipe connections:

DN15, DN20, DN25, DN32, DN40, DN50 and DN65

1⁄2", 3⁄4", 1", 11⁄4", 11⁄2", 2" and 21⁄2"

Flanged EN 1092 PN40, PN63 and PN100

Flanged ASME 300 and ASME 600

Other available options:

Butt weld

Socket weld

JIS / KS 30 and JIS / KS 40

For alternative connections to those stated above please contact Spirax Sarco.

DN15

BBV_3 PN/M

shown

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