Control valves

Pressure reducing/surplussing valves

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TI-P107-01

CH Issue 10

DP163, DP163G and DP163Y

Pilot Operated

Pressure Reducing Valves with Stainless Steel Bodies

Description

The DP163, DP163G and DP163Y pilot operated pressure reducing valves have been manufactured using stainless steel.

Available types

DP163

Suitable for steam applications

DP163G Is a soft seal version available for compressed air and inert industrial gases. Note: It is not recommended for oxygen service.

DP163Y Having a lower rate pressure control spring is suitable for steriliser / autoclave applications

Standards

This product fully complies with the requirements of the European Pressure Equipment Directive 97 / 23 / EC and carries the

mark when

so required.

Certification

This product is available with certification to EN 10204 3.1. Note: All certification / inspection requirements must be stated at the time of

order placement.

Sizes and pipe connections

DN15LC - Low Capacity version, DN15, DN20, DN25, DN32, DN40, DN50 and DN80.

Standard flanges:

EN 1092 PN25 and PN40, BS 10 Table 'J' and ASME (ANSI) 300.

Available on request: ASME (ANSI) 150 and JIS 20.

Cert. No. LRQ 0963008

ISO 9001

Pressure / temperature limits

Kv values

The Kv maximum values shown below are full capacities and

should be used for safety valve sizing purposes only.

DN15LC DN15 DN20 DN25 DN32 DN40 DN50 DN80

1.0

2.8

5.5

8.1

12.0

17.0

28.0

64.0

For conversion: Cv (UK) = Kv x 0.963

Cv (US) = Kv x 1.156

Note: Where the internal balance pipe is used the valve capacity

will be reduced.

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The product must not be used in this region.

A-D-E Flanged EN 1092 PN40, BS 10 Table J and

ASME (ANSI) 300.

A-B-C Flanged ASME (ANSI) 150.

F-G DP163G limited to 120°C @ 26 bar g.

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F

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Pressure bar g

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Note: Two colour coded pressure adjustment springs are

available for the following downstream pressure ranges:

Red

0.2 bar g to 17 bar g

Grey 16.0 bar g to 21 bar g

A-D-E

A-B-C

Yellow 0.2 bar g to 3.0 bar g (DP163Y only)

Body design conditions

PN40

36.4 bar g @ 20°C

18.9 bar g @ 20°C

250°C @ 24 bar g

-10°C

25 bar g

14 bar g

250°C @ 24 bar g

250°C @ 12.1 bar g

0°C

Note: For lower operating temperatures consult Spirax Sarco

A-D-E

25 bar g

A-B-C

14 bar g

Designed for a maximum cold hydraulic test pressure of 60 bar g

Note: With internals fitted, test pressure must not exceed 40 bar g

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.

Maximum design pressure

Maximum design temperature

Minimum design temperature

Maximum upstream pressure

for saturated steam service

A-D-E

A-B-C

A-D-E

A-B-C

Maximum operating temperature

Minimum operating temperature

Maximum differential pressure

B

C

Steam

saturation

curve

G

E

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© Copyright 2009

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