Control systems Pressure reducing/surplussing valves
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TI-P004-01 CTLS Issue 8
Description The SDP143 is a cast steel pilot operated pressure surplussing valve suitable for steam, air and industrial gasses ( Note: It is not suitable for oxygen service ). The SDP143 controls by sensing the upstream pressure through a pressure sensing pipe taken from the union 29 which is clearly identified on page 5. Standards This product fully complies with the requirements of the EU Pressure Equipment Directive 2014/68/EU 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. SDP143 Pilot Operated Pressure Surplussing Valve with Cast Steel Body
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Sizes and pipe connections DN15LC - Low Capacity version, DN15, DN20, DN25, DN32, DN40, DN50 and DN80. Flanged to EN 1092 PN40, BS 10 Table 'J', ANSI 300 and ANSI 150.
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
TI-P004-01 CTLS Issue 8
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SDP143 Pilot Operated Pressure Surplussing Valve with Cast Steel Body
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