Control systems Safety valves
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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 2021
TI-S13-30 CTLS Issue 16
SV74 Carbon Steel Safety Valve
4.7 105
Description The SV74 steel series safety valves are built in conformance to Section I and VIII of the ASME Boiler and Pressure Vessel Code. They are primarily intended for use on power boilers and unfired pressure vessels where ASME Section I and VIII stamped valves are required. Applications Protection of steam systems downstream of pressure regulating stations, on inlet to such equipment as air coils, heat exchangers and process vessels. Also for use on flash recovery vessels on condensate return systems to protect vessels. Air systems to protect accumulation vessels and air equipment from overpressurisation. Steam boilers and generators. Available types The SV74 is available with carbon steel body and stainless steel trim in orifice sizes from 'F' to 'R'. It has an open bonnet and easing lever and flanged connections. Certification
A manufacturers' Typical Test Report is provided as standard for each valve which will include valve set and hydraulic test pressure. Also available on request is material certification in accordance with EN 10204 3.1. Standards and approvals Approved by National Board of Boiler and Pressure Vessel Inspectors to ASME Boiler and Pressure Vessel Code Sections I and VIII. Seat tightness is in accordance with ASME/API STD 527-1992. If National Board 'V' or 'UV' stamp is required, then this must be specified at the time of ordering. The SV74 fully complies with the requirements of the EU Pressure Equipment Directive/UK Pressure Equipment (Safety) Regulations and carries the mark when so required. Sizes and end connections
Inlet
Flanged ASME class 300 RF
½" x 2" to 6" x 8"
Outlet
Flanged ASME class 150 RF
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