scope:

This standard sets performance requirements for pressure reducing valves used in fire protection sprinkler systems. Pressure reducing valves are typically installed on a fire pump discharge line or as zone control valves within a sprinkler system.

Pressure reducing valves are used to control the water pressure in a fire protection system to downstream devices. They may be either direct-acting or pilot-operated type valves.

This standard covers the examination and Approval of pressure reducing functionality in deluge and preaction valves that are equipped with a pressure control option. To be considered for FM Approval, those valves must meet the requirements of this standard as well as all applicable requirements of Approval Standards 1020 and 1011/1012/1013.

Examination and Approval of pressure reducing valves includes the entire valve assembly (main control valve, valve trim components and/or associated devices) necessary for the satisfactory and reliable operation of the pressure reducing valve.

Valves without automatic operation are not covered in the scope of this Approval.

The requirements of this standard shall be used to measure and describe the performance of pressure reducing valves in response to exposure from flow, pressure, etc., under controlled laboratory conditions. The results of these controlled exposures shall not be used to describe or appraise actual exposure conditions since such conditions will vary widely.

Purpose

This standard states Approval requirements for pressure reducing valves.

Approval criteria may include, but are not limited to, performance requirements, marking requirements, examination of manufacturing facility(ies), audit of quality assurance procedures, and a follow-up program.