Gate Valves

Fire protection gate valves are used as isolation valves in sprinkler networks, fire hydrant lines, fire pump discharge headers, and individual fire suppression zones. Their intended operation is fully open or fully closed, not throttling service. Under normal conditions they remain fully open to minimize pressure loss and preserve the system design flow available for fire protection duty.

This category includes Genebre gate valves with EPDM seat, ductile iron GGG.40 body and bonnet, AWWA C515 design, outside screw and yoke (OS&Y) rising stem configuration, and UL/FM approval. Model 2094 is supplied with flanged ends to ASME B16.42 and face-to-face dimensions to ASME B16.10, with 300 PSI working pressure and temperature range from 0 to +80 °C.

Models 2100 and 2100D are supplied with grooved ends to AWWA C606, with the same basic ductile iron GGG.40 construction, AWWA C515 design, OS&Y arrangement, 300 PSI working pressure, 0 to +80 °C temperature range, and UL/FM certification. Grooved-end connection is used in fire protection piping systems where mechanical joint assembly with couplings is specified instead of flanged installation.

Valve selection should verify end connection standard, network pressure rating, UL/FM approval requirement, EPDM compatibility with fire service water, handwheel accessibility, valve position supervision, and any requirement for tamper switch monitoring defined by the fire protection design. Maintenance should include verification of full travel, seat tightness, stem packing condition, coating integrity and external corrosion, and cleanliness of the pipeline to prevent deposits or debris from affecting shut-off.