General Description: 
Non-rising stem gate valve is used where vertical space is limited or underground. The stem is threaded into the gate. As the handwheel on the stem is rotated, the gate travels up or down the stem on the threads while the stem remains vertically stationary. This type of valve has a pointer indicator threaded onto the upper end of the stem to indicate the position of the gate.

Design Standard:
Basic Design: API 600/BS1414, ASME B16.34, DIN/EN 1984
Face to Face (End to End): ANSI B16.10;
EN 558-1 GR.14, 15, 26 (DIN3202 F4/F5/F7/F8);
ČSN 133045 or GOST 3706
End Connection: ANSI B16.5, MSS SP-44 / ASME B16.47, ANSI B16.25, EN 1092
Test & Inspection: API 598, EN12266

Design Feature:
NRS GATE VALVE has flexible wedges, non-rising stems, and optional Impact hand wheel, which is characterized by renewable threads or welded seat rings, bolted valve caps or pressure-sealed valve caps.

Application:
Mainly used in petrochemical and general industries such as geothermal power plants, oil plants and power stations.