Fire-fighting groove rising stem gate valve

Product overview

Product model: Z81X/RVGX

Nominal diameter: DN50~300mm

Nominal pressure: PN1.0/1.6MPa

Seal test: 1.5/2.4MPa

Applicable temperature: 0℃~80℃

Applicable medium: water, gas, etc.

Main material: cast iron, cast steel



Product Detail

Product description

The gate of the fire-fighting grooved open-stem gate valve moves linearly with the valve stem. Usually there is a trapezoidal thread on the lifting rod. Through the nut on the top of the valve and the guide groove on the broad body, the rotation The operating torque becomes the operating thrust. By turning the hand wheel, the valve plate linked with the valve stem is raised or lowered through the advance and retreat of the thread of the hand wheel and the valve stem to achieve the purpose of opening and closing. The opening and closing part of the open-stem gate valve is a gate, and the moving direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled.

消防沟槽明杆闸阀(图1)


Main external connection size

Nominal diameter506580100125150200250300
D57607689108114133159219273325
140165
A114.514.514.5161616191919
BA9.59.59.59.59.59.5131313
C2.22.22.22.22.22.22.52.53.3

L
145160170180200240275325355

H
325455455455
500620750880
D0180200200200
240320320400

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