Fire-fighting groove rising stem gate valve

Technical Parameters

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 Details

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.

Main external connection size

Nominal diameter	50		65	80	100		125	150	200	250	300
D	57	60	76	89	108	114	133	159	219	273	325
							140	165
A1	14.5		14.5	14.5	16		16	16	19	19	19
BA	9.5		9.5	9.5	9.5		9.5	9.5	13	13	13
C	2.2		2.2	2.2	2.2		2.2	2.2	2.5	2.5	3.3
L	145		160	170	180		200	240	275	325	355
H	325		455	455	455			500	620	750	880
D0	180		200	200	200			240	320	320	400

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