Pneumatic Gate Valve

Low-bracket gate valve with pneumatic actuator and manual and protective mechanisms. Due to the use of a double-layer cylinder structure. Compared to single-cylinder pneumatic gate valves. The lifting power has doubled.

Size

DN50~DN500

Body Material

WCB, CF8 304, CF8M 316

Ambient Temperature

-28℃~425℃

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Product Overview

The valve is equipped with a buffering mechanism, which can effectively reduce the wear of the valve plate sealing surface and valve body sealing surface caused by the downward impact of the piston when closing the valve. It can also avoid the phenomenon of the gate getting stuck. Suitable for industries such as drainage, sewage, food, heating, gas, ships, hydropower, metallurgy, energy systems, and textiles.

Specifications

Technical Parameters

Nominal diameter DN (mm)		50-500
Nominal pressure (MPa)		1.0-1.6
Material Code		C	P	R
Main components	Valve body	WCB	CF8 304	CF8M 316
	Seal ring		D577 Stellite6
	Filler		Flexible graphite
Applicable working conditions	Applicable medium	Water, oil, air, and other media
	Applicable temperature	-28℃~425℃
Actuator	Single-acting	Equipped with a reset cylindrical spring and automatic reset function upon gas loss
	Double-acting	It has greater thrust than a single-acting cylinder of the same diameter, but does not have an automatic reset function
Optional Accessories		Electromagnetic valve, time limit switch, filter pressure reducing valve, manual mechanism

Main dimensions and connection dimensions (mm)

Nominal diameter DN	Main Connection Dimension
Nominal diameter DN	L1	H	L0	D	D1	D2	b	f	N-Φd
40	185	630	200	150	110	84	18	3	4-Φ18
50	185	645	250	160	125	100	18	3	4-Φ18
65	232	690	270	180	145	120	18	3	4-Φ18
80	232	715	280	195	160	135	20	3	8-Φ18
100	232	770	300	215	180	155	20	3	8-Φ18
125	283	780	325	254	210	185	22	3	8-Φ18
150	283	810	350	280	240	210	24	3	8-Φ23
200	283	967	400	335	295	265	26	3	12-Φ23
250	283	1143	450	405	355	320	30	3	12-Φ25
300	283	1292	500	460	410	375	30	4	12-Φ25

Downloads

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Application & Case

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