pneumatic diaphragm three-way adjusting valve

Model：ZJHQ、ZJHX
Category：Pneumatic Valve
origin：SHANGHAI

SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD

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ZJHQ、ZJHX pneumatic diaphragm three-way adjusting valve

ZJHQ、ZJHX pneumatic diaphragm three-way adjusting valve, use thin-walled cylindrical-shaped window valve spool guide. Equipped with multi-spring actuator, simple structure, light weight, small size, convenient assembly. Widely used for control air, liquid processing parameters, like pressure, flow, temperature, liquid level. This product contain two types: three-way confluence and three-way shunt. Nominal pressure: PN16、40、64; nominal diameter: DN25—300; fluid temperature: -60℃ to +450℃. Leakage standard is Ⅳlevel; flow characteristics: straight line,

Diameter of valve seat mm	Confluence	25	32	40	50	65	80	100	125	150	200	250	300
	Shunt	25	32	40	50	65	80	100	125	150	200	250	300
Rated flow coefficient kv	Confluence	8.5	13	21	34	52	85	125	210	340	535	800	1260
	Shunt	25	32	40	50	65	85	125	210	340	535	800	1260
Nominal pressure MPa		1.6 4.0 6.4
Travel mm		16		25		40			60			100
Flow characteristics		Straight line
Media temperature ℃		-20～200、-40～+250（normal temperature ）、-40～315（medium temperature ）
Flange size		Cast iron flange size JB79-59，Cast steel flange size JB79-59
Flange type		Sealing surface of flange JB77-59，Cast iron flange is smooth，Cast iron flange is concave
Material of valve body		HT200,ZG230-450、ZG1Cr18Ni9
Material of valve spool		1Cr18Ni9
Upper cover		General （normal temperature ），heat sink（medium temperature）
Adjustable ratio		30:1
Connector of air supply		M16×1.5