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Tianjin Yibiao valve manufacturing Co., Ltd.

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ZJHM Pneumatic Diaphragm Sleeve Control Valve

The ZJHM Pneumatic Diaphragm Cylinder Control Valve features a double-seal structure, comprising a multi-spring pneumatic diaphragm actuator and a low-flow-resistance, compact cylinder control valve body. The multi-spring actuator offers low height, light weight, and simple installation. The compact valve body features an S-shaped streamlined flow path. This pneumatic diaphragm sleeve control valve offers advantages such as compact structure, light weight, responsive operation, low pressure drop, high valve capacity, accurate flow characteristics, and easy maintenance. It is suitable for demanding operating conditions.

Parameters

Specifications: DN40-DN800

Material: WCB

Brand: Tianjin Yibiao

Model: YBFM

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Product Details

Pneumatic diaphragm sleeve control valves are particularly suitable for applications requiring low leakage rates and high differential pressures across the valve. Key features of pneumatic sleeve control valves include: (1) Utilizes a balanced double-seal valve plug, enabling high differential pressures under unbalanced forces while ensuring stable operation. (2) Large valve plug guide surface reduces oscillation caused by vortex formation and impact. (3) Noise levels reduced by approximately 10 dB compared to conventional single- or double-seat control valves. (4) Simple structure facilitates easy installation, disassembly, and maintenance.

Pneumatic Diaphragm Sleeve Control Valve Technical Specifications

Nominal Diameter(DN)		20	25	32	40	50	65	80	100	125	150	200	250	300
Seat diameter(dn)		20	25	32	40	50	65	80	100	125	150	200	250	300
Rated Flow Coefficient(KV)	Straight line	10	11	17.6	27.5	44	69	110	176	275	440	630	1000	1600
Rated Flow Coefficient(KV)	Equal parts	6.3	10	16	25	40	63	100	155	250	370	580	900	1300
Permissible pressure differential(MPa)		6.4	6.4	5.2	5.2	4.6	4.6	3.7	3.7	3.5	3.1	3.1	2.6	2.2
Nominal Pressure(MPa)		1.6, 2.5, 4.0, 6.4, 10.0
Rated stroke(mm)		16			25		40			60			100
Actuator Model		ZHA/B-22		ZHA/B-23			ZHA/B-34			ZHA/B-45			ZHA/B-56
Valve bonnet type		Standard Type (-17 to +250°C), High-Temperature Type (+250 to +450°C), Low-Temperature Type (-40 to -196°C), Bellows-Sealed Type (-40 to +350°C)
Cap Form		Bolt-clamping type
Sealing Packing		V-shaped PTFE packing, V-shaped flexible graphite packing
Valve Core Type		Balanced Spool (Sleeve-Guided)
Flow Characteristics		Linearity, equal percentage