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Tianjin Yibiao valve manufacturing Co., Ltd.

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ZJHL Pneumatic Diaphragm Cage Control Valve

The ZJHL pneumatic diaphragm cage control valve is a top-guided, low-noise control valve consisting of a multi-spring pneumatic actuator and a low-flow-resistance cage valve body. The multi-spring actuator features low height, light weight, and simple installation. The valve internals utilize a single-seat guided plug. This pneumatic diaphragm cage control valve primarily employs fluid pressure to achieve rapid plug movement with low operating force. It adopts a single-seat sealing configuration and delivers high precision in flow characteristic curves.

Parameters

Specifications: DN15-DN1000

Material: WCB

Brand: Tianjin Yibiao

Model: YBFM

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Product Details

The pneumatic cage-type control valve features an S-shaped streamlined flow passage in its body, offering 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. Pneumatic diaphragm cage control valves offer excellent dynamic stability, low noise, and cavitation resistance, making them suitable for controlling high-pressure differential fluids across various temperatures. These valves are primarily applicable in scenarios requiring extremely low leakage rates and significant pressure differentials across the valve.

Pneumatic Diaphragm Cage Control Valve Main Technical Parameters

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)	Linearity	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
Allowable 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		Caged Single-Seat Plunger Spool, Caged Sleeve Double-Guided Spool
Flow Characteristics		Linearity, equal percentage