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Tianjin Yibiao valve manufacturing Co., Ltd.

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ZJHG Pneumatic Diaphragm Control Valve

The ZJHG pneumatic diaphragm control valve consists of a multi-spring pneumatic diaphragm actuator and a diaphragm control valve body, typically used in chlorine gas applications. The pneumatic diaphragm control valve features a simple structure, low flow resistance, and greater flow capacity than other valves of the same size. It is leak-free and suitable for regulating high-viscosity fluids and those containing suspended particles. Depending on the diaphragm material (rubber or PTFE), it can regulate strong alkalis and highly corrosive media. It consists of a diaphragm valve paired with a pneumatic diaphragm actuator.

Parameters

Specifications: DN40-DN800

Material: WCB

Brand: Tianjin Yibiao

Model: YBFM

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Product Details

Key features are as follows:

(1) Utilizes a lightweight actuator, reducing both height and weight by 30%.

(2) The valve body's inner surface features multiple material coatings to prevent direct medium contact, withstanding corrosion from highly aggressive media.

(3) Zero internal and external leakage when closed, making it ideal for highly toxic media or applications where medium contamination is unacceptable.

(4) Simple flow path with low resistance, offering a higher rated flow coefficient than single-seat or sleeve control valves of the same size.

Pneumatic Diaphragm Control Valve Technical Specifications

Nominal Diameter(DN)		15	20	25	32	40	50	65	80	100	125	150	200	250
Seat diameter(dn)		20	25	32	40	50	65	80	100	125	150	200	250	300
Flow coefficient	KV	8	12	16	38	60	68	90	150	300	500	600	1200	1800
Allowable pressure differential(MPa)		1.0			0.89	1.0	1.0	1.0	1.0	1.0	0.6	0.38	0.15	0.09
Nominal Pressure(MPa)		1.6, 2.5, 4.0, 6.4
Rated stroke(mm)		10	16		25		40			60				100
Actuator Model		ZHA/B-22			ZHA/B-23			ZHA/B-34			ZHA/B-45			/
Valve bonnet type		Standard Type (-17 to +250°C)
Cap Form		Bolt-clamping type
Sealing Packing		V-shaped PTFE packing, impregnated PTFE asbestos packing, asbestos textile packing, graphite packing
Valve Core Type		Diaphragm-type
Flow Characteristics		Quick-opening feature