YH100PW Pneumatic Bellows Single-Seated Control Valve

Compact Body Design: S-shaped flow path with flow guide vane to prevent turbulence.

High Performance: Low pressure drop, high flow capacity, wide adjustable range (up to 50:1), and precise flow characteristics.

Quick-Change Seat & Low Leakage: Integrated cage and guide bushing ensure Class IV/V leakage (ISO 5208).

Double Sealing: Bellows in upper bonnet completely eliminate stem leakage (API 622 compliant).

Multi-Spring Diaphragm Actuator: Compact size, high thrust force (up to 80kN), and corrosion-resistant design.

Product Details

	Chinese Standard	American Standard
Quality assurance	ISO9001	ISO9001
Design and manufacture	GB12224-2005	ASME B16.34
Flange standard	GB9113,GB9124.1 HG20592-2009	ASME B16.5
Length of structure	GB/T17213.3	ASME B16.10 ISA S75.03
Inspection and test standard	GB/T4213-2008	ANSI FCI70-2 IEC60534-2-1

DN	mm	15	20	25	32	40	50	65
DN	inch	1/2	3/4	1	1.25	1.5	2	2.5
DN	mm	80	100	125	150	200	250	300
DN	inch	3	4	5	6	8	10	12
PN	PN	16、25、40、64
PN	ANSI	CL150、CL300
Connections	Flanged Welding
Type	Straight bore single casting ball valve,Unbalance plug
Gland	Bolt clamp
Bonnet temp	Bellows sealed type				-45～+350℃
Packing	Teflon V-ring, Teflon fiber, Grafoil
Gasket	Matel wound graphite Gasket、Grooved metal gasket (316 stainless steel)
Painting color	Light curry (Epoxy resin group) is stan- dard. In the case of stainless steel body, no painting is standard.

flow characteristics	≤DN25	Metal valve seat ring	High accuracy	Equal percentage character (%) and linear character (1)
		Soft seat ring		Equal percentage character (%) and linear character (1)
	≥DN32	Metal seat ring	High capacity	Equal percentage character(%) and linear character (1)
		Soft seat ring
		Metal seat ring	High accuracy	Equal percentage character (%) and linear character (I)
		Soft seat ring
Adjustable range		50:1(Cv≥0.25)、30:1(Cv≤0.16)
Leakage level		hard sealing: standard Class IV, special Class V			soft sealing: Class VI
Fundamental error		Standard: ±1.5%(with positioner); Extended: ±2.5%(with positioner)
Backlash		Standard: ±1.5%(with positioner); Extended: ±2.5%(with positioner)
Dead zone		Standard: ±0.6%(with positioner); Extended: ±1%(with positioner)
Start point deviation		±2%(with positioner)
Rated travel deviation		±2%(with positioner)