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Pneumatic single seat control valve

1.Pneumatic single seat control valve Product overview

Pneumatic diaphragm control valve with top guide structure, equipped with multi spring actuator, flow channel was streamlined S. Has the advantages of compact structure, light weight, flexible action, small pressure drop loss, valve capacity, flow characteristics of precision, convenient maintenance and so on, can be used in harsh working conditions. Particularly applicable to allow a small amount of leakage, the valve before and after the pressure is not the occasion. This series of products are the normal temperature, high temperature, low temperature, regulating off type, bellows seal type, jacket insulation type and other types of. Valve caliber range is DN20-300, a variety of grades suitable fluid temperature range of -196-+560 ℃. Leakage level IV, V, VI class. There is a straight line, the percentage of properties such as flow characteristics. A variety of different specifications are available.

2.Pneumatic single seat control valve Main parts materials

Parts Name	Material
Body	WCB	CF8	CF8M	CF3M
Seat	304	304	316	316L
Gasket	PTFE
Spool	304	304	316	316L
Guide sleeve	304	304	316	316L
Bonnet	WCB	CF8	CF8M	CF3M
Stem	304	304	316	316L
Packing	PTFE
Spring	65Mn	304	316	316L
Screw nut	304	304	316	316L

3.Pneumatic single seat control valve Main technical parameters

DN（mm）		20	25	32	40	50	65	80	100	125	150	200
Rated Flow KV	Line	7.6	12.1	19.4	30.3	48.3	75.9	121	193.6	302.5	484	759
Rated Flow KV	percentage	6.9	11	17.6	27.5	44	69.3	110	176	275	440	693
Rated stroke L（mm）		16		25			40			60
PN（MPa）		1.6 2.5 4.0 6.4 10.0
Signal range Pr（KPa）		20-60、20-100、40-200、60-100、80-240
Air pressure Ps（MPa）		0.14、0.25、0.28、0.40

4.Pneumatic single seat control valve Performance of pneumatic actuator

Model	ZHA/B-11	ZHA/B-22	ZHA/B-23	ZHA/B-34	ZHA/B-45	ZHA/B-56
stroke（mm）	10	10、16	16、25	40	40、60	100
Effective area（cm）	200	350	350	560	960	1600
D1（mm）	32	60	60	80	95	100
D2（mm）	/	80	80	105	122	130
n-d	/	2-Φ10	2-Φ10	4 -Φ12	4 -Φ14	4 -Φ18
M	M8	M8	M8	M12×1.25	M16×1.5	M20×1.5
S（ZHA/ZHB）mm	80/70	100/84	100/75	154/114	180/115	260/160
Air interface size	M10×1				M12×1.25	M16×1.5
Air pressure	0.14、0.25MPa
Environmental temperature	-30~60oC
Spring range	0.02~0.10、0.04~0.10、0.08~0.24MPa

5.Pneumatic single seat control valve Dimension

DN		20	25	32	40	50	65	80	100	125	150	200
structure length （L）	PN16/25	184	184	200	222	254	276	298	352	420	451	543
	PN40	184	184	200	222	254	276	317	368	400	473	568
	PN64、100	206	210	251	251	286	311	337	394	500	508	610
H1		128	128	152	152	160	205	205	208	273	333	364
H2		298	298	298	298	298	380	380	380	510	510	510
H3		208	208	224	228	228	334	334	342	408	453	482
H4		338	338	402	402	405	627	628	635	698	702	728
H5		53	58	68	73	80	90	98	108	123	140	168
H6		180	180	180	180	180	236	236	236	310	310	310
A		282	282	282	282	282	360	360	360	470	470	470
C		220	220	220	220	220	270	270	270	320	320	320
L1		289	289	289	289	289	347	347	347	476	476	476
PN		GB：1.6、2.5、4.0、6.4、10.0MPa ANSI：150、300、600LB JIS：10、20、30、40K
Actuator		ZHB-22			ZHB-23		ZHB-34			ZHB-45

6.Pneumatic single seat control valve Ordering Information

1.DN
2.PN
3.Valve Connection
4.Actuators
5.Actuator mode of action
6.Process media and state
7.After the valve before the pressure valve pressure
8.Maximum, normal, minimum flow
9.Medium temperature

Control valve series

General valve series