Pneumatic Single Seat Globe Control Valve

Body: WCB, WC6, SS304, SS316

Bonnet: WCB, WC6, SS304, SS316

Seat: SS304, SS316, Stellite

Plug Metal Sealing: SS304, SS316, Stellite

Plug Soft Sealing: SS304, SS316, Stellite

Cage: SS304, SS316

Guide Sleeve: SS304, SS316

Stem: SS304, SS316

Balanced Piston: Steel, Aluminium

Balanced Piston Ring: Fluorine Ring, SS+Reinforced PTFE, Flexible Graphite Ring

Nominal Size: DN20 to DN200

Pressure: PN 16 to PN 100, Class 150 to Class 600

Actuation Type: Spring Return, Double Acting

End Connection: Flanged, RF, MF, RTJ

Technical Parameter

Seat diameter(mm)		10	12	15	20	25	32	40	50	65	80	100	125	150	200
Rated Cv	Percentage	1.6	2.5	4.0	6.3	10	16	25	40	63	100	160	250	400	630
Rated Cv	Linear	1.8	2.8	4.4	6.9	11	17.6	27.5	44	69	110	176	275	440	690
Pneumatic actuator Diaphragm area, Ae(cm2)		ZHA/B-22					ZHA/B-23			ZHA/B-34			ZHA/B-45
Pneumatic actuator Diaphragm area, Ae(cm2)		350					350			560			900
Action	Spring range	Metal sealing allowable pressure difference (MPa)
Air open	20-100KPa	4.46	3.09	1.98	1.16	0.7	0.44	0.28	0.18	0.17	0.11	0.07	0.07	0.05	0.03
	40-200 KPa	6.4	6.4	5.94	3.34	2.14	1.31	0.84	0.53	0.51	0.33	0.21	0.22	0.15	0.09
	80-240 KPa	6.4	6.4	6.4	6.4	4.99	3.05	1.95	1.25	1.18	0.78	0.5	0.51	0.36	0.21
Air close	20-100KPa	6.4	6.19	3.96	2.23	2.14	0.87	0.56	0.35	0.34	0.22	0.14	0.15	0.1	0.06
	40-200 KPa	6.4	6.4	6.4	6.4	6.4	5.86	3.64	2.3	2.21	1.43	0.91	0.95	0.66	0.37
	80-240 KPa	6.4	6.4	6.4	6.4	6.4	6.4	5.04	3.18	3.06	1.98	1.26	1.32	0.92	0.52

Dimensions

Pneumatic Single Seat Globe Control Valve

Recently Viewed Products