GDQ-J-A series Normally closed pneumatic high vacuum baffle valve

GDQ-J-A series normally closed pneumatic high vacuum flapper valve relies on compressed air as the opening and closing power of the valve plate through the electromagnetic reversing valve. When the power supply or compressed air is lost, the valve with a diameter below DN80 will automatically close by spring force.

Valves, the valves above DN100 use the one-way valve to quickly close the original air source pressure of the cylinder through the solenoid valve group to automatically close the valve. So as to achieve the function of quickly cutting off the air flow in the vacuum system.

The shaft seal structure of pneumatic high vacuum baffle valve can be divided into GDQ-J-A type rubber seal and GDQ-J-A(b) type bellows seal. GDQ-J type is the angle through type, and GDQ-S type is the three-way type with pre-extraction. The applicable working medium is air and non-corrosive gas.

Features:

Applicable range (Pa) :10^5 ~1.3×10^-4 (shaft seal material is rubber) ;10^5~1.3×10^-6 (shaft seal material is bellows)

Valve leakage rate (Pa.L/S) :≤1.3×10^-5 (shaft seal material is rubber) ;≤1.3×10^-7 (shaft seal material is bellows)

Medium temperature (°C) : -25~+80 (the sealing material is NBR) ;-30~+150 (the sealing material is fluororubber)

Valve main parts material : stainless steel or carbon steel

Air source pressure (MPa) : 0.4~0.8

Installation position : DN < 300 arbitrary, DN ≥ 300 vertical

Power supply : AC220V/50Hz(voltage Standard factory);optional ①AC110V; ②DC24V; ③DC12V, etc.(Special designation: )

Signal feedback : without feedback signal(Standard factory) ;magnetic switch DC/AC5~240V(Special designation:)

Dimensions：(KF) Connection and Dimensions

model	diameter (DN)	ΦD	ΦB	H	A	Flange standard
GDQ-J10/KF	10	30	12.2	182	30	GB4982
GDQ-J16/KF	16	30	17.2	192	40
GDQ-J25/KF	25	40	26.2	205	50
GDQ-J40/KF	40	55	41.2	221	65
GDQ-J50/KF	50	75	52.2	264	70	/

Dimensions：Loop flange connection and dimensions

modle	diameter (DN）	ΦD	ΦB	H	A	n-ΦC	Flange standard	DNy (pre-extraction）
GDQ-J40A	40	100	80	221	70	4-Φ9	GB/T6070	/
GDQ-J50A	50	110	90	264	70
GDQ-J63A	63	130	110	283	88
GDQ-J80A	80	145	125	322	98	8-Φ9
GDQ-J100A	100	165	145	338	108	8-Φ9
GDQ-J125A	125	200	175	424	128	8-Φ11
GDQ-J（S)150A	150	220	195	482	138		JB919	KF40(GB4982)
GDQ-J（S)160A	160	225	200	482	138		GB/T6070	KF40(GB4982)
GDQ-J（S)200A	200	285	260	620	200	12-Φ11		DN50(GB/T6070)
GDQ-J（S)250A	250	335	310	655	208	12-Φ11		DN63(GB/T6070)
GDQ-J（S)300A	300	380	350	783	250	8-Φ14	JB919	DN80(GB/T6070)
GDQ-J（S)320A	320	425	395	1064	250	12-Φ14	GB/T6070	DN80(GB/T6070)
GDQ-J（S)400A	400	510	480	1212	330	16-Φ14	GB/T6070	DN100(GB/T6070)
GDQ-J（S)400A	400	500	465	1212	330	8-Φ18	JB919	DN100(GB/T6070)
GDQ-J（S)500A	500	610	580	1270	360	16-Φ14	GB/T6070	DN125(GB/T6070)
GDQ-J（S)600A	600	710	670	1562	450	12-Φ21	JB919	DN160(GB/T6070)
GDQ-J（S)630A	630	750	720	1562	450	20-Φ14	GB/T6070	DN160(GB/T6070)
GDQ-J（S)800A	800	920	880	1865	550	20-Φ21	JB919	DN200(GB/T6070)

GDQ-J-A series Normally closed pneumatic high vacuum baffle valve

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