Vacuum Valves

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DYC-Q Series Low Vacuum Electr... GDQ-J series high-vacuum flap ... GUQ series pneumatic vacuum ba... Solenoid vacuum with charging ... Gl Series High Vacuum Butterfl... Oriented Check valve

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Vacuum Valves

GDQ-J series high-vacuum flap valve is used for cutting off or connecting gas flow in the vacuum system.
This valve takes the compressed air as the motive power. It changes the gas circuit direction through controlling the pneumatic components. It executes the gas cylinder drive to make flap valve have start-stop motions.
Applicable operating media are air, non-corrosive gas.

Applicable range (Pa)	105～1.3x10-4
Gas leakage rate (Pa.L/S)	≤1.3x10-5
Medium temperature （℃）	-25～+80(Seal material: acrylonitrile butadiene rubber)
Medium temperature （℃）	-30～+150(Seal material: fluoro rubber)
Pressure of air supply (MPa)	0.4～0.8
Installation position	DN＜300 anyDN≥300 vertical
Rated voltage	Standard manufactured：AC220V/50Hz
Rated voltage	Special designation：AC110V；DC24V；DC12V etc.
Signal feedback device	Standard manufactured：no feedback signal
Signal feedback device	Speical designation：magnetic switch DC/AC5～240V

(Picture one) (KF)Outline dimension and connection size

Model	Nominal diameter (DN)	ΦD	ΦB	H	A	Flange standard
GDQ-J10/KF	10	30	12.2	180	30	GB4982
GDQ-J16/KF	16	30	17.2	180	40
GDQ-J25/KF	25	40	26.2	200	50
GDQ-J40/KF	40	55	41.2	210	65
GDQ-J50/KF	50	75	52.2	276	70	/

(Picture two)Loose flange"s outline dimension and connection size

Model	Nominal diameter (DN)	ΦD	ΦB	H	A	n-ΦC	Flange standard	DNy(Pre-pumping port)
GDQ-J40	40	100	80	230	70	4-Φ9	GB/T6070	/
GDQ-J50	50	110	90	276	70
GDQ-J63	63	130	110	283	88
GDQ-J80	80	145	125	324	98	8-Φ9
GDQ-J100	100	165	145	338	108	8-Φ9
GDQ-J125	125	200	175	424	128	8-Φ11
GDQ-J（S)150	150	220	195	482	138		JB919	KF40(GB4982)
GDQ-J（S)160	160	225	200	482	138		GB/T6070	KF40(GB4982)
GDQ-J（S)200	200	285	260	620	200	12-Φ11		DN50(GB/T6070)
GDQ-J（S)250	250	335	310	655	208	12-Φ11		DN63(GB/T6070)
GDQ-J（S)300	300	380	350	783	250	8-Φ14	JB919	DN80(GB/T6070)
GDQ-J（S)320	320	425	395	1064	250	12-Φ14	GB/T6070	DN80(GB/T6070)
GDQ-J（S)400	400	510	480	1210	330	16-Φ14	GB/T6070	DN100(GB/T6070)
GDQ-J（S)400	400	500	465	1210	330	8-Φ18	JB919	DN100(GB/T6070)
GDQ-J（S)500	500	610	580	1270	360	16-Φ14	GB/T6070	DN125(GB/T6070)
GDQ-J（S)600	600	710	670	1562	450	12-Φ21	JB919	DN160(GB/T6070)
GDQ-J（S)630	630	750	720	1562	450	20-Φ14	GB/T6070	DN160(GB/T6070)
GDQ-J（S)800	800	920	880	1865	550	20-Φ21	JB919	DN200(GB/T6070)

Note：Among which above DN400 the bases are using blind flangesn-Mb.

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