GU vacuum (pressure) ball valve

GU vacuum (pressure) ball valve Product Overview
GU series vacuum (pressure) ball valve is suitable for connecting or cutting off the medium flow of the pipeline in the vacuum system. The valve is a straight through manual ball valve, sealed by the sphere, so it can be used in the vacuum state, also can be used in the low pressure state, and can be installed in any position.
GU series vacuum (pressure) ball valve is suitable for the working medium with acid, alkaline gas or liquid.
Main technical performance

Scope of application (Pa)	Quick release flange (KF) 2x105 ~ 1.3x10-5 lofting flange 16x105 ~ 1.3x10-5
Valve leakage rate (Pa.L/S)	1.3 x10 to 5 or less
Medium temperature (° C)	Standard factory: -30 ~ +150 Special designation: -30 ~ +240
Installation position	Any
Flange standard	GB4982; GB/T6070

Quick discharge flange (KF) connection and overall dimensions (GB4982)

Model number	Diameter (DN)	Φ D	Φ B	H	L	A
GU-10/KF	10	30	12.2	60	92	120
GU-16/KF	16	30	17.2	62	100	120
GU-25/KF	25	40	26.2	75	114	150
GU-40/KF	40	55	41.2	115	165	200
GU-50/KF	50	75	52.2	125	175	221

Looping flange connection and overall dimensions (GB/T6070)

Model number	Diameter (DN)	Φ D	Φ B	H	L	A	N - Φ C
GU-10	10	55	40	60	90	120	4-6.5
GU-16	16	60	45	62	100	120
GU-20	20	65	50	73	114	150
GU-25	25	70	55	75	114	150
GU-32	32	90	70	93	140	180	4-9
GU-40	40	100	80	115	165	200
GU-50	50	110	90	125	175	221
GU-63	63	130	110	166	186	230
GU-80	80	145	125	175	198	290	Eight to nine
GU-100	100	165	145	189	220	260	Eight to nine
GU-125	125	200	175	232	266	360	8 to 11
GU-150	150	225	200	250	296	400	8 to 11
GU-200	200	285	260	306	390	620	12-12

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