Our Services Category

VACUUM In-Line VALVE-Manually Actuated

GD-KF/B series high vacuum manual straight valve is one of the important components in the vacuum system. The valve plate is opened or closed by rotating the knob upward or downward. It adopts ISO-KF standard flange interface, which is quick to install and can be used as an opening and closing mechanism in high vacuum pipelines. The valve plate of this valve has a limit device for moving up and down to ensure the life of the valve plate sealing ring and bellows. The valve is suitable for air or low-corrosive gas.

Consultation

Functional Features Technical Datasheet Overall Dimension

.Specification: Dimensions (DN): 16~50mm Others (customized) .Valve structure: Normally closed; Normally open (optional)
.Connection flange: ISO-K, ISO-KF (optional)
.Leakage rate: 1x10-¹⁰Pa·m³/sec (1x10⁹mbar·L/sec) .Drive mode: Manual
.Shaft core sealing method: bellows seal or shaft seal
.Material: High-purity aluminum alloy
.Material of sealing ring: FKM (fluororubber)
.Installation method: Any
.Heat resistance temperature: 150℃
.Flow conductance: (4.5L/S-850L/S)
.Service life: ≥500,000 times

Vacuum flange interface	KF16	KF25 KF40	KF50	Opening direction	≤2bar
Driver		Open: Manual		Temperature
Driver		Close: Manual		Working Environment	0℃~50℃
Valve travel	6.1mm	8.6mm 14.1mm	21.2mm	Baking body	≤150℃
Angle valve flow conductance	5L/S	20L/S 50L/S	85L/S	Cylinder	150℃
On-off level	<10/min	<10/min <10/min	<10/min	Driver	150℃
Opening time		<0.2s		The electromagnetic valve	20~70℃
Closing time		<0.2s		Installation direction	Any
Service life		≥500000		Flow direction	Any
Vacuum leak rate	1x10-¹⁰Pa·m³/sec(1x10-⁹mbar·L/sec)			Material
Maximum pressure inside the valve	5bar(absolute)			Valve body	SUS304
Minimum operating pressure inside the valve	1x10-⁸mbar			Bellows Assemblies	SUS 304/SUS 316L
Maximum operating pressure inside the valve		2bar		Sealing ring	FKM(Fluororubber)
Differential pressure range		△p		Sealing ring	FKM(Fluororubber)
Close Direction		≤5bar		weight	0.35kg 0.78kg 1.62kg 1.96kg