DIAVAC LIMITED
Vacuum components

Clamp valve | L-type valve


Vacuum valve


Air-operating L-type valve: LAV-K□series, LAV-□ series

•Features
Valve is operated with compressed air (0.3 to 0.5 MPa)as the source.
All flanges are in conformity with JIS B2290 (VF type).
All LAV-K□ are made of SUS with low price (K1 to K8)
O ring materials use FPM (fluorine rubber) (K1 to K8)
Installation of optional lead switch makes valve on/off position detectable.

•Application to:
Large-sized pumping systems difficult to operate manually,which is made possible by use of compressed air.
Various pumping systems in the cases of automatic operation, remotecontrol, and countermeasures against blackout.


•Product specification [LAV-K□series]
Model LAV-K1 LAV-K2 LAV-K3 LAV-K4 LAV-K6 LAV-K8
Flange type VF25 VF50 VF80 VF100 VF150 VF200
Conductance(l/sec) 15 70 180 350 1000 1700
Leak volume at body seal part
(pa•l/sec)
1.0 X 10 or less
Installation posture free
Body material SUS304
Sealing material

fluoride rubber (FPM)

Compressed air pressure (Mpa) 0.3 to 0.5
Life cycle 300K cycles (at room temperature) 100K cycles (Note-1)
Mass(Kg) 1.6 3.6 9.3 14.5 28.5 45
Exterior dimension drawing [PDF]
[DXF]
[PDF]
[DXF]
[PDF]
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[PDF]
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[DXF]

•Product specification [LAV-□ series]
Model LAV-14 LAV-18 LAV-22 LAV-26 LAV-36
Flange type VF350 VF450 VF550 VF650 VF150
Conductance (l/sec) 5400 9200 14000 20000 45000
Leak volume at body seal part
(pa•l/sec)

1.0 X 10 or less (at stoppage)

Installation posture direction vertical to shaft only
Body material SS400 + Ni-plating/SUS304
Sealing material

nitrile rubber/fluoride rubber (FPM)

Compressed air pressure (Mpa) 0.3 to 0.5
Life cycle 30K cycles (note-1)
Mass(Kg) 120 240 295 420 750
(Note-1) for use at room temperature and at installation vertical to shaft



Manual L-type valve LV-K□ series

•Features
All flanges are in conformity with JIS B2290 (VF type)
LV-K□series are all made of SUS with low price
Material for O-ring is FPM (fluoride rubber)

•Application :
Various vacuum lines


•Product specification
Model LV-K3/4 LV-K1 LV-K2 LV-K3 LV-K4 LV-K6 LV-K8 LV-K10
Flange type VF20 VF25 VF50 VF80 VF100 VF150 VF200 VF250
Conductance(l/sec) 5 15 70 180 350 1000 1700 2700
Leak volume at body seal part
(pa•l/sec)
1.0 X 10 or less
Installation posture free (for LV-10K, direction vertical to shaft only)
Body material SUS304
Sealing material

fluoride rubber (FPM)

Life cycle 30K cycles (Note-1)
Mass (kg) 1.2 1.6 3.3 8.1 11 20 35 50
Exterior dimension drawing [PDF]
[DXF]
[PDF]
[DXF]
[PDF]
[DXF]
[PDF]
[DXF]
[PDF]
[DXF]
[PDF]
[DXF]
[PDF]
[DXF]
[PDF]
[DXF]
(Note-1) for use at room temperature and at installation vertical to shaft





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