Manual Operation Right Angle Isolation Valves
The PVMK is a quick acting, bellows sealed, right-angled lever operated valve and is available with either an aluminium or stainless steel body. The lever, connected to a self lubricating plastic cam‑piston, actuates the valve stem and valve plate through PTFE bearings. The valve plate ‘O’ ring groove is vented to prevent gas bursts. The valves are designed to operate down to 10⁻⁹ mbar and up to a pressure of 2100 mbar (30 psi).
Molecular conductance
Leak rate
Operating pressure range
Reliability MTTF
Maximum baking temperature
Weight (Aluminium)
Weight (Stainless Steel)
l/s
mbar l/s
mbar
operations
°C
g
g
PV10MK
3
<10⁻⁹
<10⁻⁹ -2100
100000
100
170
-
PV16MK
4
<10⁻⁹
<10⁻⁹ -2100
100000
100
180
500
PV25MK
10
<10⁻⁹
<10⁻⁹ -2100
100000
100
490
1050
PV40MK
38
<10⁻⁹
<10⁻⁹ -2100
100000
100
1400
3300
PV50MK
50
<10⁻⁹
<10⁻⁹ -2100
100000
100
-
3800
Spectroscopy magazine
