CNC
310 Pressure and Vacuum Relief Valve
Combined pressure and vacuum relief valve, spring loaded pressure,
dead weight loaded vacuum pallets and closed venting. Pallets
are supplied for metal or non-metallic seating. Settings to
50 psig pressure and to 7" WG vacuum. Available in 2"
to 8" sizes. |
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CNC
320 Pressure and Vacuum Relief Valve
Combined pressure and vacuum relief valve dead weight loaded
with closed vent. Pallets are supplied for metal or non-metallic
seating. Settings to 21" WG pressure and to 7" WG
vacuum. Available in 2" to 8" sizes. |
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CNC
330/340 Pressure Relief Valve
The CNC 330 dead weight loaded – pressure relief valve and CNC
340 spring loaded – pressure relief valve. Emergency pressure
relief valves, dead weight loaded up to 28" WG venting
to atmosphere.Alternatively, spring loaded up to 50psig for2"
size or 12 psig for 8" size. Pallets for metal to metal
or non-metallic seating.
Available in 2" to 8" sizes. |
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CNC
335/345 Vacuum Relief Valve
The CNC 335 dead weight loaded – vacuum relief valve and CNC
345 spring loaded – vacuum relief valve. Designed to relieve
minus pressure on vessels or piping wherever required. Vacuum
relief valves, dead weight loaded for up to 21" WG.Alternatively,
spring loading up to 10psig.
Metal to metal or non-metallic seating of pallets.
Available in 2" to 10" sizes. |
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CNC
336/346 Vacuum Relief Valve
The side mounted version of the CNC 335 dead weight loaded –
vacuum relief valve and CNC 345 spring loaded – vacuum relief
valve. Designed to relieve minus pressure on vessels or piping
wherever required. Vacuum relief valves, dead weight loaded
for up to 21" WG.Alternatively, spring loading up to 10psig.
Metal to metal or non-metallic seating of pallets.
Available in 2" to 10" sizes. |
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CNC
380 Pressure and Vacuum Relief Valve
Breather valves are dead weight loaded. Pallets are fitted with
PTFE impregnated diaphragms which seat on replaceable ‘O’ rings.
Settings to 22" WG pressure and to 10" WG vacuum.
Available in 2" to 12" |
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CNC
381 Pressure Valve
CNC
381 dead weight loaded pressure only relief valve with venting
to atmosphere
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CNC
382 Vacuum Relief Valve
CNC
382 dead weight loaded vacuum only relief valve with venting
from atmosphere.
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CNC
383 Pressure and Vacuum Relief Valve
CNC
383 dead weight loaded pressure and vacuum relief valve
Pressure side venting to closed line. Vacuum side venting
from atmosphere.
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CNC
384 Pressure Relief Valve
CNC
384 dead weight loaded pressure only relief valve with venting
to closed line
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CNC
385 Pressure and Vacuum Relief Valve
CNC
385 dead weight loaded pressure and vacuum relief valve
Pressure side venting to atmosphere, vacuum side venting from
closed line.
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CNC
386 Pressure and Vacuum Relief Valve
CNC
386 dead weight loaded pressure and vacuum relief valve
Both sides venting to and from a closed line
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CNC
387 Vacuum Relief Valve
CNC
387 dead weight loaded vacuum only relief valve venting from
a closed line
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