Langsongkeli (Shanghai) Instrument Co., Ltd
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CV type self sealing valve
This product is a connection device between SF6 gas density meter or density relay and SF6 gas chamber. After assembly, it can effectively seal the SF
Product details

This product isSF6Gas density meter or density relaySF6The connection device of the air chamber can be connected after assemblySF6The air chamber is effectively sealed to avoidSF6The loss of gas and its impactSF6Moisture permeation in gas circulationMedium voltage switches, high voltage switches, and gas insulated busbars(GIL)All systems are applicable.


CV Valve


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1. Self sealing function: automatically seals when the device or connector is removed

2. Reusable

3. Can be used on outdoor switchgear

4. ConnectableSF6Gas inflation and vacuuming device

5. ConnectableSF6Gas recovery vehicle


1. body materialaluminum alloy/copper alloy/stainless steel

2. Nominal diameter:6812 mm(Medium voltage equipment)

20mm(High voltage equipment)

3. Surface treatment: Aluminum alloy: oxidation treatment

Copper alloy, stainless steel: not treated

4. Working temperature:-40°C ~ +60°C

5.Leakage rate:1×10-9Pa·m3/s


interface size customizable

Nominal diameter customizable


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