Electric Double Ball DBB Valve

NSV Electric Double Ball DBB Valve

The NSV electric double ball valve features a body forged from ASTM A105 carbon steel, integrating dual-ball safety isolation with smart electric actuation. 

Two independent ball elements provide Double Block & Bleed (DBB) functionality which enabling safe cavity venting and seal verification per API 6D.

The electric actuator offers remote operation and real-time position feedback, suitable for critical isolation from instrument lines to main pipelines.

Key Features

Body material: ASTM A105 forged carbon steel

Size range: DN15 to DN1000 (1/2"–40")

Pressure rating: ANSI Class 150 – Class 2500

Operating temperature: -29°C to +200°C (RPTFE seal)

Dual-ball advantage: Integrated DBB function for safe isolation and online leak testing

Sealing: RPTFE soft seat, zero leakage, compliant with ISO 5208 Class A

Electric actuation: Smart actuator with remote control, 4-20mA/Modbus

End connection:

• ≤2": NPT threaded or Socket Weld (SW)

• ≥1/2": Flanged (ANSI B16.5 / B16.47)

Standards: Designed per API 6D, ASME B16.34, ISO 17292

Typical applications

Oil & gas block valves, refinery high-pressure hydrogen service, chemical main process lines, LNG terminal inlet/outlet, large power plant feedwater systems—where fail-safe isolation is mission-critical.

FAQ

1.Q: What’s the brand of your company can supply ?

A:NSV or OEM service.

2. Q:How can I get your company catalog?

A: For your reference, basic catalogue is same as "Download>E-Catalog” of homepage. If you need printed material or request more specific data like PQ material, please contact sales team.

3. Q:Does your company have any agent/distributor with the exception of China?

A: At present,we have agent in Indonesia,Singapore,Canada,Mexico,Iraq,and welcome contact us if you would like to join us.

4. Q: I want to be registered as your agency.?

A: Defined inspection and manager’s approval shall be required for being registered as the company’s agency. For specific application method, please consult with sales team. If you are registered as the company’s agency, “Agency Certificate” will be issued.