Electro-Hydraulic DI Concentric Butterfly Valve

NSV Electro-Hydraulic DI Concentric Butterfly Valve

The NSV electro-hydraulic DI concentric butterfly valve features a monobloc DI body (ASTM A536) with resilient seating and an integrated electro-hydraulic actuator, available in sizes from 2" to 72" (DN50–DN1800), designed for low-pressure automated pipeline systems.

Electric signals control hydraulic power to deliver consistent high torque for smooth operation even at the largest bore sizes, while EPDM or PTFE seats ensure bi-directional Class VI bubble-tight shutoff.

Suitable for Class 150 (PN16) water, air, and non-corrosive services in smart water and industrial automation applications.

Key Features

Valve type: Concentric butterfly valve
Body material: DI (ASTM A536 65-45-12)
Sealing: Resilient seated (EPDM/NBR/PTFE)
Actuation: Electro-hydraulic only
End connection: Wafer / Lug / Flanged
Size range: 2"–72" (DN50–DN1800)
Pressure rating: Class 150 (PN16)
Operating temperature: -10°C to 80°C (EPDM), -20°C to 120°C (PTFE)

Core Advantages of Electro-Hydraulic Actuation

High Output Torque: Delivers significantly higher torque than electric actuators alone, reliably operating valves up to DN1800 against backpressure and seating friction

Smooth Operation: Hydraulic damping eliminates mechanical shock, reducing seat wear and extending service life

Smart Integration: Supports 4–20mA or Modbus for remote control, feedback, and proportional modulation

Fail-Safe Ready: Optional spring-return or accumulator ensures safe closure or position hold during power loss

Robust in Harsh Environments: IP67/IP68-rated actuator suitable for wet, dusty, or outdoor installations

Low Maintenance: Sealed hydraulic system requires no lubrication and operates without compressed air, offering superior reliability

Typical Applications
Suitable for automatic isolation and regulation in municipal water mains, smart DMA networks, fire pump stations, irrigation hubs, industrial cooling circuits, and wastewater treatment plants.

Quality Assurance
Valve tested to 1.5x shell pressure and bi-directional sealing per API 598 / ISO 5208; body complies with ASTM A536, coated internally and externally with epoxy (≥200μm); electro-hydraulic actuator CE certified; EN 10204 2.1 Declaration of Conformity provided.

FAQ

1. Q:Does “NSV” valves have supply to any value end user?

A:Yes,,it just like PETROKIMIA GRESIK in Indonesia, BP Iraq,ESFAHAN MOBARAKEH STEEL In Iran etc.

2. Q:Are you manufacturer or trading company?

A: We’re manufacturer,but our factory name is not named NSV due to we’re professional in promotion NSV brand with best service,and also have sold to many end user success.

3. Q:Do you have customized valve?

A:Yes,we can supply customized valves.

4. Q: What kinds of valves do you manufacture?