市政供水
HVAC
污水处理
Desalination
化工流程
JQH Valve 产品
双瓣式止回阀
High Performance • Reliable Sealing • Long Service Life
Reliable valve solution for water infrastructure and industrial pipelines.
- Double offset design for tight shut-off and low torque
- Bubble-tight sealing and reliable pressure performance
- Suitable for bi-directional flow and automation packages
- 尺寸 range: DN50-DN1200
- 压力 rating: PN10 / PN16
尺寸DN50-DN1200
压力PN10 / PN16
温度【需要人工补充】
连接方式【需要人工补充】
应用Municipal water, HVAC, wastewater, desalination, chemical process and industrial pipeline projects.
概述
Product 概述
This product is designed for municipal water, HVAC, wastewater treatment, desalination and chemical process applications.
Features
- Reliable sealing performance
- Factory direct supply
- OEM and ODM available
- 压力 tested before delivery
Double Offset Design
Reduces friction and operating torque.
Tight Sealing
Helps achieve reliable shut-off performance.
Low Torque
Supports smooth operation with manual or automated actuators.
Long Service Life
Built for stable service in demanding water systems.
技术规格
| Design Standard | EN / DIN / ANSI / JIS by order requirement |
|---|---|
| Face to Face | 【需要人工补充】 |
| 连接方式 | 【需要人工补充】 |
| 尺寸 Range | DN50-DN1200 |
| 压力 Rating | PN10 / PN16 |
| Body Material | Ductile Iron / Cast Iron / Carbon Steel |
| Disc Material | Ductile Iron / Stainless Steel |
| Seat Material | EPDM / NBR / PTFE |
| Stem Material | 【需要人工补充】 |
| 温度 Range | 【需要人工补充】 |
| Operation | 【需要人工补充】 |
| Testing Standard | 【需要人工补充】 |
材料
| Part | Material Options |
|---|---|
| Body | Ductile Iron / Cast Iron / Carbon Steel |
| Disc | Ductile Iron / Stainless Steel |
| Seat | EPDM / NBR / PTFE |
| Stem | 【需要人工补充】 |
| Bushing | 【需要人工补充】 |
| O-ring | 【需要人工补充】 |
| Bearing | 【需要人工补充】 |
Standards
Design Standard
EN / DIN / ANSI / JIS by order requirement
Face to Face
【需要人工补充】
Testing Standard
【需要人工补充】
Final project standards and certificates are marked 【需要人工补充】 until confirmed by JQH Valve engineering team.
Optional Accessories
Manual Gearbox【需要人工补充】
Electric Actuator【需要人工补充】
Pneumatic Actuator【需要人工补充】
Limit Switch / Positioner【需要人工补充】
尺寸
Dimension data can be supplied according to nominal diameter, pressure rating and connection standard.
CAD Drawing on Request
下载中心
Product Catalog
可按需提供
Technical Datasheet
可按需提供
Installation Manual
可按需提供
CAD Drawing
可按需提供
常见问题
What is the difference between double offset and triple offset butterfly valve?
Double offset valves are widely used for reliable shut-off in water and industrial systems. Triple offset valves are often selected for higher temperature, metal sealing or severe service conditions.
What is the working temperature range?
The working temperature depends on seat and body material. Common options cover -20°C to 180°C, with higher temperature designs available on request.
What are the available connection types?
Wafer, lug, flanged and other connection types can be supplied according to project standards.
Can the valve be used for bi-directional flow?
Many JQH butterfly valves can support bi-directional flow. Final selection should be confirmed with size, pressure and sealing requirements.
Can you provide custom design and OEM service?
Yes. JQH Valve supports OEM marking, custom materials, actuator packages, export packing and project documentation.
