Municipal Water
HVAC
Wastewater Treatment
Desalination
Chemical Process
JQH Valve Product
Double Offset Butterfly Valve
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
- Size range: DN50-DN1200
- Pressure rating: PN10 / PN16
SizeDN50-DN1200
PressurePN10 / PN16
Temperature【需要人工补充】
Connection【需要人工补充】
ApplicationMunicipal water, HVAC, wastewater, desalination, chemical process and industrial pipeline projects.
Overview
Short Introduction
A butterfly valve product family for water and industrial pipeline projects where the operating conditions and specification require a double-offset design.
Key Features
- Configuration reviewed against the agreed application requirements.
- Product documents can be requested for the required configuration.
- Support for project inquiry, technical clarification and order documentation.
Applications
Suitable applications must be confirmed from the actual fluid, temperature, pressure, connection standard, installation arrangement and operating method.
Quick Specs
Size, pressure rating, temperature range, connection, body/disc/seat materials and operation are confirmed against the approved order specification.
Materials and Standards
Material options and applicable standards depend on the requested configuration. 【需要人工确认】 Do not use this page as a substitute for an approved datasheet or drawing.
Available Options
Available operation, marking, documentation, packing and accessory options should be discussed with the project requirements.
Quality Inspection and Packaging
The inspection scope and packaging method are agreed for the ordered configuration and project destination. Request the applicable documents before purchase.
FAQ
What information is needed for a quotation? Please provide size, pressure, fluid, temperature, connection standard, quantity and destination.
Can I request drawings or datasheets? Yes. Send the requested configuration and we will confirm which current document can be provided.
Downloads and Inquiry
Documents are available on request where approved for the specified configuration.
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.
Technical Specifications
| Design Standard | EN / DIN / ANSI / JIS by order requirement |
|---|---|
| Face to Face | 【需要人工补充】 |
| Connection | 【需要人工补充】 |
| Size Range | DN50-DN1200 |
| Pressure 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】 |
| Temperature Range | 【需要人工补充】 |
| Operation | 【需要人工补充】 |
| Testing Standard | 【需要人工补充】 |
Materials
| 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】
Dimensions
Dimension data can be supplied according to nominal diameter, pressure rating and connection standard.
CAD Drawing on Request
Download Center
Product Catalog
Available on request
Technical Datasheet
Available on request
Installation Manual
Available on request
CAD Drawing
Available on request
FAQ
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.
Need help choosing the right valve?
Send us your requirements and our engineer will reply within 24 hours.