Butterfly Valve With Bypass
Datasheet
Download datasheet (PDF)Specifications are indicative. Final specification is confirmed at quotation.
Specifications
Confirmed at quote- Size Range
- DN500 to DN1800
- Pressure Class
- PN10, PN16, PN25, PN40
- End connection
- Flanged
Standards
- Inspection & test
- EN 12266
- Flange & end dimension
- EN 1092-2
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- Pressure
- End connection
Materials
All available material options per part. Click a pill to set it in the configurator.
- Body
- Disc
- Coating
- Lining
Operating media
Typical applications
- drinking water
- treated wastewater
- raw water
- underground installation
Actuation options
Coatings
Features
- Integral bypass system comprising main valve, bypass pipe, and bypass valve
- Bypass valve can be opened while main valve is closed to maintain minimum flow and avoid water stagnancy
- Bypass valve used to equalise differential pressure across main valve prior to opening, enabling manual operation without power
- Flow-through disc design minimises line turbulence and reduces head loss
- Position indicator with adjustable end limit stops at open and closed positions
- Position indicator extendable above ground for underground installations
- Clockwise closing rotation
- Worm wheel gearbox with self-locking function
- Body strength test at 1.5× design pressure per EN12266
- Seat leakage test at 1.1× design pressure per EN12266
- Test certificate issued for each valve
- Large-bore flanged butterfly valve with integrated bypass gate valve on top
- Side-mounted gearbox actuator with handwheel operation
- Flanged end connections with full-face bolt pattern
- Separate small-bore bypass valve (gate type with handwheel) mounted to valve body
- Air release/vacuum breaker assembly mounted to upper body
Description
A double eccentric butterfly valve with an integral bypass system comprising the main valve, bypass pipe, and bypass valve. The valve body is constructed from ductile cast iron with double flange ends per EN1092-2, and features a flow-through disc design to minimise line turbulence and pressure drop. An internal and external FBE coating of 250μm DFT provides corrosion and abrasion resistance suitable for drinking water, treated wastewater, and raw water applications.
Selection notes
This butterfly valve is a double eccentric, with bypass and rubber lined pattern, supplied for flanged installation.
Sizes run DN500 to DN1800, in PN10, PN16, PN25, PN40.
The body is Ductile Cast Iron.
Stated service media include drinking water, treated wastewater and raw water.
It is catalogued for Water & Wastewater.
Built to EN12266 and EN1092-2.
Supplier remarks
- Other standard drilling can be provided as special request
Available pressure classes
Pressure classes this product is rated to.
Used in
Related guides
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