Butterfly Valve With Bypass

Size Range

DN500-DN1800

Pressure Class

PN10/PN40

Standards

EN1092-2, EN12266

End connection

Double flange (EN1092-2)

Available sizes

Standard DN sizes covered by this product. Confirmed at quote.

Available pressure classes

Pressure classes this product is rated to.

Configure your variant(manually adjust box on the right if you require a different spec)

Size

DN500 (20")DN600 (24")DN700 (28")DN800 (32")DN900 (36")DN1000 (40")DN1200 (48")DN1400DN1600DN1800

Pressure

PN10PN16PN25PN40

End connection

Flanged EN1092-2

Materials

All available material options per part. Click a pill to set it in the configurator.

body

ductile cast iron

disc

ductile ironstainless steel

coating

FBE 250μm DFT

lining

ebonite

Operating media

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
• Bidirectional zero-leakage design tested at rated working pressure differential
• 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
• Concentric or double-eccentric disc configuration visible from bore view
• Separate small-bore bypass valve (gate type with handwheel) mounted to valve body
• Air release/vacuum breaker assembly mounted to upper body
• Blue epoxy or paint coating applied to external surfaces

Notes

• Other standard drilling can be provided as special request
• Diagram: Image 2: 3/4 perspective product photograph of a large-bore (estimated DN600–DN1000) flanged butterfly valve with bypass gate valve on top, side gearbox, and air release fitting — white background
• Diagram: Image 3: Alternative angle product photograph of the same valve assembly on a light blue background
• Diagram: Image 4: Duplicate of image 3 — same valve assembly, light blue background

Description

Butterfly Valve With Bypass Brief description: F5 butterfly valve with bypass This kind of butterfly valve has the unique advantages: - Keeping the main valve closed and bypass valve open. That can maintain minimum flow across the valve to avoid water stagnancy and maintain water quality. - Equalize the pressure across the valve to enable manual opening in case of power unavailability. Available Sizes: DN500 DN1800 Pressure rating: PN10,PN16,PN25, PN40 SEND INQUIRY CHAT NOW Product Detail FAQ Product Tags Product description All the rubber lined butterfly valves of high reliability, robust design in accordance to the worst prevailing ambient conditions. Ebonite lining: has good chemical stability, excellent chemical corrosion resistance and organic solvent resistance, low water absorption,