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butterfly walve
butterfly walve
butterfly walve
butterfly walve

Butterfly valve

Butterfly Valve Series delivers precise flow control and reliable sealing for diverse fluid systems. Available in wafer, flanged, and fire-fighting signal types, these valves excel in compactness, ease of operation, and durability, making them ideal for water, sewage, gas, and industrial fluid applications across municipal, industrial, and fire-fighting scenarios.

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Butterfly walve

butterfly walve
Butterfly valve series adheres to stringent execution standards covering design, manufacturing, structural length, flange dimensions, pressure-temperature ratings, and inspection/testing, as specified by GB/T12238, JB/T7527, GB/T12221, GB/T9113, HG/T20592, GB/T12241.6, GB/T9131, GB/T12224, GB/T13927-2008, and GB/T26480-2011.

Selection Guide

Code 0 1 2   4 5 6 7 8 9
Ⅱ-Actu ated Type Ekcto magneti Becto-hydauli n    Gear Spurgear   Angle gear Pneu matic Hydraulic    odani Electrical
Ⅲ-Con nection   Inside g rew Outile srew   Fange Web ing Wafer Union ring Compression      joint
I-TypeCode V-Construction ype
Gate Vale Z Rbing stem on-rising stem
Wedge type二 Paralle type Wedge type Paralleltype
Flexible Rigid disc
Singe Double    Single Double    Single Do uble Singe Double
Glo be Vakve J Th rough way 7.Type Tee Angled Straght fbw Balance type
Tho te Vahe L Thyough way stand
PstonVahes U
BallVakve Q Half ball through way Foatingtype Tun nian-mounted
Throughway Y-Pattern Tee Seal type Tee Fo uway Thro ugh way Tee Top type Allwek ing
L-Pattern T-Pattern T-Pattern L-Pattern
Butterfly Valve D Hon-seal ti eccentic seal type lon-saltype
Center linetype Singlecentrie Breccentric Linkmechanism Trieccentric Center linetype Bi-ecce ntri Linkmechanism Ti-ecentrie
Diaph agm Vahe G Weirtype Go be type Y-pattern Through waytyp Rpatemangk type
Plug Vahe X Packing seal Lubricateseal
Thughwaye TratemEe   Fourewaype Though waytype Tee Ttype
C H Liftype Swing type Rotary type butterfly Gilobe check
Th.way Verticltype Angle type二 Single plate Do ubled sc Multi-disc
vaNe A Sping saltype Sping ureal    Lever Sping uneal Pu be
Ttwith cooling fin Low ift Fullit Spannertype Fulit with control Spannertype
Tw in-bw Tw in-bw Low ift Low ift
Red uc ing    Valve Y Diaphragm   Spring   diaph agm Pston Be lows    Lever      
Tapváave s Ballfbat   Open bucket Exp nsion   Inverted   bucket type  Membrane     box    Puke Hotmotive    force
   Waste    Valve P Contin uous Discharge二    Dscontinuous de charge
Though waytye Angletype   Stajmfwtye   Stajmfwtye   Stajmfwtye   Stajmfwtye
1omna The dat of mom na da meter expDes5ast ntimes MHa va e;twil akworking presure when medium te me atre over42 CAnd be used in powerstaton.
Code Code VI-Body mate ial Code VI-Body material Code
Ba bitt me tal M lybn plastik H Ta nium&tit nium alby TI Sphero ida lcast iron Q
Ena mel C Boroneingstel P Carbonsteel C Mo2Tiseries 5 R
itrided steel   Lead Lining Q Crl3 s ries 5S H Pastic S
Fluo ro plastics F Mo2 Tise res 55 R CFMo steel I Coppe &Coppe rAlly T
Ce ame metl二 G Pbstic 5 Ma lea blelron K C-Mb-Vstel V
Cr13 sres55 H Coperalloy T Aluminum alloy   Graycast Iron Z
Rubbe lined   Rubber X 18-8 series 55 P 18-8 se res 5S
Monel metal J 18-8 series 5S PL
Re mark:1 、Code Wis express material of seatsurface that direct Re mark:1 、Omitthe ode if body mate rialis gray castiro n body when
machining from body.      PN≤1.6MPa and is carbonsteel body when PN≥2.5MPa.
      2 、Exce pt diaphragm valve,it markwith lowhard ness 2、CF3、CF8、CF3M、CF8Metc ma te rialcode can direct ma rk
  mate rialcode whensealsurface ma te rialis diffe rent.      on body.

Product Features

Small in size and light in weight. Easy installation and maintenance. It can be mounted wherever needed.
Simplized and compact in construction, quick 90 degrees on-off operation.
Minimalized opera-tintoque, energy saving.
Long service life. Standing the test of tens of thousands opening/closing operations.
Flow curve tending to straight line. Excellent regulation performance.
Bubbles-tight sealing with no leakage under the pressure test.
Wide selection of materials, applicable for various medium.

Application

1. Pipeline systems for drainage, sewage treatment, irrigation, and municipal engineering.

2. Medium flow control and regulation in industrial pipelines such as power plants, metallurgy, and petrochemical plants.

3. Water, sewage, air, oil, and mildly corrosive media.

4. Rapid opening and closing and flow control of large-diameter, low-pressure pipelines.

Installation

Inspect the valve model, specifications, and sealing surfaces to ensure there is no damage.
Confirm the flow direction markings on the valve body and install it according to the media flow direction.
Place the valve between the pipe flanges, aligning the bolt holes evenly.
Tighten the flange bolts diagonally and in stages, ensuring even force distribution.
For wafer-type butterfly valves, install suitable gaskets on both sides to prevent leakage.
Manually operate the valve several times to check for smooth opening and closing.
If an actuator is required, connect it and adjust the opening and closing limits.
Perform a pressure test to check for leaks and confirm normal operation.

Working Principle

Upon startup, the submersible motor drives the impeller to rotate at high speed.
The impeller blades generate axial thrust on the water flow, giving it kinetic energy and causing it to flow axially.
The water flows into the impeller chamber and then into the guide vane body.
The guide vane body converts the kinetic energy of the water flow into pressure energy, increasing the water head.
The pressurized water is then discharged, completing the media transport process.

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