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Quick Details

  • Standard or Nonstandard: Standard
  • Structure: Butterfly
  • Pressure: Medium Pressure
  • Power: Pneumatic
  • Material: Stainless Steel
  • Temperature of Media: Normal Temperature
  • Media: Gas or Water
  • Port Size: DN40-DN600
  • Place of Origin: Shanghai, China (Mainland)
  • Model Number: LPB14 series
  • Brand Name: Lapar Valve

Packaging & Delivery

Packaging Details papar carton or according to customer's requested
Delivery Time 7-60 days


Wafer Butterfly Valve with Pneumatic Actuator
1.Optional stainless steel body and PTFE seat
2.Smaller torque, better sealing

LPB14 Wafer Butterfly Valve with Pneumatic Actuator - Lapar Valve



LPB14 Wafer Butterfly Valve Parameter



Pneumatic (1~7bar), Handwheel(option)






EPDM: -29~120°C, FPM: -29~150°C

PTFE: -29~150°C, CR: -29~80°C

NBR: -29~80°C, SI: -29~200°C




A shape, LT shape

Material of body

304, WCB, QT, HT

Material of Disc

316L, 316, 304, QT WCB, B148, QT+Nylon 11, FEP(QT+F46)

Material of Seat



Gas, Water and Oil


Limited Switch, Locator, Solenoid Valve, Pressure-relief Valve





Design Featurer of LPB14 Wafer Butterfly Valve

  • Horizontal pin: Reduce the exploding possibility of stem effectively under the internal unbearable pressure.
  • Disc: There is no stem through disc completely for less resistance and more flow capacity.
  • Stem: The design of two section of stem, can enhance the stability and resistance of disc effectively.
  • Guide bearing: It is made by nylon and can ensure that the shaft rotate in absolute center,to decrease friction and torque.
  • The seat with backrest: It is consisted of inner backrest and outer rubber.the backrest can withstand the deformation of seat when it is scoured and squeezed to extend service life.



  • Valve body is designed to meet MSS SP-67 and API609.
  • Upper flange standards: Valve mounting flange and stem shall be per ISO 5211.
  • Flange Standard: GB 9113.1N ANSI 150 B16.5,JIS B2211.
  • Pressure Rating:
  • Bi-directional bubble-tight shut off to: 16 bar(230psi)  DN40~DN600mm
  • And tested to 110% of full rating: 18 bar(260psi)  DN40~DN600mm
  • Shell Testing:
  • The body strength can stand 150% of full rating: 24 bar(340psi)    DN40~DN600mm


Main Features

  • Tight sealing and zero leakage under rated pressure(1 .OMpa,1.6Mpa).
  • Multi-sealing design separates valve body from working media to ensure zero leakage.
  • Main parts are designed to fit exactly into each other to ensure a better sealing, smaller torque, bigger flow, lower fluid resistance as well as flexible two-side flow.
  • Scientific design for the sealing surface of valve seat makes a closed connection between the valve and the pipe flange without any additional ccessories.
  • Designed and produced based on multi-standard system, so the valve could be applied to various of flange and enjoy excellent interchangability.
  • All parts are embalmed, suitable for various complex work environment.
  • Others: According to customer requirements.


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