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RUBBER LINED BUTTERFLY VALVES

BUTTERFLY VALVE DETAILS  
SIZE:1.1/2"-72" (40mm-1800mm)
Body:CI/SGI/WCB/SS 304/SS316/SS316lL
Disc:SGI/SS 304/SS316/SS316lL
Moulded Seat:NBR/EPDM/HYPLON/VITON
Oper. Temp.:Up to 80 TO 120° C
Working Pressure:Up to 10 Kg/Cm²/16 Kg/Cm²
End Connection:Wafer Type to Suit 150#/ LUG TYPE/ FLANGED TYPE
Seat Leakage:Tight Shut Off
Leakage Class:VI
Stem:STEM

 

Design And Manufacturing          : API 609 Category A / IS:13095 / BS EN 593 / AWWA C 504-06

Valve Face To Face Dimension   : Short Wafer As Per ISO 5752 TAB 5 / API 609 Category A / ISO 5752                                                           TAB 1 (BS 5155) / AWWA C 504 – 06

Flange Standard Conformity       : ASME B 16.5 / 16.47 Series A Class 150

Inspection & Testing                       : API 598 / BS EN 12266-1

Top Flange Drilling                           : ISO 5211

 

Center Line has been a market leader in resilient seated quarter turn valves for more than 10 years, and has earned a reputation as a supplier of superior valves at competitive prices. Their goal is to exceed industry requirements and customer expectations.

Center Line Butterfly Valves are a cost efficient range of resilient seated, concentric butterfly valves, which are suitable for a wide range of applications. Available in a variety of liner and disc material options, this range is suitable for operating temperatures of between –20º C and 120º C.

Center Line 200 Series Butterfly Valves are available in wafer and lug body options from cast and ductile iron. The seat of the valve features a back-up ring with a firmly vulcanized elastomer coating (EPDM or NBR). When the valve is shut it cannot arch or extend, which for other traditional designs has been a common cause of excess wear and resultant leakage.

 

Benefits at a glance:

  • Actuator flange accommodates all types of actuators
  • Stem bushing reduces torque and isolates the stem from the valve body, preventing seizure
  • Smooth finished disc flats to give a highly efficient seal
  • Precision profile disc provides bubble-tight shut-off and ensures minimum torque and longer seat life
  • Qualified for both gaseous and liquid service
  • Positive shutoff bi-directionally
  • Ease of maintenance
  • Short face-to-face dimension
  • Each body is cast, precisely machined and epoxy-coated to meet rigid tolerances.
  • Multiple seat and disc material options are available to meet a wide variety of process applications.
  • Square Stem design to facilitate direct mounting of actuators.
  • Each stem is machined to fit tightly into the upper disc for smooth operation and minimal hysteresis.
  • Bushings are available in bronze and teflon®. Both are corrosion resistant with mimimal effect on valve torque.

 

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