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Lined Butterfly Valves

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  • Basic Design: API 609, MSS-SP-67, BS 5155, ISO 5752, DIN 3202
  • Shell/Seat Test: API 598, MSS-SP-61
  • Shell Test : DI (400 psig), CI (350 psig)
  • Closure Test : 165 psig
  • Full Disc Max. Pressure Shutoff Rating : 150 PSI
  • Reduced Disc Max Pressure Shutoff Pressure Rating : 50 PSI
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Lined Butterfly Valves Introduction

The PFA, FEP, PTFE, & Teflon lined Butterfly Valves have insensitive coating or lining at the internal surface of the valve body. The additionally added coating prevents the valve from exposure to caustic or corrosive chemicals.

Lined Butterfly Valve is a reliable, leak-free service valve designed for a wide range of demanding requirements in corrosive chemical applications and process industries.

Lined Butterfly Valves Feature

FEP & PFA Butterfly Valve

The FEP and PFA lined Butterfly Valves followed all standard criteria according to the API. FEP Valves can bear up to 160°C operating temperature and PFA can sustain up to 200°C operating temperature. 


PTFE Lined Butterfly Valve

Centric Disc PTFE lined Butterfly Valves are available in a 2” to 12” inch size range. PTFE sleeve Butterfly Valves with Mirror Finish Disc are very useful for powder applications as well. PTFE coated sleeve brings all the properties of PTFE. Due to this, the PTFE lined Butterfly valves can sustain 180°C operating temperature and easily handle extremely corrosive media.


The PN 10 pressure rating of lined Butterfly Valve becomes ideal for high pressurized media like gases, High chemicals, and viscous materials and it can be increased to PN 16 but on request. All these valves are available in wafer sandwiches and also provided the lug type body on request by the valve manufacturers.


Lined Butterfly Valves Specification 

PFA & FEP Butterfly Valve

Design

The FEP and PFA lined Butterfly Valves are designed and manufactured under API 609 category / BS – EN – 593.

Size Range

The FEP & PFA Butterfly Valves are available in 2″ to 20″ inches size range

Body

The PFA & FEP Butterfly valves are available in multiple body materials such as Cast Iron, WCB, CF8, CF8M, and CF3M

Disc

The Cast Iron, Cast Steel, CF8, and CF8M materials are used in the making of Disc for Butterfly Valves.

Seat

The PTFE and FEP materials are used for the seat in lined Butterfly valves

Temperature

160°C (For FEP), 200°C (For PFA)

Pressure

Lined Butterfly Valves comes up with PN 6 pressure rating and it can be increased to PN 10 on request.

End Connection

Wafer Type End Connections and Lug type also available on request.

Inspection & Testing

API 598 / BS EN 12266 Part- I

Leakage Class

Tight Shut off

-Manuals

Lined Butterfly Valves

-Data sheet


Lined Butterfly Valves Application

Lined Butterfly Valves are designed to work with aggressive media in Industries such as:


  • Chemical industry

  • High purity water

  • Food industry

  • Pharmaceutical industry

  • Sanitary industries

  • Corrosive & toxic media

  • Adhesives & acids

  • Chlorine production

  • Mining industry

  • Paint manufacturer

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