Rubber lined Butterfly Valve

Standard and Scope:

                                                                                                     

Size: NPS 2"～48" DN50～DN1200                            

Pressure Rating: Class 125 Class 150 PN2.5~PN16                

Connection: Double flange, Wafer type, Lug type and so on

Body Material: Cast iron, Ductile iron, Carbon steel, Stainless steel, Bronze

Disc Material: Ductile iron + ENP( Electro Nickel plated), Carbon steel + ENP( Electro Nickel plated), Stainless steel, AL-BZ (Aluminum bronze)

Body Seat Material: EPDM, NBR, Viton, and other rubber (PTFE, F4, F46, FPA, Tefelon, please refer PTFE lined Butterfly Valve) 

Design and Manufacture: API 609（Cast steel）, BS5155, EN593, ISO 5752/BS5155

Test and Inspection: API609, API598 ;ISO 5208, BS EN12569

Face-to-Face: API609, ISO5752, DIN3202-K1,EN558-1 20 Series, BS5155,MSS SP-67 

End Connection: ASME B16. 5（for NPS≤24）, ASME B16.47, MSS SP-44（for NPS＞24）, ANSI 125/150; BS EN1092-1, DIN2501PN10/PN16, JIS10K, BS4504

 

Design feature

 

Bi-directional seal

Streamlined disc was designed so as to maximize flow, reduce flow resistance and save energy

Minimized operating torque, energy saving

Simple and compact structure and convenient maintain and installation

Long time services life, durable

Temperature restriction, depends on seat material

Anti corrosive in some condition

Flow block is small, Excellent regulation perfromance.

Wide selection of materials, applicable for various medium

One Shaft With Pin, No pin and two shaft is also available if required

Operated by Manual, handle, Gearbox, Pneumatic actuator, Electric actuator.