Standard:
Design standard conform to: MSS SP-67, API609, EN593
Connection flange conform to: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16,
JIS B2212/2213, BS 10 Table D, BS 10 Table E
Top flange conform to: ISO 5211
Face to face conform to: API609, ISO5752 series 20, BS5155
Test standard conform to: API598

Design characters:
This corrosion resistant butterfly valve is a separated style with the PTFE liner ring inside. It can be fit for various corrosive and dangerous medium. Between the liner ring and the valve is the back liner which is made of high-elasticity rubber. The liner ring disc adopts the double spherical surface sealing structure which is used to guarantee the reliable closing and sealing performance. With the ascendant design, it will be safety and no leakage during the long-term use.

 

Performance:
Nominal Diameter: DN40-DN1200
Nominal Pressure PN (MPa):
1.0, 1.6, 2.0, 2.5
 

Testing pressure (water) Ps (MPa)
Body seat: 1.5 times rated pressure
Seat test: 1.1 times rated pressure