DESIGN DESCRIPTION:

CAST STEEL BUTTERFLY VALVE PN16/25

DOUBLE ECCENTRIC TYPE.

SEAT SEAL IN EPDM

AVAILABLE NBR OR VITON SEAL

SPRING BACK SEAT FOR RETAINING.

CONNECTION: WAFER TYPE, LUG TYPE

SIZE :DN50-DN300

WORKING PRESSURE AND TEMPERATURE

CARBON STEEL: NBR SEAT :-12 C ~82 C

EPDM SEAT :-45 C ~135 C

CSM(Hypalon) SEAT :-18 C ~135 C

VITON SEAT: -12 C 135 C

PTFE SEAT:-18 C~180 C

STAINLESS STEEL: NBR SEAT :-12 C~82 C

EPDM SEAT :-45C ~135 C

CSM( Hypalon) SEAT: -18C ~135 C

VITON SEAT:-12 C~135 C

PTFE SEAT:-18 C ~180 C

GENERAL DESIGN SPECIFICATIONS:

ITEM GERMANY STANDARD

MANUFACTURE: DIN3202

FACE TO FACE :API 609

END FLANGE: DIN 2543/2544

INSPECTION AND TEST: DIN 3320

TEST PRESSURE TO DIN3320:

PN SHELL (WATER):16 2.4MPA

                      25 3.75MPA

 SEAT (WATER):1.76MPA

                   2.75MPA

 SEAT (AIR):0.6MPA

              0.6MPA