Casting Steel Butterfly Valve

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
WORKING PRESSURE AND TEMPERATURE
MATERIAL NBR SEAT EPDM SEAT CSM(Hypalon) SEAT VITON SEAT PTFE SEAT
CARBON STEEL -12 ℃ ~+82 ℃ -45 ℃ ~+135 ℃ -18 ℃ ~+135 ℃ -12 ℃ ~+135 ℃ -18 ℃ ~+180 ℃
STAINLESS STEEL -12 ℃ ~+82 ℃ -45 ℃ ~+135 ℃ -18 ℃ ~+135 ℃ -12 ℃ ~+135 ℃ -18 ℃ ~+180 ℃
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) SEAT (WATER) SEAT (AIR)
16 2.4MPA 1.76MPA 0.6MPA
25 3.75MPA 2.75MPA 0.6MPA
PARTS AND MATERIAL (ASTM)
NO. PART NAME MATERIAL
1 HEX STUD ASTM A582 303
2 WASHER ASTM A582 303
3 END CAP ASTM A216-WCB/A351-CF8/CF8M/CF3/CF3M
4 O-RING NBR/EPDM/VITON
5 SHAFT ASTM A276-410/A276 304/316/304L/316L
6 SEAT NBR/EPDM/VITON/PTFE
7 DISC ASTM A216-WCB/A351-CF8/CF8M/CF3/CF3M
8 PIN ASTM A276-410/A276 304/316/304L/316L
9 THRUSH WASHER ASTM A276-410/A276 304/316/304L/316L
10 SEAT RETAINER ASTM A216-WCB/A351-CF8/CF8M/CF3/CF3M
11 UPPER BUSHING R-PTFE/BRASS
12 BODY ASTM A216-WCB/A351-CF8/CF8M/CF3/CF3M
13 METAL RING ASTM A276-410/A276 304/316/304L/316L
14 SHAFT PACKING PTFE/GRAPHITE
15 GLAND ASTM A216-WCB/A351-CF8/CF8M/CF3/CF3M
16 BOLT ASTM A193-B7/B8
17 WASHER ASTM A193-B7/B8
18 NUT ASTM A194-2H/A194-8
19 YOKE ASTM A216-WCB/A351-CF8
20 LOWER BUTSHING R-PTFE/BRASS
21 NAME PLATE ALUMINIUM/SS304
22 RETAINER SPRING SS304/SS316/INCOEL X750
23 STUD ASTM A570 GR33
24 WASHER 65Mn
25 SHAFT RETAINER RING ASTM A276-302/410
OTHER MATERIALS ARE AVAILABLE UPON REQUEST.
* We hereby reserve the rights of any alternative dimension that would help to improve our
valve's quality and working efficiency