GENERAL DESIGN SPECIFICATIONS:
ITEM CLASS 800
MANUFACTURE BS5351
PRESSURE-TEMPERATURE RATINGS ANSI B16.34
SCREW THREADED DIMENSIONS ANSI B 1.20.1
INSPECTION AND TEST API 598
TEST PRESSURE TO API 598
PARTS AND MATERIAL (ASTM):
PRESSURE GRADE FROM TO
CLASS 800 1/2  2
ANSI SHELL (WATER) SEAT (WATER) SEAT (AIR) BACK SEAT (WATER)
CLASS 800 21.1MPA 3000PSI 15.5MPA 2200PSI 0.6MPA 80PSI 15.5MPA 2200PSI
NO. PARTS NAME MATERIALS
1 BODY ASTM A105 ASTM F304 ASTM F316 ASTM F304L ASTM F316L
5 THRUST PLATE PTFE
6 STEM PACKING RAINFORCED GRAPHITE
7 GLAND ASTM A276 410 ASTM F304L ASTM F316L ASTM F304L ASTM F316L
8 PLATE SPRING STEEL
9 GLAND NUT ASTM A194 2H ASTM A194 B8
10 HANDLE STEEL+PLASTIC
11 GASKET RAINFORCED GRAPHITE
12 CAP ASTM A105 ASTM F304 ASTM F316 ASTM F304L ASTM F316L
13 SCREW ASTM A193 B7 ASTM A193 B8
OTHER MATERIALS ARE AVAILABLE UPON REQUEST.