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
2 BODY STUD ASTM A193 B7 ASTM A193 B8M
3 BODY STUD NUT ASTM A194 2H ASTM A194 8M
4 BODY SEAL PTFE
5 CAP ASTM A105 ASTM F304 ASTM F316 ASTM F304L ASTM F316L
6 BALL A105+ENP/F304 F304 F316 F304L F316L
7 SEAT R-PTFE/NYLON
8 STEM F6a F304 F316 F304L F316L
9 LOWER STEM SEAL PTFE
10 STEM PACKING RAINFORCED GRAPHITE
11 GLAND ASTM A182 F6 ASTM F304L ASTM F316L ASTM F304L ASTM F316L
12 HANDLE STEEL+PLASTIC
OTHER MATERIALS ARE AVAILABLE UPON REQUEST.