Steel frame: Fabricated from ASTM A 106 Grade B schedule 40 pipe
Flange: IS 2062 Grade B. ANSI B16.5, 150#for drilled holes
Cover plate: IS 2062 Grade B
Lining: Pure PTFE in compliance with ASTM D 1457, white in colour
Lining thickness: 3 to 7 mm, exceeds the relevant ASTM F- 1545 standard specs
Glasses: Toughned glass, high temperature and pressure oil tempered quenched light and sight glass as per BS 3463/75
Operating temperature: -29 to 260 deg. C
Operating pressure: Vaccume to 6 kq / cm. sq.
Hydrostatic pressure ted: 10 kg / cm. sq
Air leak bust: 3 kg / cm. sq.
Spark test: 10 KV