Chlorine Tank Car Unloading Facilities Regulations (C.R.C., c. 1147)

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Regulations are current to 2024-10-30 and last amended on 2015-06-18. Previous Versions

SCHEDULE II(s. 21)

TABLE I

Design and Ratings for Steel Pipe, Fittings and Valves for Gaseous or Liquid Chlorine at Pressures Up to 300 Psig and Temps. from -150°F to 300°F

SIZE	¾” — 1½”	2” — 4”	6” UP
PIPE	SCH. 80, SEAMLESS (See Note 1)	SCH. 80, SEAMLESS	SCH. 40, SEAMLESS
FITTINGS (see Note 1)	BUTT WELD — SCH. 80, SEAMLESS FLANGED — 300# ASA, FORGINGS SCREWED — 2000# CWP, FORGINGS SOCKET WELD — 3000# CWP, FORGINGS	BUTT WELD — SEAMLESS, THICKNESS TO MATCH PIPE FLANGED — 300# ASA, CASTINGS OR FORGINGS
FORGED FLANGES (See Note 2)	RATING — 300# ASA TYPE — SCREWED, SOCKET WELD OR WELD NECK SIZES ¾” — 1” ONLY FORGED, 2 BOLT — OVAL FLANGE UNIONS FACED TO MANUFACTURER’S STANDARD RATING — 1500# CWP TYPE — SCREWED	RATING — 300# ASA TYPE — WELD NECK
VALVES (See Note 3)	PATTERN — GLOBE OR ANGLE RATING — 600# ASA DESIGN — OS & Y., FORGED BODY & BONNET, BOLTED BONNET & GLAND, RENEWABLE OR HARD-FACED SEAT ENDS — SCREWED, SOCKET WELD OR FLANGED	PATTERN — GLOBE OR ANGLE RATING — 300# ASA DESIGN — OS & Y., FORGED OR CAST BODY & BONNET, BOLTED BONNET & GLAND, RENEWABLE OR HARD-FACED SEAT ENDS — FLANGED
VALVES FOR CHLORINE GAS ONLY	PATTERN — PLUG RATING — 300# ASA DESIGN — LUBRICATED NON-LIFTING PLUG ENDS — SCREWED OR FLANGED	PATTERN — PLUG RATING — 300# ASA DESIGN — LUBRICATED, NON-LIFTING PLUG ENDS — FLANGED
BOLTING	DIMENSIONS PER ASA B18.2, THREADS PER ASA B1.1 (thru 1” — UNC SERIES: 1 1/8” UP — 8N SERIES) BOLT STUDS — THREADED FULL LENGTH BOLTS — HEAVY PATTERN NUTS — SEMI-FINISHED, HEAVY SERIES

ABBREVIATIONS — See Note 4.

NOTE 1 —
ALLOY STEEL TO ASTM A333 Gr. 3 MAY BE SCHEDULE 40.
NOTE 2 —
RAISED FACE FLANGES MAY BE USED IN GAS SERVICE. LARGE OR SMALL TONGUE AND GROOVE FACINGS AS PER ASA B 16.5 MAY BE USED IN BOTH LIQUID AND GAS SERVICE.
NOTE 3 —
THE DISC, SEAT AND STEM OF MANUAL VALVES SHALL BE MONEL OR HASTELLOY C, EXCEPT HARD-FACED SEATS WHICH SHALL BE COLMONOY #5 OR ITS EQUIVALENT.
NOTE 4 —
ABBREVIATIONS
- ASA
  — AMERICAN STANDARDS ASSOCIATION INC.
- ASTM
  — AMERICAN SOCIETY FOR TESTING MATERIALS
- CWP
  — COLD WORKING PRESSURE
- SCH
  — SCHEDULE
- OS&Y
  — OUTSIDE SCREW AND YOKE

TABLE II

Materials of Construction for Steel Pipe and Fittings (A.S.T.M. Designations)

Temp	PipeFootnote for TABLE II Materials of Construction for Steel Pipe and Fittings (A.S.T.M. Designations)^* and Seamless Fittings	Castings	Forgings	Studs	Nuts
-150° to -20°F	A333 Gr 3	A352 Gr LC3	A350 Gr LF3	A320 Gr L7	A194 Gr 4
-50° to -20°F	A333 Gr C	A352 Gr LCB	A350 Gr LFI	A320 Gr L7	A194 Gr 4
-20° to +300°F	A53 Gr A A106 Gr A Fittings only A234 Gr WPA WPB	A216 Gr WCB	A105 Gr I or II A181 Gr I or II	A193 Gr B7 A354 Gr BB A354 Gr BC	A194 Gr 1,2 or 2H

Return to footnote ^*Note: Cold bent carbon steel pipe shall not be used in Chlorine service unless it is stress relieved.