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

Regulations are current to 2023-01-25 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

SIZE¾” — 1½”2” — 4”6” UP
PIPE

SCH. 80, SEAMLESS

(See Note 1)

SCH. 80, SEAMLESSSCH. 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)

TempPipeFootnote for TABLE II Materials of Construction for Steel Pipe and Fittings (A.S.T.M. Designations)* and Seamless FittingsCastingsForgingsStudsNuts
-150° to -20°FA333 Gr 3A352 Gr LC3A350 Gr LF3A320 Gr L7A194 Gr 4
-50° to -20°FA333 Gr CA352 Gr LCBA350 Gr LFIA320 Gr L7A194 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.

 
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