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Vapor Caps

These lockable vapor caps act like dust covers, but won’t activate the Air Interlock Valve when used on vapor check valves and adapters. Iron-copper infiltrated cams create a solid push-down-and-pull-up movement for quick, easy removal and replacement; steel latches hold the caps secure. Orange in color to indicate vapor recovery, the caps can be used with any 4-inch male cam and groove. Caps also available with finger ring and chains.

Highlights/Advantages

  • Meets API RP 1004 Standard
  • Aluminum or glass-filled nylon construction
  • Iron-copper infiltrated cams and steel latches
  • Lockable

Product Dimensions


MODEL UNIT 304-200-01 304-200-02 304-200-04 304-200-05 304-301-01 304-301-02
Size (Inches/Millimeters) 4.00/101.6 4.00/101.6 4.00/101.6 4.00/101.6 4.00/101.6 4.00/101.6
Weight (Pounds/Kilograms) 1.19/.54 1.19/.54 1.19/.54 1.19/.54 1.19/.54 1.19/.54
Gasket No. 777-111-01 777-111-02 304-105-01 304-105-01 777-110-04 777-110-04

Ordering Information


PART NUMBER DESCRIPTION
304-200-01 Nylon Vapor Cap without Chain
304-200-02 Nylon Vapor Cap with Chain
304-200-04 Nylon Vapor Cap without Chain-Chevroned Gasket
304-200-05 Nylon Vapor Cap with Chain-Chevroned Gasket
304-301-01 Aluminum Vapor Cap without Chain
304-301-02 Aluminum Vapor Cap with Chain