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Locking Cap

#LI System


  • Durable, corrosion-resistant polypropylene, polyethylene, and stainless steel construction
  • Optional fitting for suction line – maintain security while accessing chemical
  • Metal-detectable universal key with hole for lanyard or keychain
  • Tamper-resistant – designed to withstand attempts to force open with other tools
  • Available in 2 in. male NPS or 2 in. male buttress thread
  • Choose from five colors – natural (translucent white), blue, green, red, or yellow


Locking Cap

User Manual

Locking Cap


2 in. male NPS thread or 2 in. male buttress thread


1/2 in. MPT (below cap) x 1/2 in. FPT (above cap)


Chemical products used with this equipment must be formulated for this type of application and compatible with unit materials and pump seals. For more information on chemical compatibility, consult the manufacturer or SDS for your product or contact our customer service department.

Thread type Cap type Color
LI- 2 in. male NPS (FT) Without suction fitting (standard) Natural (standard)
2 in. male buttress (BT) With suction fitting (S) Blue (BL)
Green (GN)
Red (RD)
Yellow (YL)


Add bold option codes to item numbers as shown. For standard options, no option code is needed.  Examples:

  • LI-FT (locking cap with 2 in. male NPS thread and key)
  • LI-BTS (locking cap with 2 in. male buttress thread, suction line fitting, and key)
  • LI-BTS-RD (red locking cap with 2 in. male buttress thread, suction line fitting, and key)
  • Locking cap and key


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