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OPW 634 Series Tight-Fill Top-Seal Cap


The OPW 634TT is designed to mate with 4″ 633T, 633TE, 61SA, 633TC, and 633TCP Top-Seal Adaptors. Heavy duty and corrosion resistant, the body is made of Duratuff® to help eliminate rust and oxidation for a long, maintenance-free life. The toggle lever distributes downward pressure to compress its Buna-N gasket evenly, assuring a positive, water and vapor-tight seal. The 634TT can be locked with a padlock or wire seal.

OPW 633TE adaptor is similar to the 633T, except it does not have internal wrenching lugs.

OPW 634TT – Metal

The 634TT-4000 is a metal top-seal cap with the same dimensions as the 634TT-7085.

Weight 1 lbs
Dimensions 4 × 4 × 2 in

Duratuff, Metal