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4 in. Tight-Fill Top-Seal Coaxial Adapters
4 in. Tight-Fill Top-Seal Coaxial Adapters
4 in. Tight-Fill Top-Seal Coaxial Adapters
One Year Manufacturer Warranty

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OPW 633TC / 633TCP 4 in. Tight-Fill Top-Seal Coaxial Adapters

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Model # Description Price Qty
633TC-8090 4 in., Anodized Aluminum $91.95
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OPW - 633TC / 633TCP - 4 in. Tight-Fill Top-Seal Coaxial Adapters
Tight-Fill Top-Seal Adapters are installed in spill containment manholes on the fill riser pipe from an underground fuel storage tank. They mate with the gravity drop delivery elbow on the transport truck.

OPW 633TC
OPW coaxial vapor recovery fittings provide an easy, inexpensive means to convert existing conventional 4" underground storage tank fill pipes to coaxial vapor recovery installations when Stage I Vapor Recovery is required. Normally little or no digging or breaking of concrete is necessary. Simply remove existing tight-fill adaptor and drop tube (if installation is so equipped), and insert an OPW 61TC Coaxial Drop Tube and the 633TC Adaptor. The OPW 633TC Adaptor is designed to mate with a coaxial delivery elbow. Available in bronze or anodized aluminum for corrosion and wear resistance.

OPW 633TCP
The OPW 633TCP Coaxial Adaptor features a poppeted vapor return path that opens only when connected to a fill elbow. When not in use, the vapor path is sealed, preventing fugitive emissions. The 633TCP is installed with the 61TCP Coaxial Drop Tube, and is designed to mate with a coaxial delivery elbow.
Note: Poppeted fittings are certified by California Air Resources Board (CARB).

Product # Elbow Size Riser Thread lbs. kg Description
in. mm in. mm
633TC-8090 4 102 4 102 1.45 0.66 Anodized Aluminum
633TC-8095 4 102 4 102 4.74 2.15 Bronze
633TCP-3803 4 102 4 102 1.26 0.57 Anodized Aluminum