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3 OPNi_ 634TT The OPW 63417 is designed to mate with the 633T and other similar top seal adaptors. Heavy duty and corrosion resistant, the body is made of DuratuT to help eliminate rust and oxidation for a long, maintenance free life. The toggle lever distributes down- ward pressure to compress its buna-N gasket evenly, assuring a positive, uni- form, leakproof seal. The 634TT can be locked with a padlock or wire seal. Materials Cap ii links: Duratuff* Pins: stainless steel Gasket: buna-N Color. grey Ordering Specifications Product No. in. mm. lbs. kg. 63477-1085 4" 102 1.01 .46 Replacement Parts Part No. Description N -05995-M Buno-N Gasket D'nnensions (W\N 641'1,p The OPV+` 6347TP is similar to the 634TT with the added feature of a pres- sure relief valve incorporated into the stem of the fill cap. A small button sticks out of the top/center of the toggle lever, and may be manually pushed open prior to removal of the cap. If any pressure buildup occurs in the drop tube. bleed -off is possible before removing the cap. The safety feature of the pressure relief valve in the 634M alerts a delivery driver to possible pressure buildup in the drop tube. If pressure buildup has occurred a slower bleed off through the valve. in the stem. is possi- ble. Additionally. the driver should notify the customer. or the company's maintenance department to investigate the problem and perform correc-ave action. It is important to note, the pressure relief valve will simply allow pressure to be detected and relieved more slowly and safely than if the cap was removed without actuating the valve. It will not release any more vapors than would be released by removing the cap normally. Ordering Specifications Product No. in. mm. _ lbs. kg. 634TTP-8016 4" 102 1.01 .46 1dep6 : t513t 870-321➢ -18001421.2525 - �zx:15131870.914 -18001411.3797 . .. ,. 01997 OPW hnrq - P.O. In ON 45240 -SM - %mj in USA -MOP - 3%96 z6,, In. mm. A T 118 8 2%, " 62 C 39" 86 D 5 % * 138 (W\N 641'1,p The OPV+` 6347TP is similar to the 634TT with the added feature of a pres- sure relief valve incorporated into the stem of the fill cap. A small button sticks out of the top/center of the toggle lever, and may be manually pushed open prior to removal of the cap. If any pressure buildup occurs in the drop tube. bleed -off is possible before removing the cap. The safety feature of the pressure relief valve in the 634M alerts a delivery driver to possible pressure buildup in the drop tube. If pressure buildup has occurred a slower bleed off through the valve. in the stem. is possi- ble. Additionally. the driver should notify the customer. or the company's maintenance department to investigate the problem and perform correc-ave action. It is important to note, the pressure relief valve will simply allow pressure to be detected and relieved more slowly and safely than if the cap was removed without actuating the valve. It will not release any more vapors than would be released by removing the cap normally. Ordering Specifications Product No. in. mm. _ lbs. kg. 634TTP-8016 4" 102 1.01 .46 1dep6 : t513t 870-321➢ -18001421.2525 - �zx:15131870.914 -18001411.3797 . .. ,. 01997 OPW hnrq - P.O. In ON 45240 -SM - %mj in USA -MOP - 3%96 z6,,