{"product_id":"u-s-seal-mfg-ps-756-buna-pump-seal-seat-type-1-head-type-c-1-1-4in-shaft","title":"U.S. Seal MFG. PS-756 Buna Pump Seal - Seat Type 1 Head Type C 1-1\/4In Shaft","description":"\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-6a43a35d-6f44-83ec-bb05-598fd82bfd75-82\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-578\" data-turn-id-container=\"request-6a43a35d-6f44-83ec-bb05-598fd82bfd75-82\" data-turn-id=\"request-6a43a35d-6f44-83ec-bb05-598fd82bfd75-82\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-turn-start-message=\"true\" data-message-id=\"317324d3-0267-40e2-8871-6713e63f32b0\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch3 data-end=\"16\" data-start=\"0\" data-section-id=\"17lc1ru\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-end=\"761\" data-start=\"17\"\u003eThe U.S. Seal MFG. PS-756 Buna Pump Seal is a mechanical shaft seal designed to prevent fluid leakage in centrifugal pumps and other rotating equipment while maintaining reliable sealing performance under continuous operation. Commonly installed in industrial pumps, rotary pumps, turbine pumps, compressors, mixers, blenders, and chillers requiring a 1-1\/4 inch shaft seal. Maintenance technicians, pump rebuilders, and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this pump seal for equipment repair, preventive maintenance, and replacement of worn OEM mechanical seals to restore efficient, leak-free operation. The PS-756 features a Type C seal head, Type 1 seat, and Buna-N elastomer for general-purpose industrial service. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"780\" data-start=\"763\" data-section-id=\"5ms9th\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-end=\"1225\" data-start=\"781\"\u003eThe U.S. Seal MFG. PS-756 Buna Pump Seal is commonly used in centrifugal pumps, hydraulic pumps, rotary pumps, turbine pumps, compressors, mixers, blenders, chillers, and general industrial fluid handling systems. Its Buna-N elastomer provides reliable sealing performance for water, light oils, and other compatible fluids, helping reduce leakage, protect pump bearings, and extend equipment service life. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"1256\" data-start=\"1227\" data-section-id=\"5hg6bl\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-end=\"1907\" data-start=\"1257\"\u003e• Brand: U.S. Seal MFG.\u003cbr data-end=\"1283\" data-start=\"1280\"\u003e• Model: PS-756\u003cbr data-end=\"1301\" data-start=\"1298\"\u003e• Product Type: Mechanical Pump Seal\u003cbr data-end=\"1340\" data-start=\"1337\"\u003e• Shaft Size: 1-1\/4 in.\u003cbr data-end=\"1366\" data-start=\"1363\"\u003e• Head Type: C\u003cbr data-end=\"1383\" data-start=\"1380\"\u003e• Seat Type: 1\u003cbr data-end=\"1400\" data-start=\"1397\"\u003e• Seal Outside Diameter: 1.937 in.\u003cbr data-end=\"1437\" data-start=\"1434\"\u003e• Mating Ring Bore: 1.875 in.\u003cbr data-end=\"1469\" data-start=\"1466\"\u003e• Mating Ring Thickness: 0.437 in.\u003cbr data-end=\"1506\" data-start=\"1503\"\u003e• Elastomer Material: Buna-N (Nitrile)\u003cbr data-end=\"1547\" data-start=\"1544\"\u003e• Primary Ring Material: Carbon\u003cbr data-end=\"1581\" data-start=\"1578\"\u003e• Seat Material: Ceramic\u003cbr data-end=\"1608\" data-start=\"1605\"\u003e• Spring Material: Stainless Steel\u003cbr data-end=\"1645\" data-start=\"1642\"\u003e• Metal Parts Material: Stainless Steel\u003cbr data-end=\"1687\" data-start=\"1684\"\u003e• Maximum Working Pressure: 150 PSI\u003cbr data-end=\"1725\" data-start=\"1722\"\u003e• Operating Temperature Range: -40°F to 400°F\u003cbr data-end=\"1773\" data-start=\"1770\"\u003e• Application: Centrifugal Pumps, Rotary Pumps, Turbine Pumps, Compressors, Mixers, and Blenders \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"1933\" data-start=\"1909\" data-section-id=\"1cz0398\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"2133\" data-start=\"1934\"\u003e• John Crane Type 21 Mechanical Seal, 1-1\/4 in. Shaft\u003cbr data-end=\"1990\" data-start=\"1987\"\u003e• Flowserve Type 21 Equivalent Mechanical Pump Seal\u003cbr data-end=\"2044\" data-start=\"2041\"\u003e• U.S. Seal MFG. PS-756V Viton Mechanical Pump Seal\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"PLG Automation ","offers":[{"title":"New","offer_id":51714351431982,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_112a5a0a-ed7d-45af-9d5e-19acb36bb0b0.jpg?v=1770423756","url":"https:\/\/plgautomation.com\/products\/u-s-seal-mfg-ps-756-buna-pump-seal-seat-type-1-head-type-c-1-1-4in-shaft","provider":"PLG Automation ","version":"1.0","type":"link"}