{"product_id":"4-weco-hammer-union-seal-buna-n-standard-service-elastomer-seal-ring","title":"4\" Weco Hammer Union Seal (Buna-N) | Standard Service Elastomer Seal Ring","description":"\u003cp data-path-to-node=\"4\"\u003eThe 4\" Weco Hammer Union Seal manufactured from premium Buna-N (Nitrile) is an essential replacement component engineered to ensure a secure, leak-free connection in extra-large-bore, high-volume flowline assemblies. Designed to fit precisely into standard 4-inch Weco-style hammer unions—including standard Figure 602, 1002, and 1502 profiles—this heavy-duty elastomer seal ring acts as the primary pressure barrier between the male and female subs, preventing fluid bypass and safeguarding the integrity of your large-scale flow control systems.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eConstructed from high-grade \u003cb data-path-to-node=\"5\" data-index-in-node=\"28\"\u003eBuna-N (Nitrile \/ NBR)\u003c\/b\u003e, this seal represents the reliable industry standard for general-purpose oilfield applications handling massive fluid volumes. Buna-N offers exceptional resistance to petroleum-based oils, synthetic lubricants, water, and abrasive drilling muds. The seal features a highly effective lip design that is pressure-energized; as internal line pressure increases, the lips of the seal are actively forced outward against the metal mating surfaces of the union. This creates a dynamic, blowout-proof barrier that tightens and secures the connection even under the severe vibration and massive flow rates common in 4-inch lines.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eIdeal for standard service environments, this 4\" hammer union seal provides excellent extrusion resistance and durability, ensuring your heavy-duty flowline equipment operates safely and efficiently during high-capacity fluid transfer, mud circulation, and cementing operations.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eFeatures \u0026amp; Benefits\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003ePressure-Energized Lip Design:\u003c\/b\u003e Utilizes massive internal flowline pressure to actively press the seal against the union's metal surfaces, creating a dynamic barrier that strengthens as flow and pressure increase.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003ePremium Buna-N Material:\u003c\/b\u003e Formulated from high-quality Nitrile rubber, providing superior, cost-effective resistance to oil, gas, water, and abrasive drilling fluids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eExtra-Large Bore Reliability:\u003c\/b\u003e Engineered specifically for standard oilfield operations utilizing 4-inch infrastructure, offering an excellent balance of tensile strength and abrasion resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003ePrecision Fit:\u003c\/b\u003e Manufactured to exact tolerances to ensure seamless, drop-in compatibility with standard 4\" Weco-style hammer unions (including Fig 602, 1002, and 1502 profiles).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eCost-Effective Maintenance:\u003c\/b\u003e Allows for rapid, in-field replacement of worn seals, maximizing uptime for large-scale flowline assemblies without the need for full structural replacement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eSpecifications \u0026amp; Technical Details\u003c\/b\u003e\u003c\/p\u003e\n\u003ctable data-path-to-node=\"10\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,1,0,0\"\u003e\u003cb data-path-to-node=\"10,1,0,0\" data-index-in-node=\"0\"\u003eComponent Type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,1,1,0\"\u003eHammer Union Seal \/ Lip Seal Ring\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,2,0,0\"\u003e\u003cb data-path-to-node=\"10,2,0,0\" data-index-in-node=\"0\"\u003eNominal Size\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,2,1,0\"\u003e4 Inch\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,3,0,0\"\u003e\u003cb data-path-to-node=\"10,3,0,0\" data-index-in-node=\"0\"\u003eMaterial\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,3,1,0\"\u003eBuna-N (Nitrile \/ NBR)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,4,0,0\"\u003e\u003cb data-path-to-node=\"10,4,0,0\" data-index-in-node=\"0\"\u003eService Application\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,4,1,0\"\u003eStandard Service (Oil, Water, Mud, Gas), High-Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,5,0,0\"\u003e\u003cb data-path-to-node=\"10,5,0,0\" data-index-in-node=\"0\"\u003eOperating Temperature Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,5,1,0\"\u003e-20°F to 250°F (-29°C to 121°C)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,6,0,0\"\u003e\u003cb data-path-to-node=\"10,6,0,0\" data-index-in-node=\"0\"\u003eCompatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,6,1,0\"\u003e4\" Weco-Style Hammer Unions (e.g., Fig 602, 1002, 1502)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eApplications\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003eThe 4\" Buna-N Weco Seal is a staple consumable for extra-large-bore flowline maintenance. It is widely used in standard-service applications involving high-capacity mud circulating lines, heavy-duty cementing manifolds, large-scale water transfer systems, pump suction\/discharge lines, and general high-volume well-servicing equipment requiring reliable, rapid make-up connections.\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cb data-path-to-node=\"12\" data-index-in-node=\"0\"\u003eQuality Assurance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003eEach batch of our 4-inch Buna-N union seals undergoes strict quality control checks to verify dimensional accuracy, material durometer (hardness), and structural integrity. This ensures every seal delivers consistent, reliable performance in demanding, high-volume oilfield conditions and resists premature wear under massive flow rates.\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003e\u003cb data-path-to-node=\"13\" data-index-in-node=\"0\"\u003eRequest a Quote\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003e📞 +1 405 666 5011\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003e📧 seo@blazess.com\u003c\/p\u003e","brand":"Blaze Sales \u0026 Service","offers":[{"title":"Default Title","offer_id":48474799440117,"sku":"SEAL4BU","price":7.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/5785\/1637\/files\/4_Weco_Hammer_Union_Seal_-_Buna-N_Large_Bore_Seal_Ring.png?v=1785159350","url":"https:\/\/blazess.com\/pt\/products\/4-weco-hammer-union-seal-buna-n-standard-service-elastomer-seal-ring","provider":"Blaze Sales \u0026 Service","version":"1.0","type":"link"}