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Myers_Tire_Supply_Catalog

Passenger Tire Valves Tire Valve Characteristics, Specifications & Testing Specifications Good quality valve stems conform to SAE J1205 – J1206 Standards setting the performance criteria for heat resistance, aging and ozone resistance. Most valves have a Tire & Rim Association TR number, for example TR413, TR 418 etc. This number does not guarantee a specific level of quality; however it does indicate that the manufacturer should have produced the product to conform to published dimensional standards. The Tire & Rim Association publishes a yearbook listing standards for valve stem dimensional tolerances, but the group does not get involved with performance standards. Rubber Snap-In Valve Markings The TR 413 valves are marked as follows: Order No. Bottom of Valve 21173 03 TR-413 036 EHA Germany 25401 H.M.T. 242B TR413 22182 TR413 Schrader China 25301 07 TR413 104 DILL-ACP TR 413 XXX 22201 TR 413 PREMIER B019 Typically, ozone damage or cracks are seen in low cost valves Look for the manufacturer’s name or trademark, part number and country of origin. Many manufacturers of snap-in valves have mold cavity numbers on their valves for better traceability. Not all manufacturers supply the proper information on their valves, but the more information you see, the more likely the manufacturer is reputable, produces a quality product and stands behind it. Cracks or cross threads Inspect brass for cracks Improper welds myerstiresupply.com 37 Characteristics Testing All snap-in valve stems must be made with EPDM synthetic rubber rather than natural rubber to meet SAE ozone requirements. EPDM rubber also has a broader temperature range than natural rubber and will remain flexible in extremely cold weather. What to look for No brand name or country of origin. Who is the manufacturer? Can consistent product quality be verified? Who is responsible in case of a valve failure? Tubeless Tire Snap-In Valves • Maximum air pressure 65 psi • EHA & Myers Premier tire valves are sold exclusively through Myers Tire Supply TR 412 TR 413 TR 414 TR 418 TR 423 TR 415 TR 425 Myers EHA (Europe) Myers Premier (Asian) TR No. Effective Length Case Qty Fits rim hole .453" 26118 22200 412 7/8" 500 21173 22201 413 1 1/4" 500 21174 22202 414 1 1/2" 500 21175 22203 418 2" 500 22205 423 2 1/2" 500 Fits rim hole .625" 21170 22204 415 1 1/4" 500


Myers_Tire_Supply_Catalog
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