{"product_id":"278426-genuine-bendix®-rv-1-pressure-reducing-valve","title":"278426 | Genuine Bendix® RV-1 Pressure Reducing Valve","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e: RV-1 Pressure Reducing Valve\u003cbr\u003e\u003cstrong\u003eCondition: \u003c\/strong\u003eNew \u003cbr\u003e\u003cstrong\u003eBrand: \u003c\/strong\u003eBendix\u003cstrong\u003e®\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePart Number: \u003c\/strong\u003e278426\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003e1. Compatible System Applications\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eThe RV-1 valve is a universal, heavy-duty pneumatic component rather than a vehicle-specific part. It is integrated into commercial vehicles requiring regulated, lower-pressure air to protect specialized secondary equipment. Common system installations include:\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eAir Suspension Systems:\u003c\/b\u003e Regulating supply pressure to cabin or chassis air bags.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003ePneumatic Auxiliary Controls:\u003c\/b\u003e Lowering main reservoir pressure (typically \u003cspan class=\"math-inline\" data-math=\"120\\text{–}130\\text{ psi}\" data-index-in-node=\"74\"\u003e120–130 psi\u003c\/span\u003e down to a steady \u003cspan class=\"math-inline\" data-math=\"60\\text{–}80\\text{ psi}\" data-index-in-node=\"118\"\u003e60–80 psi \u003c\/span\u003erange for air-operated wipers, differential locks, horn assemblies, and transmission shift controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eClutch Assist Systems:\u003c\/b\u003e Managing pressure for air-assisted hydraulic clutch mechanisms on heavy manual transmissions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003e2. Common Vehicle Types\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eThis valve is heavily utilized across the commercial transport industry, fitting:\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\"\u003eClass 8 Commercial Trucks:\u003c\/b\u003e Freightliner, Kenworth, Peterbilt, International, and Volvo semi-trucks.\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\"\u003eTransit Buses \u0026amp; Motor Coaches:\u003c\/b\u003e MCI, Prevost, Gillig, and New Flyer configurations.\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\"\u003eVocational Vehicles:\u003c\/b\u003e Dump trucks, cement mixers, and garbage trucks with multi-axial air lift systems.\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\"\u003e3. Port Specifications for Fitment Verification\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003eTo ensure correct fitment to your existing air lines, verify these standard Bendix® RV-1 specs:\u003c\/p\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e\u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"0\"\u003eInlet Port:\u003c\/b\u003e \u003cspan class=\"math-inline\" data-math='1\/4\\text{\"}' data-index-in-node=\"12\"\u003e1\/4\"\u003c\/span\u003e NPT (National Pipe Thread)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e\u003cb data-path-to-node=\"11,1,0\" data-index-in-node=\"0\"\u003eOutlet Port:\u003c\/b\u003e \u003cspan class=\"math-inline\" data-math='1\/4\\text{\"}' data-index-in-node=\"13\"\u003e1\/4\"\u003c\/span\u003e NPT\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003e\u003cb data-path-to-node=\"11,2,0\" data-index-in-node=\"0\"\u003eFactory Preset:\u003c\/b\u003e Usually adjusted to \u003cspan class=\"math-inline\" data-math=\"60\\text{ psi}\" data-index-in-node=\"36\"\u003e60 psi \u003c\/span\u003eor \u003cspan class=\"math-inline\" data-math=\"80\\text{ psi}\" data-index-in-node=\"53\"\u003e80 psi \u003c\/span\u003eout of the box, but features an adjustable screw beneath the top cap to fine-tune the pressure requirements of your specific vehicle.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Genuine Bendix® RV-1 Pressure Reducing Valve is an original equipment manufacturer (OEM) pneumatic control component designed to precisely scale down and stabilize air pressure within a commercial vehicle’s air system.\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003e1. What Does It Do?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eA heavy-duty truck's air compressor typically pumps the main reservoirs up to high pressures (around \u003cspan class=\"math-inline\" data-math=\"120\\text{–}130\\text{ psi}\" data-index-in-node=\"101\"\u003e120–130 psi\u003c\/span\u003e. However, many auxiliary air-operated components are fragile and will blow out, leak, or fail if exposed to that much pressure.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eThe \u003cb data-path-to-node=\"5\" data-index-in-node=\"4\"\u003eBendix® RV-1\u003c\/b\u003e acts as a protective shield. It takes the high-pressure supply air from the reservoir and safely drops it down to a constant, pre-regulated, lower pressure (typically \u003cspan class=\"math-inline\" data-math=\"60\\text{–}80\\text{ psi}\" data-index-in-node=\"184\"\u003e60–80 psi\u003c\/span\u003e depending on the application), regardless of any upstream fluctuations.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003e2. Core Design Features\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eDiaphragm-Operated:\u003c\/b\u003e Uses a balanced diaphragm and internal spring assembly to dynamically open and close the valve, ensuring an unyielding, flat pressure delivery curve.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eAdjustability:\u003c\/b\u003e Features an adjustment screw underneath a protective metal cap, allowing fleet mechanics to fine-tune the exact output pressure to match custom secondary equipment requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eCompact Die-Cast Construction:\u003c\/b\u003e Built with a highly durable, corrosion-resistant die-cast aluminum body to withstand harsh under-chassis conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSigns of Faulty\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003e1. Constant Air Leakage (Audible Hissing)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eThe most common indicator of failure is a continuous air leak emitting from the valve body or its exhaust vent. This typically signifies that the internal rubber diaphragm has torn, or the sealing seat has been scarred by moisture and debris from the air lines.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003e2. Abnormally High Air Pressure Downstream\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eIf the internal spring or diaphragm collapses, the valve can fail in the wide-open position. This allows unregulated reservoir pressure (\u003cspan class=\"math-inline\" data-math=\"120\\text{–}130\\text{ psi}\" data-index-in-node=\"137\"\u003e120–130 psi)\u003c\/span\u003e straight into the auxiliary lines.\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eThe Danger:\u003c\/b\u003e You will notice air lines popping off fittings, blown seals on air horn solenoids, or harsh, violent engagement of pneumatic accessories.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003e3. Sluggish or Completely Inoperable Secondary Air Accessories\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003eIf the internal spool valve gets stuck in a closed or restricted position due to varnish and sludge, downstream air pressure drops significantly below the required \u003cspan class=\"math-inline\" data-math=\"60\\text{–}80\\text{ psi}\" data-index-in-node=\"164\"\u003e60–80 psi\u003c\/span\u003e.\u003c\/p\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003eSymptoms:\u003c\/b\u003e Slow-moving or frozen windshield wipers, differential locks that refuse to engage, or laggy air-assisted clutch pedals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003e4. Extreme Downstream Pressure Fluctuations\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003eA healthy RV-1 valve delivers a perfectly flat, steady pressure curve. If your downstream pressure gauge dances erratically or drops drastically when a second air accessory is activated, the valve's internal mechanism can no longer dynamically adjust to flow demands.\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003e\u003cb data-path-to-node=\"13\" data-index-in-node=\"0\"\u003e5. Inability to Adjust Output Pressure\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"14\"\u003eWhen a fleet mechanic attempts to adjust the pressure bolt underneath the top cap and the downstream pressure remains frozen (fails to rise or fall), the regulating spring has either broken or lost its tension entirely.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer information\u003c\/strong\u003e\u003cbr\u003eA part of the Knorr-Bremse Group, \u003cstrong\u003eBendix®\u003c\/strong\u003e provides the automotive and truck parts industry with cutting-edge energy management solutions, active safety technologies, and air brake charging for tractors, buses, commercial vehicles, trailers, as well as medium- and heavy-duty trucks throughout North America. Headquartered in Elyria, Ohio, Bendix Commercial Vehicle Systems employs over 3,200 people who work hand in hand for the accomplishment of the brand's vision: \"to become the leading worldwide supplier of active vehicle safety systems within the commercial vehicle industry.\" This brand takes pride in being the first to introduce many notable parts and technologies to the North American commercial vehicle market. Among these many firsts are the groundbreaking air brake system technologies such as air dryers, air compressors, and ABS. At Bendix, exceeding industry standards is a strict requirement. \u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003cbr\u003eFirst Truck Parts offers a \u003cstrong\u003e365-days\u003c\/strong\u003e \u003cstrong\u003ewarranty\u003c\/strong\u003e for all types of parts and in any condition. The warranty applies only to buyers who have placed an order on our website.\u003c\/p\u003e","brand":"Bendix","offers":[{"title":"Default Title","offer_id":48804576428276,"sku":"278426","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/1479\/5764\/files\/images_6ae71c3e-92bf-4992-9ad8-19c358bd39b5.jpg?v=1783094593","url":"https:\/\/firsttruckparts.com\/en-ca\/products\/278426-genuine-bendix%c2%ae-rv-1-pressure-reducing-valve","provider":"First Truck Parts","version":"1.0","type":"link"}