{"title":"Air Release","description":null,"products":[{"product_id":"cla-val-34-series-1-2-3-4-1-lever-type-air-release-air-release-valve-red","title":"Cla-Val 34 Series 1\/2\", 3\/4\", 1\" Lever Type Air Release Air Release Valve - Red","description":"\u003cp\u003eCla-Val 34 Series 1\/2\", 3\/4\", 1\" Lever Type Air Release Air Release Valve - Red\u003cbr\u003e\u003cbr\u003e* Ductile Iron Body\u003cbr\u003e* Stainless Steel Trim and Float\u003cbr\u003e* Easily serviced without removal from pipeline\u003cbr\u003e* Available Pressure Ratings: 175 and 300\u003cbr\u003e* Engineered for drip tight seal at low pressures\u003cbr\u003eCla-Val Series 34 Air Release Valves are designed to vent entrained air that collects at high points in a pipeline. This valve continuously eliminates air from a system by releasing small quantities of air before large air pockets can occur. Stainless steel trim is standard.\u003cbr\u003e\u003cbr\u003eSeries 34 Fire Protection System Air Release Valves are typically installed at high-points in pipelines and at regular intervals, of approximate 1\/2 mile, along uniform grade line pipe. Mount the unit in the vertical position on top of the pipeline with an isolation valve installed below each valve in the event servicing is required. A vault with adequate air venting and drainage is recommended.\u003cbr\u003e\u003cbr\u003eProduct Specifications\u003cbr\u003e\u003cbr\u003eSizes 1\/2\", 3\/4\", 1\"\u003cbr\u003e\u003cbr\u003ePressure Ratings (see note) 175 UL\/FM 300 UL\/FM\u003cbr\u003e\u003cbr\u003eTemperature Range : Water to 180°F\u003cbr\u003e\u003cbr\u003eNote: Specify when operating pressure below 10 PSI\u003cbr\u003e\u003cbr\u003eMaterials Body and Cover: Ductile Iron ASTM 536 65-45-12 \u003cbr\u003e\u003cbr\u003eFloat: Stainless Steel\u003cbr\u003e\u003cbr\u003eInternal Parts: Stainless Steel\u003cbr\u003e\u003cbr\u003eSeal: VitonTM or Buna-N® (Standard)\u003c\/p\u003e","brand":"Lehigh Valley Valve","offers":[{"title":"Default Title","offer_id":53842772885779,"sku":"34-AR332-R","price":277.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/9856\/2835\/files\/d92d0048-a138-534b-8163-6a7ff99a1247__51551.1643680256.1280.1280.png?v=1771410812"},{"product_id":"cla-val-34-series-1-2-3-4-1-simple-lever-type-air-release-air-release-valve","title":"Cla-Val 34 Series 1\/2\", 3\/4\", 1\" Simple Lever Type Air Release Air Release Valve","description":"\u003cp\u003eCla-Val 34 Series 1\/2\", 3\/4\", 1\" Simple Lever Type Air Release Valve - Threaded Inlet\/Outlet\u003cbr\u003e\u003cbr\u003e* Ductile Iron Body\u003cbr\u003e* Stainless Steel Trim and Float\u003cbr\u003e* Inlet Size: 1 Inch NPT with 1\/2\" and 3\/4\" Adapters\u003cbr\u003e* Pressure Class: 175 MWP\u003cbr\u003e* Stock # 21056724C\u003cbr\u003e* Model 34-AR332\u003cbr\u003e* Easily serviced without removal from pipeline\u003cbr\u003e* Working pressures to 800 psi\u003cbr\u003e* Engineered for drip tight seal at low pressures\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eCla-Val Series 34 Air Release Valves are designed to vent entrained air that collects at high points in a pipeline. This valve continuously eliminates air from a system by releasing small quantities of air before large air pockets can occur. In many installations, continuing accumulations of air in the pipeline (lacking air release valves); cause flow capacity to slowly decrease; power consumption slowly increases; unnoticeable at first, until flow drops dramatically, even stopping due to air blocks in the piping. Another problem resulting from excessive air accumulation is unexplained pipeline rupture. These ruptures are passed off as the result of ground settling or defective pipe, Where as in reality its large air pockets that greatly increase pressure surges (normally occurring) when flow stops and starts causing the rupture. During normal pipeline operation, air accumulation at the high point will displace the liquid within the air valve and lower the water level in relation to the float. As level of the liquid lowers, where the float is no longer buoyant, the float drops and opens the valve orifice seat and permitting accumulated air to be exhausted to atmosphere. After air is released, the liquid level in the air valve rises and closes the valve orifice seat. This cycle automatically repeats as air accumulates inside the air release valve, thereby preventing the formation of air pockets.\u003c\/p\u003e","brand":"Lehigh Valley Valve","offers":[{"title":"Default Title","offer_id":53842772918547,"sku":"34-AR332","price":277.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/9856\/2835\/files\/5528ea1a-b6c9-52f5-956b-86ee0ce2183f__09728.1643680478.1280.1280.jpg?v=1771410813"},{"product_id":"2-cla-val-39bww-316ss-flanged-wastewater-service","title":"2\" Cla-Val 39BWW (316SS, Flanged, WASTEWATER SERVICE)","description":"\u003cp\u003e2\" Cla-Val 39BWW (316SS, Flanged, WASTEWATER SERVICE)\u003cbr\u003e\n\u003cbr\u003e\nCla-Val 39 Series Anti-Slam Air Release and Vacuum Breaker Valves protect piping and equipment against water hammer, surge conditions and vacuum formation during filling or draining operations. Often installed adjacent to pumps or at high points in a pipeline, they perform the following four functions in potable water, raw water and sewage applications.\u003c\/p\u003e\n","brand":"Lehigh Valley Valve","offers":[{"title":"Default Title","offer_id":53842802442515,"sku":"21325302B","price":3947.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/9856\/2835\/files\/c9d94dc2-5095-57df-9ac4-5deea50076c7__90809.1662724432.1280.1280.png?v=1771411032"},{"product_id":"2-cla-val-39bww-316ss-threaded-wastewater-service","title":"2\" Cla-Val 39BWW (316SS, THREADED, WASTEWATER SERVICE)","description":"\u003cp\u003e· Cla-Val 39 Series Anti-Slam Air Release and Vacuum Breaker Valves protect piping and equipment against water hammer, surge conditions and vacuum formation during filling or draining operations. Often installed adjacent to pumps or at high points in a pipeline, they perform the following four functions in potable water, raw water and sewage applications. Features and further details High Volume Air Discharge: During filling of the pipeline, air passes through the air valve at the same flow rate as water in the pipeline, the floats remain in the open position allowing air to pass freely through the valve. When water enters the valve the floats are buoyed and the valve closes. Anti Slam Air Discharge: During rapid filling, pump trip, rapid valve closure and other surge events. The valve will switch into anti slam mode. Switching from the larger orifice to a smaller anti slam orifice. The smaller orifice will restrict the rate at which air can escape the pipeline and as a result show the flowrate of water through the pipeline. Air passes around the lower float and small orifice float through the anti slam orifice to atmosphere. Pressurized Air Release: During normal operation, while the pipeline is fully charged, disentrained air will accumulate at many air valve locations. When the quantity of air is sufficient to displace the control float, the float will drop away from the small orifice (nozzle) and release the accumulated air. The control float will then buoy back into place and seal off the small orifice. Vacuum Break: During the draining, pump stoppage or pump trip, the floats will gravitate towards the baffle plate. Air will travel through the large orifice, past the floats and through the intake orifice into the pipeline.\u003c\/p\u003e\n","brand":"Lehigh Valley Valve","offers":[{"title":"Default Title","offer_id":53842802475283,"sku":"21325301C","price":3634.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/9856\/2835\/files\/c9d94dc2-5095-57df-9ac4-5deea50076c7__11324.1662724477.1280.1280.png?v=1771411033"},{"product_id":"2-cla-val-39-series-air-valve-316-ss-flanged-water-service","title":"2\" Cla-Val 39 Series Air Valve - 316 SS - Flanged - Water Service","description":"\u003cp\u003e· Cla-Val 39 Series Anti-Slam Air Release and Vacuum Breaker Valves protect piping and equipment against water hammer, surge conditions and vacuum formation during filling or draining operations. Often installed adjacent to pumps or at high points in a pipeline, they perform the following four functions in potable water, raw water and sewage applications.\u003cbr\u003e\n\u003cbr\u003e\nFeatures and further details\u003cbr\u003e\n\u003cbr\u003e\nHigh Volume Air Discharge: During filling of the pipeline, air passes through the air valve at the same flow rate as water in the pipeline, the floats remain in the open position allowing air to pass freely through the valve. When water enters the valve the floats are buoyed and the valve closes.\u003cbr\u003e\n\u003cbr\u003e\nAnti Slam Air Discharge: During rapid filling, pump trip, rapid valve closure and other surge events. The valve will switch into anti slam mode. Switching from the larger orifice to a smaller anti slam orifice. The smaller orifice will restrict the rate at which air can escape the pipeline and as a result show the flowrate of water through the pipeline. Air passes around the lower float and small orifice float through the anti slam orifice to atmosphere.\u003cbr\u003e\n\u003cbr\u003e\nPressurized Air Release: During normal operation, while the pipeline is fully charged, disentrained air will accumulate at many air valve locations. When the quantity of air is sufficient to displace the control float, the float will drop away from the small orifice (nozzle) and release the accumulated air. The control float will then buoy back into place and seal off the small orifice.\u003cbr\u003e\n\u003cbr\u003e\nVacuum Break: During the draining, pump stoppage or pump trip, the floats will gravitate towards the baffle plate. Air will travel through the large orifice, past the floats and through the intake orifice into the pipeline.\u003c\/p\u003e\n","brand":"Lehigh Valley Valve","offers":[{"title":"Default Title","offer_id":53842802508051,"sku":"21303009E","price":2090.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/9856\/2835\/files\/c9d94dc2-5095-57df-9ac4-5deea50076c7__45013.1662724510.1280.1280.png?v=1771411035"},{"product_id":"2-cla-val-39-series-air-valve-316-ss-threaded-water-service","title":"2\" Cla-Val 39 Series Air Valve - 316 SS - Threaded - Water Service","description":"\u003cp\u003e· Cla-Val 39 Series Anti-Slam Air Release and Vacuum Breaker Valves protect piping and equipment against water hammer, surge conditions and vacuum formation during filling or draining operations. Often installed adjacent to pumps or at high points in a pipeline, they perform the following four functions in potable water, raw water and sewage applications.\u003cbr\u003e\n\u003cbr\u003e\nFeatures and further details\u003cbr\u003e\n\u003cbr\u003e\nHigh Volume Air Discharge: During filling of the pipeline, air passes through the air valve at the same flow rate as water in the pipeline, the floats remain in the open position allowing air to pass freely through the valve. When water enters the valve the floats are buoyed and the valve closes.\u003cbr\u003e\n\u003cbr\u003e\nAnti Slam Air Discharge: During rapid filling, pump trip, rapid valve closure and other surge events. The valve will switch into anti slam mode. Switching from the larger orifice to a smaller anti slam orifice. The smaller orifice will restrict the rate at which air can escape the pipeline and as a result show the flowrate of water through the pipeline. Air passes around the lower float and small orifice float through the anti slam orifice to atmosphere.\u003cbr\u003e\n\u003cbr\u003e\nPressurized Air Release: During normal operation, while the pipeline is fully charged, disentrained air will accumulate at many air valve locations. When the quantity of air is sufficient to displace the control float, the float will drop away from the small orifice (nozzle) and release the accumulated air. The control float will then buoy back into place and seal off the small orifice.\u003cbr\u003e\n\u003cbr\u003e\nVacuum Break: During the draining, pump stoppage or pump trip, the floats will gravitate towards the baffle plate. Air will travel through the large orifice, past the floats and through the intake orifice into the pipeline.\u003c\/p\u003e\n","brand":"Lehigh Valley Valve","offers":[{"title":"Default Title","offer_id":53842802540819,"sku":"21303002B","price":1347.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/9856\/2835\/files\/c9d94dc2-5095-57df-9ac4-5deea50076c7__24071.1662724539.1280.1280.png?v=1771411036"},{"product_id":"33a-high-performance-combination-air-valve","title":"33A High Performance Combination Air Valve","description":"\u003ch1\u003e\u003cspan style=\"font-size: 18pt;\"\u003e33A High-Performance Air Release \u0026amp; Vacuum Breaker Valve\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12pt;\"\u003eDesigned to protect pipelines and vertical turbine pump applications from air lock and vacuum collapse, the Cla-Val Model 33A High-Performance Combination Air Release \u0026amp; Vacuum Breaker Valve eliminates air and prevents vacuum formations in waterworks piping systems. A large venting orifice and large float clearances freely exhaust or admit air during pipeline filling or draining.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12pt;\"\u003e• Standard Maximum Operating Pressure 300 psi\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12pt;\"\u003e • Standard Epoxy Coated Ductile Iron Body \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12pt;\"\u003e• Automatically Eliminates Entrapped Air Pockets and Provides Vacuum Protection\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12pt;\"\u003e • Easily Serviced\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12pt;\"\u003e • Tested to Seal at 2 psi\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12pt;\"\u003e • Meets AWWA C512 \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12pt;\"\u003eRequirements Designed to protect pipelines and vertical turbine pump applications from air lock and vacuum collapse, the Cla-Val Model 33A High Performance Combination Air Release and Vacuum Breaker Valve eliminates air and prevents vacuum formations in pipelines. A large venting orifice and large float clearances freely exhaust or admits air during pipeline filling or draining. NSF\/ANSI 61 \u0026amp; 372 During normal pipeline operation, air accumulation and buoyancy cause the float ball to lower or lift. As the water level lowers inside the valve, small amounts of accumulated air are released through the small orifice. Once air is released, the float poppet system closes drip tight. Valve servicing is simple because the entire float poppet system can be replaced without removal of the valve body from the pipeline.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Lehigh Valley Valve","offers":[{"title":"1\" Stock # 25607D","offer_id":53842916507923,"sku":"25607D","price":983.84,"currency_code":"USD","in_stock":true},{"title":"2\" Stock # 27431G","offer_id":53842916540691,"sku":"27431G","price":1492.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/9856\/2835\/files\/33a_th__13901.1737228645.1280.1280.jpg?v=1771411898"}],"url":"https:\/\/lehighvalleyvalve.myshopify.com\/collections\/air-release.oembed","provider":"Lehigh Valley Valve","version":"1.0","type":"link"}