{"title":"Diaphragm Valves","description":"\u003ch2\u003eDiaphragm Valves  Flexible, Reliable and Corrosion Resistant Flow Control\u003c\/h2\u003e\u003cp\u003eOur diaphragm valves are versatile flow control components designed for precise regulation and reliable shut-off of liquids, gases, and slurries. Unlike traditional valves that use a gate or ball mechanism, diaphragm valves use a flexible diaphragm that presses against a weir or seat to stop flow. This design makes them particularly effective for handling corrosive, abrasive, and viscous fluids, as well as applications where cleanliness and leak prevention are critical.\u003cspan id=\"dots\"\u003e...\u003c\/span\u003e\u003c\/p\u003e\u003cspan id=\"more\"\u003e\u003cp\u003eAvailable in a range of materials including PVC, ABS, stainless steel, and cast iron, diaphragm valves are widely used in industries such as chemical processing, water treatment, pharmaceuticals, food and beverage, and industrial manufacturing. Their simple operation, durability, and resistance to contamination make them a trusted choice in both industrial and commercial systems.\u003c\/p\u003e\n\u003ch3\u003eFeatures and Benefits of Diaphragm Valves\u003c\/h3\u003e\n\u003cp\u003eDiaphragm valves offer a unique combination of features that make them highly effective in demanding environments.\u003c\/p\u003e\n\u003cp\u003eOne of the primary benefits is their superior sealing capability. The flexible diaphragm creates a leak-tight closure, reducing the risk of leakage even in systems handling corrosive or hazardous fluids. This makes them ideal for chemical processing and water treatment applications where safety is paramount.\u003c\/p\u003e\n\u003cp\u003eAnother important advantage is contamination prevention. Because the diaphragm isolates the fluid from the valve body and operating mechanism, the risk of contamination is significantly reduced. This feature makes diaphragm valves particularly well suited to industries where purity is critical, such as pharmaceuticals, food processing, and potable water systems.\u003c\/p\u003e\n\u003cp\u003eDiaphragm valves are also highly versatile. They can be used for both on\/off and throttling applications, offering precise flow control across a wide range of pressures and temperatures. Their ability to handle slurries and viscous fluids makes them more adaptable than many other valve types.\u003c\/p\u003e\n\u003cp\u003eDurability is another strength. Manufactured from robust materials such as stainless steel and corrosion resistant plastics, diaphragm valves can withstand aggressive chemicals, abrasive materials, and continuous use in demanding systems.\u003c\/p\u003e\n\u003cp\u003eMaintenance is minimal compared to other valve types. With fewer moving parts and a simple design, diaphragm valves are less prone to wear. When required, diaphragms can be replaced easily without removing the valve body from the pipeline, reducing downtime and costs.\u003c\/p\u003e\n\u003ch3\u003eApplications of Diaphragm Valves\u003c\/h3\u003e\n\u003cp\u003eDiaphragm valves are used across a wide range of industries, providing reliable flow control in environments where other valve types may not perform effectively.\u003c\/p\u003e\n\u003cp\u003eIn chemical processing plants, diaphragm valves are trusted for handling acids, alkalis, and other aggressive chemicals. Their corrosion resistance and reliable sealing make them ideal for safety critical operations.\u003c\/p\u003e\n\u003cp\u003eIn water and wastewater treatment facilities, diaphragm valves are used to regulate flow, dose chemicals, and control distribution. Their ability to prevent leaks and handle contaminated fluids makes them a key component in these systems.\u003c\/p\u003e\n\u003cp\u003eIn pharmaceutical and biotechnology industries, diaphragm valves are widely used due to their hygienic design and ability to prevent contamination. Many models are available with sanitary connections, making them compliant with strict cleanliness standards.\u003c\/p\u003e\n\u003cp\u003eIn food and beverage production, diaphragm valves ensure that liquids and slurries are transported safely without risk of contamination. Their smooth internal surfaces and isolation of the operating mechanism make them suitable for hygienic environments.\u003c\/p\u003e\n\u003cp\u003eIn industrial manufacturing, diaphragm valves are relied upon for handling abrasive slurries, viscous fluids, and process water. Their robustness and adaptability make them suitable for heavy duty applications.\u003c\/p\u003e\n\u003cp\u003eIn mining and mineral processing, diaphragm valves are used to manage slurry flow. Their abrasion resistance and simple design make them more reliable than alternatives in these tough conditions.\u003c\/p\u003e\n\u003ch3\u003eInstallation, Handling and Long Term Value\u003c\/h3\u003e\n\u003cp\u003eDiaphragm valves are designed for straightforward installation, simple operation, and long term reliability.\u003c\/p\u003e\n\u003cp\u003eThey are available in multiple connection types, including threaded, flanged, and solvent weld options, ensuring compatibility with a wide range of piping systems. Installation is quick and does not require complex tools, making diaphragm valves a practical choice for both small and large projects.\u003c\/p\u003e\n\u003cp\u003eOperation is simple and reliable. Manual diaphragm valves are controlled by a handwheel or lever, while automated versions can be fitted with pneumatic or electric actuators for remote control. This makes them suitable for both basic and advanced systems.\u003c\/p\u003e\n\u003cp\u003eMaintenance requirements are low. The diaphragm itself is the primary wear component, and replacing it is straightforward without removing the valve body. This reduces downtime and maintenance costs significantly compared to other valve types.\u003c\/p\u003e\n\u003cp\u003eFrom a financial perspective, diaphragm valves provide excellent long term value. Their durable design, resistance to corrosion and abrasion, and minimal maintenance requirements reduce overall lifecycle costs. Their adaptability across industries and applications makes them a cost effective choice for contractors, engineers, and facility managers.\u003c\/p\u003e\n\u003cp\u003eSustainability is another advantage. By providing reliable leak prevention, diaphragm valves reduce waste and protect the environment from contamination. Many models are also manufactured from recyclable materials, supporting sustainable system design.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose Our Diaphragm Valves\u003c\/h3\u003e\n\u003cp\u003eWe supply a comprehensive range of diaphragm valves suitable for domestic, commercial, and industrial applications. Our selection includes manual and actuated valves in a variety of materials, sizes, and pressure ratings to meet the needs of different industries.\u003c\/p\u003e\n\u003cp\u003eAll of our diaphragm valves are manufactured to strict quality standards, ensuring durability, leak free performance, and long service life. Options are available in PVC, ABS, stainless steel, and cast iron, providing flexibility for both standard and aggressive environments.\u003c\/p\u003e\n\u003cp\u003eOur valves are available with threaded, flanged, and solvent weld connections, ensuring compatibility with existing systems. Many models include features such as reinforced diaphragms, high temperature resistance, and sanitary designs for food and pharmaceutical use.\u003c\/p\u003e\n\u003cp\u003eWe maintain strong stock availability and provide fast delivery across the UK, helping customers access the valves they need quickly. Our technical team is also available to provide expert advice on product selection, installation methods, and maintenance practices.\u003c\/p\u003e\n\u003cp\u003eBy choosing our diaphragm valves, you are investing in high quality products that deliver performance, reliability, and excellent long term value.\u003c\/p\u003e\n\u003ch3\u003eFinal Thoughts\u003c\/h3\u003e\n\u003cp\u003eDiaphragm valves are an essential solution for reliable, precise, and contamination free flow control. Their flexible design, hygienic operation, and ability to handle corrosive, abrasive, and viscous fluids make them indispensable across industries from chemical processing and water treatment to food production and pharmaceuticals.\u003c\/p\u003e\n\u003cp\u003eWith their durability, ease of maintenance, and superior sealing capabilities, diaphragm valves represent a cost effective and sustainable choice for both small and large systems. Their adaptability ensures they remain one of the most reliable valve types in modern fluid management.\u003c\/p\u003e\n\u003cp\u003eBy selecting our range of diaphragm valves, you gain access to high quality products, dependable delivery, and expert technical support. This ensures that your systems remain efficient, safe, and reliable for many years to come.\u003c\/p\u003e\u003c\/span\u003e\u003cbutton class=\"read-button\" id=\"myBtn\" onclick=\"myFunction()\"\u003eRead More\u003c\/button\u003e\u003cstyle\u003e#more { display: none; }.read-button {    background: #1656a6;    line-height: 37px;    padding: 3px 21px;    max-width: 142px;    text-align: center;    color: #fff;    border: none;    cursor: pointer;    font-weight: 600;    font-family: inherit;}.read-button:hover {    background: #1656a6;}\u003c\/style\u003e\u003cscript\u003efunction myFunction() {  var dots = document.getElementById(\"dots\");  var moreText = document.getElementById(\"more\");  var btnText = document.getElementById(\"myBtn\");  if (window.getComputedStyle(moreText).display === \"none\") {    dots.style.display = \"none\";    moreText.style.display = \"inline\";    btnText.innerHTML = \"Read Less\";   } else {    dots.style.display = \"inline\";    moreText.style.display = \"none\";    btnText.innerHTML = \"Read More\";   }}\u003c\/script\u003e","products":[{"product_id":"weir-type-diaphragm-valve-unlined-screwed-bspp-12548-p-asp","title":"Weir Type Diaphragm Valve  Unlined  Screwed BSPP","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2 data-end=\"779\" data-start=\"724\"\u003eWeir Type Diaphragm Valve  Unlined  Screwed BSPP\u003c\/h2\u003e\u003cp data-end=\"1254\" data-start=\"781\"\u003e\u003cstrong data-end=\"796\" data-start=\"781\"\u003eDescription\u003c\/strong\u003e\u003cbr data-end=\"799\" data-start=\"796\"\u003eThis screwed BSPP weir-type diaphragm valve is ideal for compact and lower-pressure systems where threaded connections allow easy installation and removal. The unlined valve body and elastomer diaphragm provide effective flow isolation without the need for metal seats, reducing wear in services with particulates or slurries. It is particularly well suited to water treatment, chemical dosing, compressed air, and general industrial process applications.\u003c\/p\u003e\u003cp data-end=\"1276\" data-start=\"1256\"\u003e\u003cstrong data-end=\"1274\" data-start=\"1256\"\u003eTechnical Data\u003c\/strong\u003e\u003c\/p\u003e\u003cul data-end=\"1708\" data-start=\"1277\"\u003e\n\u003cli data-end=\"1322\" data-start=\"1277\"\u003e\n\u003cstrong data-end=\"1294\" data-start=\"1279\"\u003eValve Type:\u003c\/strong\u003e Weir-type diaphragm valve\u003c\/li\u003e\n\u003cli data-end=\"1381\" data-start=\"1323\"\u003e\n\u003cstrong data-end=\"1343\" data-start=\"1325\"\u003eBody Material:\u003c\/strong\u003e Ductile iron\u003c\/li\u003e\n\u003cli data-end=\"1452\" data-start=\"1382\"\u003e\n\u003cstrong data-end=\"1407\" data-start=\"1384\"\u003eDiaphragm Material:\u003c\/strong\u003e EPDM\u003c\/li\u003e\n\u003cli data-end=\"1500\" data-start=\"1453\"\u003e\n\u003cstrong data-end=\"1471\" data-start=\"1455\"\u003eConnections:\u003c\/strong\u003e Screwed BSPP threaded ends\u003c\/li\u003e\n\u003cli data-end=\"1564\" data-start=\"1501\"\u003e\n\u003cstrong data-end=\"1523\" data-start=\"1503\"\u003ePressure Rating:\u003c\/strong\u003e Up to PN16\u003c\/li\u003e\n\u003cli data-end=\"1644\" data-start=\"1565\"\u003e\n\u003cstrong data-end=\"1589\" data-start=\"1567\"\u003eTemperature Range:\u003c\/strong\u003e 10 °C to +120 °C (diaphragm and elastomer dependent)\u003c\/li\u003e\n\u003cli data-end=\"1708\" data-start=\"1645\"\u003e\n\u003cstrong data-end=\"1661\" data-start=\"1647\"\u003eActuation:\u003c\/strong\u003e Manual handwheel (lever or gearbox optional)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp data-end=\"1728\" data-start=\"1710\"\u003e\u003cstrong data-end=\"1726\" data-start=\"1710\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul data-end=\"1956\" data-start=\"1729\"\u003e\n\u003cli data-end=\"1806\" data-start=\"1729\"\u003eFlexible diaphragm provides tight shut-off with no metal-to-metal contact\u003c\/li\u003e\n\u003cli data-end=\"1867\" data-start=\"1807\"\u003eScrewed BSPP ends for compact and versatile installation\u003c\/li\u003e\n\u003cli data-end=\"1917\" data-start=\"1868\"\u003eExcellent isolation and throttling properties\u003c\/li\u003e\n\u003cli data-end=\"1956\" data-start=\"1918\"\u003eLow maintenance  few moving parts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp data-end=\"2253\" data-start=\"1958\"\u003e\u003cstrong data-end=\"1994\" data-start=\"1958\"\u003eInstallation \u0026amp; Application Notes\u003c\/strong\u003e\u003cbr data-end=\"1997\" data-start=\"1994\"\u003eEnsure correct diaphragm selection for service media and temperature. Install the valve where threaded ends can be fully engaged without excessive mechanical stress. Ideal for potable water, chemical feed, slurry handling, and low-pressure utility systems.\u003c\/p\u003e","brand":"Pipetech","offers":[{"title":"1\/2\"","offer_id":53964102041942,"sku":"V585204","price":77.51,"currency_code":"GBP","in_stock":true},{"title":"3\/4\"","offer_id":53964102074710,"sku":"V585205","price":83.79,"currency_code":"GBP","in_stock":true},{"title":"1\"","offer_id":53964102107478,"sku":"V585206","price":106.84,"currency_code":"GBP","in_stock":true},{"title":"11\/4\"","offer_id":53964102140246,"sku":"V585207","price":138.25,"currency_code":"GBP","in_stock":true},{"title":"11\/2\"","offer_id":53964102173014,"sku":"V585208","price":173.87,"currency_code":"GBP","in_stock":true},{"title":"2\"","offer_id":53964102205782,"sku":"V585209","price":195.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1029\/5148\/5782\/files\/weir-type-diaphragm-valve-unlined-screwed-bspp-12548-p.jpg?v=1779450014"},{"product_id":"weir-type-diaphragm-valve-unlined-flanged-pn16-12549-p-asp","title":"Weir Type Diaphragm Valve  Unlined  Flanged PN16","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2 data-end=\"2315\" data-start=\"2260\"\u003eWeir Type Diaphragm Valve  Unlined  Flanged PN16\u003c\/h2\u003e\u003cp data-end=\"2821\" data-start=\"2317\"\u003e\u003cstrong data-end=\"2332\" data-start=\"2317\"\u003eDescription\u003c\/strong\u003e\u003cbr data-end=\"2335\" data-start=\"2332\"\u003eThe flanged PN16 weir-type diaphragm valve combines the rugged performance of diaphragm control with the strength and sealing integrity required for larger or higher-pressure pipe networks. The flanged ends conform to PN16 standards, allowing secure bolted installation in industrial, chemical, and process systems. This variation maintains the core advantage of diaphragm isolation  no moving metal contact with the fluid  while supporting bigger bore sizes and heavier duty service.\u003c\/p\u003e\u003cp data-end=\"2843\" data-start=\"2823\"\u003e\u003cstrong data-end=\"2841\" data-start=\"2823\"\u003eTechnical Data\u003c\/strong\u003e\u003c\/p\u003e\u003cul data-end=\"3227\" data-start=\"2844\"\u003e\n\u003cli data-end=\"2889\" data-start=\"2844\"\u003e\n\u003cstrong data-end=\"2861\" data-start=\"2846\"\u003eValve Type:\u003c\/strong\u003e Weir-type diaphragm valve\u003c\/li\u003e\n\u003cli data-end=\"2938\" data-start=\"2890\"\u003e\n\u003cstrong data-end=\"2910\" data-start=\"2892\"\u003eBody Material:\u003c\/strong\u003e Cast iron or ductile iron\u003c\/li\u003e\n\u003cli data-end=\"2999\" data-start=\"2939\"\u003e\n\u003cstrong data-end=\"2964\" data-start=\"2941\"\u003eDiaphragm Material:\u003c\/strong\u003e EPDM\/NBR or compatible elastomer\u003c\/li\u003e\n\u003cli data-end=\"3033\" data-start=\"3000\"\u003e\n\u003cstrong data-end=\"3018\" data-start=\"3002\"\u003eConnections:\u003c\/strong\u003e Flanged PN16\u003c\/li\u003e\n\u003cli data-end=\"3072\" data-start=\"3034\"\u003e\n\u003cstrong data-end=\"3056\" data-start=\"3036\"\u003ePressure Rating:\u003c\/strong\u003e Rated PN16 1\" to 2\", PN10 2½\" to 6\"\u003c\/li\u003e\n\u003cli data-end=\"3151\" data-start=\"3073\"\u003e\n\u003cstrong data-end=\"3097\" data-start=\"3075\"\u003eTemperature Range:\u003c\/strong\u003e 10 °C to +120 °C (depending on diaphragm elastomer)\u003c\/li\u003e\n\u003cli data-end=\"3227\" data-start=\"3152\"\u003e\n\u003cstrong data-end=\"3168\" data-start=\"3154\"\u003eActuation:\u003c\/strong\u003e Manual handwheel; gearbox or pneumatic operator optional\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp data-end=\"3247\" data-start=\"3229\"\u003e\u003cstrong data-end=\"3245\" data-start=\"3229\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul data-end=\"3497\" data-start=\"3248\"\u003e\n\u003cli data-end=\"3312\" data-start=\"3248\"\u003ePN16 flanged ends for secure installation in larger pipework\u003c\/li\u003e\n\u003cli data-end=\"3375\" data-start=\"3313\"\u003eDiaphragm design eliminates metal-to-metal dynamic contact\u003c\/li\u003e\n\u003cli data-end=\"3429\" data-start=\"3376\"\u003eExcellent for throttling and full shut-off duties\u003c\/li\u003e\n\u003cli data-end=\"3497\" data-start=\"3430\"\u003eSuitable for a broad range of clean and mildly corrosive fluids\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp data-end=\"3837\" data-start=\"3499\"\u003e\u003cstrong data-end=\"3535\" data-start=\"3499\"\u003eInstallation \u0026amp; Application Notes\u003c\/strong\u003e\u003cbr data-end=\"3538\" data-start=\"3535\"\u003eMatch flange drilling and gasket class to system design. Confirm diaphragm elastomer compatibility with the process fluid and temperature. These valves are well suited for water works, bulk chemical handling, wastewater, slurry batching, and systems demanding low contamination and easy maintenance.\u003c\/p\u003e","brand":"Pipetech","offers":[{"title":"1\"","offer_id":53964102336854,"sku":"V5861PN06","price":138.25,"currency_code":"GBP","in_stock":true},{"title":"11\/4\"","offer_id":53964102369622,"sku":"V5861PN07","price":183.29,"currency_code":"GBP","in_stock":true},{"title":"11\/2\"","offer_id":53964102402390,"sku":"V5861PN08","price":218.9,"currency_code":"GBP","in_stock":true},{"title":"2\"","offer_id":53964102435158,"sku":"V5861PN09","price":272.32,"currency_code":"GBP","in_stock":true},{"title":"21\/2\"","offer_id":53964102467926,"sku":"V5861PN10","price":385.43,"currency_code":"GBP","in_stock":true},{"title":"3\"","offer_id":53964102500694,"sku":"V5861PN11","price":520.55,"currency_code":"GBP","in_stock":true},{"title":"4\"","offer_id":53964102533462,"sku":"V5861PN12","price":777.16,"currency_code":"GBP","in_stock":true},{"title":"6\"","offer_id":53964102566230,"sku":"V5861PN14","price":1422.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1029\/5148\/5782\/files\/weir-type-diaphragm-valve-unlined-flanged-pn16-12549-p.jpg?v=1779450016"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1029\/5148\/5782\/collections\/diaphragm-valves-177-c.png?v=1779523543","url":"https:\/\/pipetech.org.uk\/collections\/diaphragm-valves-177-c-asp.oembed","provider":"Pipetech Supplies","version":"1.0","type":"link"}