{"id":1447,"date":"2026-01-07T15:53:11","date_gmt":"2026-01-07T07:53:11","guid":{"rendered":"https:\/\/www.cnrwflow.com\/?post_type=product&p=1447"},"modified":"2026-04-22T13:22:45","modified_gmt":"2026-04-22T05:22:45","slug":"precision-pressure-reducing-valves-for-reliable-flow-control","status":"publish","type":"product","link":"https:\/\/www.cnrwflow.com\/index.php\/product\/precision-pressure-reducing-valves-for-reliable-flow-control\/","title":{"rendered":"Precision Pressure Reducing Valves for Reliable Flow Control"},"content":{"rendered":"\n\n\n\n\n\n\n\n\n\n\n
Pressure reducing valve size table<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\nUnit\uff1a<\/td>\nmm<\/td>\n<\/tr>\n
Model<\/td>\nNorm<\/td>\nL<\/td>\nH<\/td>\nD<\/td>\nh<\/td>\nd<\/td>\nz<\/td>\n<\/tr>\n
18815<\/td>\nDN15<\/td>\n170<\/td>\n172<\/td>\n82<\/td>\n27<\/td>\n20<\/td>\n21<\/td>\n<\/tr>\n
18820<\/td>\nDN20<\/td>\n170<\/td>\n172<\/td>\n82<\/td>\n27<\/td>\n25<\/td>\n21<\/td>\n<\/tr>\n
18825<\/td>\nDN25<\/td>\n212<\/td>\n202<\/td>\n107<\/td>\n35<\/td>\n32<\/td>\n26<\/td>\n<\/tr>\n
18832<\/td>\nDN32<\/td>\n226<\/td>\n202<\/td>\n107<\/td>\n35<\/td>\n40<\/td>\n28.5<\/td>\n<\/tr>\n
18840<\/td>\nDN40<\/td>\n292<\/td>\n259<\/td>\n148<\/td>\n58<\/td>\n50<\/td>\n37<\/td>\n<\/tr>\n
18850<\/td>\nDN50<\/td>\n305<\/td>\n259<\/td>\n148<\/td>\n58<\/td>\n63<\/td>\n37<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Pressure reducing valve installation and maintenance instructions<\/td>\n<\/tr>\n
Installation and Usage Instructions<\/td>\nValve body parameters<\/td>\n<\/tr>\n
Install<\/td>\nFlow direction should be consistent with the arrow direction on the valve body.<\/td>\n\u00a0Body material<\/td>\nUPVC\u3001CPVC\u3001PP<\/td>\n<\/tr>\n
Check valve body pressure<\/td>\nUse a neutral medium to check the pressure, such as water.<\/td>\nDiameter<\/td>\nDN15~DN50<\/td>\n<\/tr>\n
Test pressure < permissible equipment pressure.<\/td>\nPressure<\/td>\n1.0Mpa<\/td>\n<\/tr>\n
Test pressure < 1.5PN.<\/td>\nDiaphragm material<\/td>\nPTFE+Composite rubber<\/td>\n<\/tr>\n
Test pressure < PN + 5 bar to check valve seal.<\/td>\nConnection method<\/td>\nAdhesive bonding, Hot melt bonding, Thread, Flange<\/td>\n<\/tr>\n
Set pressure<\/td>\nFactory default value: 1 bar (other default values \u200b\u200bcan be agreed upon with the manufacturer).<\/td>\nOutput pressure<\/td>\n1~9bar<\/td>\n<\/tr>\n
The pressure relief valve must be set according to the environmental conditions that will be used in the future.<\/td>\nMaintenance and Repair<\/td>\n<\/tr>\n
Recommended setup: Install a diaphragm pressure gauge at the front end of the pressure reducing valve.<\/td>\nMaintenance<\/td>\nThe normal operating condition remains unchanged, and the sealing performance is normal.<\/td>\n<\/tr>\n
Step:<\/td>\nOperating noise and vibration;<\/td>\n<\/tr>\n
1. Remove the protective cover of the adjusting bolt and loosen the bottom locking nut.<\/td>\nTighten the housing bolts to the specified torque, and clean the valve with a damp cloth as needed.<\/td>\n<\/tr>\n
2. Rotate the adjusting bolt counterclockwise until you can clearly feel the compression spring completely released.<\/td>\n\u00a0Repair<\/td>\nProtective equipment should be properly installed as required, media should be safely recycled, and hazardous waste should be disposed of in an environmentally friendly manner.<\/td>\n<\/tr>\n
3. Start the equipment and rotate the adjusting bolt clockwise until the desired equipment pressure is reached.<\/td>\nRemove the valves to ensure the equipment is emptied, depressurized, and cooled.<\/td>\n<\/tr>\n
4. Use a box wrench to hold the adjusting bolt in place while tightening the lock nut, then install the protective cover.<\/td>\nEnsure the equipment will not restart, then remove the valve from the pipeline.<\/td>\n<\/tr>\n
5. If necessary, the adjusting bolts can be sealed with lead to prevent unauthorized adjustments.<\/td>\nWhen it is necessary to disassemble a valve, be aware that there may still be media in the dead corners of the valve.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"
precision pressure reducing valves for reliable flow control<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

Engineered for durability with UPVC\/CPVC\/PP bodies and PTFE composite diaphragms, offering adjustable output from 1 to 9 bar.<\/p>\n

    \n
  • \n

    Factory set at 1 bar, field-adjustable from 1 to 9 bar<\/strong>\u00a0to meet your precise system requirements.<\/p>\n<\/li>\n

  • \n

    \u00a0Features corrosion-resistant polymer bodies<\/strong>\u00a0(UPVC\/CPVC\/PP) and a\u00a0long-life PTFE composite diaphragm<\/strong>\u00a0for reliable operation.<\/p>\n<\/li>\n

  • \n

    Supports multiple connection methods<\/strong>\u00a0(adhesive, hot melt, thread, flange) and handles neutral media like water.<\/p>\n<\/li>\n

  • \n

    Designed with a secure adjustment mechanism<\/strong>\u00a0(lock nut + optional lead seal) and built to withstand standard pressure tests.<\/p>\n<\/li>\n

  • \n

    Features a straightforward adjustment process<\/strong>\u00a0and durable construction for minimal upkeep.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"featured_media":1505,"template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"Pressure regulating valve\/pressure reducing valve that can reduce and stabilize the pressure in plastic pipes","_seopress_robots_index":""},"product_brand":[],"product_cat":[37,36],"product_tag":[114,119,116,115,112,111,113,117,118],"class_list":{"0":"post-1447","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-fluid-control","7":"product_cat-fluid-system","8":"product_tag-adjustable-pvc-pressure-valve","9":"product_tag-chemical-resistant-pressure-control-valv","10":"product_tag-corrosion-resistant-pressure-regulato","11":"product_tag-cpvc-pressure-reducing-valve","12":"product_tag-plastic-pressure-regulator-valve","13":"product_tag-pvc-pressure-reducing-valve","14":"product_tag-pvc-prv-valve","15":"product_tag-socket-end-pvc-prv","16":"product_tag-true-union-pvc-pressure-regulator","18":"first","19":"instock","20":"shipping-taxable","21":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.cnrwflow.com\/index.php\/wp-json\/wp\/v2\/product\/1447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cnrwflow.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.cnrwflow.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cnrwflow.com\/index.php\/wp-json\/wp\/v2\/media\/1505"}],"wp:attachment":[{"href":"https:\/\/www.cnrwflow.com\/index.php\/wp-json\/wp\/v2\/media?parent=1447"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.cnrwflow.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=1447"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.cnrwflow.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=1447"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.cnrwflow.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=1447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}