Brass Auto Filling Valve Art:63001-63004 Material:  brass body, EPDM O-ring, brass stem, EPDM sealing gasket, EPDM sealing cover, Spring steel spring, Nylon handle, SS filter,brass screw, brass press nut,Steel screw,brass cartidge,brass inferior plug, brass bonnrt Size: 1/2" Specifications: 1.Minimum allowable working pressure(PS):  10 bar 2. Peset nominal pressure       0.5 bar-4bar 3. Overpressure        10% of the Pset 4. Reset Value     -20% of the Pset 5.Max.operation temperature: 80℃ 6.Pipeline connection:Treads according to ISO 228/1 Production: 1. Purchase brass material and hot forged the semi-products. 2. Process the semi-products in workshop. 3. Assemble the goods.  4. Test and inspect quality of the goods 5. Package. 6. Delive the goods on time.  Quality Control: 1. The whole course carries out ISO 9001 international quality system standard strictly. 2.All the goods tested before shipped, such as material test,machining test,pressure test,etc.. 3. Thread Standard: ISO228  4.Certificate: CE,ISO 9001,TUV,WRAS,ACS,ROHA,EN331 Packing: Standard export carton(Poly bag,inner box,carton). Also we can accept any demand of the packing from the customers Our Advantages: 1. We're a professional manufacturer and exporter of brass valves and fittings with more about 10 years'  producing experience. 2. Good quality with reasonable price. 3. Delivery on time. 4. We can produce the samples or the products according to customers requirements.