Product Details import trench trench Muffler check valve Muffler check valve imports import trench Muffler check valve is an overview of the giant yuan Germany to introduce advanced products of similar valves designed a new range of connection valve manufacturing. It has installed fast, easy, safe, reliable, free installation space is limited, piping and valves to facilitate maintenance, there is noise and vibration within a certain range of angles have to overcome the pipeline connecting the different axes and produce poor imitation solve temperature difference produce thermal expansion and contraction, etc. Widely used in transmission fluid pipe drainage, fire, air conditioning, gas, petroleum, chemical, water treatment, municipal, shipbuilding and other pipeline projects as the pilot fluid. Import trench Muffler check valve main parts Materials Product Type Material Body valve plate valve shaft sealing surface HT200 cast ductile iron, carbon steel, chrome steel or stainless steel spray or copper rubber NBR, NBR NBR, EPR EPOM, fluorine rubber PTFE, PTFE plastic F46 ductile iron QT450 ductile iron, carbon steel, stainless steel spray or copper chromium stainless steel or copper copper copper or stainless steel WCB chrome stainless steel ductile iron, carbon steel, chrome steel or stainless steel spray or Copper stainless steel 1Crl8Ni9T1 (304) Stainless steel steel imports trench Muffler check valve main technical parameters Nominal pressure 1.O 1.6 2.5 1.5 Shell strength test pressure sealing performance 1.1 2.4 3.75 1.76 2.75 Medium product type cast iron, ductile iron, copper carbon For medium stainless steel water, steam, oil, air-water, steam water, steam, oil, nitric acid and air temperature sealing surface material acetonitrile rubber ethylene propylene rubber Viton PTFE plastic copper stainless steel operating temperature ≤ 60 ≤80 ≤250 ≤250 ≤200 ≤200 ≤200 import trench Muffler check valve main external and connecting dimensions nominal diameter 50 65 80 100 125 150 200 250 300 350 400 450 500 600 - D 57 60 76 89 108 114 133 140 159 165 168 219 273 325 377 426 480 530 630 A1 14.5 14.5 14.5 16 16 16 19 19 19 25 25 25 25 25 -? B1 9.5 9.5 9.5 9.5 9.5 9.5 13 13 13 13 13 13 13 13 - C 2.2 2.2 2.2 2.2 2.2 2.2 2.5 2.5 3.3 3.3 5.5 5.5 55 55 - H81X L 140 140 150 80 - 220 258 332 370 - - - - - - Imported trench Muffler check valve orders: When ordering please specify the following:? 1, ① product name and model ② nominal diameter ③ ⑤ nominal rated flow coefficient KV④ working medium inlet pressure ⑦ ⑥ ⑧ connection with an attachment so that we can correct for your selection. 2. Please indicate any special requirements when ordering products. 3, if the unit has been selected by the design model, press model directly to our Sales Department Order. 4, when the occasion is very important or the environment is more complicated, you try to provide design drawings.