从２''-6'' The Demco DM Gate Valve, are solid gate, rising stem, gate valves with resilient seals. They are purpose made for mud, cement, fracturing and water service and are easy to operate and simple to maintain. The Demco DM Gate Valve, with superior design features precision workmanship and a proven principle are engineered to meet the harsh drilling requirements in today’s oilfield. ● Designed specifically for Abrasive and Erosive use ● All Valves Have Stainless Steel Stems ● API 6A PSL 1, 2 and 3 available ● Gates can be supplied in Nickel-Plated Carbon Steel, Monel, Aluminum Bronze or Stainless Steel ● Stainless or Carbon Steel Inserts with Nitrile or HNBR Elastomer ● Factory Pressure Tested in Accordance with API.6A ● Can be supplied with Flanged End Connections, Hammer Union Ends, Threaded Connections or Butt Weld Ends ● Sour Service Models to NACE MR-01-75 ● Available with Pressure Ratings up to 5,000 psi in 2", 3", 4", 5" x 4" and 6" x 4" Valve Sizes ● Full Material Traceability Guaranteed ● Supplied with Full Certification at no extra charge