Demco Gate Valve

Kami stok dan jual DEMCO Series DM ANSI/ API Gate Valve Jakarta Indonesia.

DEMCO® Gate Valves DEMCO® gate valves are the valves of choice, engineered and proven for drilling and production industries. Designed for dependable, heavy duty performance in abrasive and corrosive service conditions, Demco gate valves are commonly selected for a number of oilfield applications DEMCO® in Production: DEMCO® Gate Valves feature in-line field repairability, heavy duty roller bearings and floating slab gate design. Designed for dependable, heavy duty per-formance in abrasive service conditions, DEMCO® DM gate valves are commonly selected for a number of oilfield applications, including: Pump manifold block valves High pressure mud mixing lines Standpipe manifolds High pressure drilling system block valves Wellheads Well treating and frac service Production manifolds Production gathering systems Production flow lines The Demco series DM gate valve is offered in two basic pressure classes: The ANSI series valves conform to the standard flange dimension and pressure requirements for ANSI classes 400, 600, 900 and 1500. Except for the 4" class 1500, these valves are designed with economical, double acting threaded stem & gate. The 4" 1500 use the same rising stem design used in the 4" 3000 API series valve. The API series valves conform to the standard flange and pressure requirements for API classes 2000, 3000 and 5000. Except for the 4" and larger API 5000, these valves are designed with heavy duty, double acting rising stems. Both series are offered with threaded, weld and flanged end connections. End connection availability varies by size and pressure based on market requirements. Some sizes in the ANSI series are offered with grooved end connections. DEMCO® GATE VALVES SERIES DM DEMCO Series DM Gate Valves, the premier designed Gate Valve in the oil and gas drilling market, specifically engineered for the rigorous requirements of oilfield applications. Designed for dependable, heavy duty performance in abrasive service conditions, DEMCO DM gate valves are commonly selected for a number of oilfield applications, including: Features and Benefits In-line Field Repairability The bonnet is easily removed for internal parts inspection and / or replacement without removing the valve from the line. This design simplicity permits fast and easy service without the need for special tools. Flexible Trim Offerings Optional materials for stems, gates, seat inserts and seat elastomers make it easier to trim valves for a wide range of service conditions. Three internal plastic coatings for the body and bonnet are offered to improve resistance to wear and corrosion. Double Acting Thread Design for Fast Operation A The ASME series double acting thread design uses a threaded stem into the gate working with threads in the bonnet and handle assembly. Stems are polished and include a dependable O-ring and anti-extrusion seal. This unique design is economical and effective. Note: 4 inch ( 100 mm) ASME Class 1500 valve is a double acting, rising stem design, similar to the 4 inch ( 100 mm) 3000 psi valve. B The DM 2000, 3000 and 5000 psig working pressure valves have double acting threads working together in a specially designed stem screw, screw housing and stem arrangement ( except 4 inch ( 100 mm and larger 5000 psi is a single thread, heavy duty rising stem design with bearings) . C The rising stem design protects the stem threads from the lading. Dlarger 3000 and 5000 psi DM Gate Valves include a sight lens to view the stem for determining gate position. • Drilling standpipe manifold • Pump manifold block valves • High pressure mud mixing lines • High pressure drilling system block valves • Wellheads • Well treating and frac service • Production manifolds • Production gathering systems • Production flow lines The DEMCO Series DM Gate Valves are available in ASME Classes 400, 600, 900 and 1500. Also available in API working pressures 2000, 3000 and 5000 psig. ( Not API Monogrammed) . DEMCO® GATE VALVES SERIESDM 1000 - 5000 PSI Exclusive Seat Design for Drop Tight Sealing The DEMCO Series DM Gate Valve seat uses a unique design to provide a drop-tight shut-off in abrasive and erosive service. E The seat consists of two identical metal wear rings encapsulated in elastomer to form a cylindrical shape with a gate slot and two round ports. The closed gate bears on the downstream wear ring while the elastomer provides a drop tight pressure responsive seal around the port. F The cylindrical seat assembly fits into the machined body cavity and is expanded outward towards the valve ports by the bonnet and spread ring in the bottom of the seat. The expansion occurs when the bonnet is tightened on to the body while engaging the seat pin extensions from both wear rings. The spread ring ensures the seat elastomer presses uniformly against the body bore. This design ensures a tight seat seal against the body and around each valve port and has proven to be effective even if the gate and seat ring become scored or abraded during service. When it comes time for maintenance, the seat’ s single piece design makes it easy to pull out of the body for replacement. DEMCO Series DM ANSI/ API Gate Valve comes with 1 1/ 2 inch, 2 inch, 2 1/ 2 inch, 3 inch, 4 inch, 5 inch, 6 inch size and 1000 psi, 2000 psi, 3000 psi, 5000 psi, 7500 psi work pressure rate