Si-206
8Pages

Datasheet Butterfly valve for marine cargo systems Type MTV Wafer design Type MTVL Lugged design Nominal pressure PN 10 - 25 Class 150 Nominal size DN 80 - 400 Material Stainless steel triple • Advanceddesign eccentric manual • Designed foroperated and remote applications • Designed forup to applications 350° C (662 °F) • Tightness class inEN accordance with 60534-4 Class V as standard made • Solid seatsteel of stainless SOMAS butterfly valves, type MTV and MTVL are designed for manual and remote operations. This valve is designed to handle a wide range of liquids and gases within a broad temperature range. The MTV valve can be supplied in wafer as well in lugged design (MTVL). The valves have an advanced triple eccentric design including a unique shape of the disc allows the use of a solid stainless steel seat. The solid seat remains un-affected by high flow velocities and temperatures. A good valve function is achieved even on difficult applications. The SOMAS valves are delivered ready for installation and operation. The manual valves are delivered with lever or gear unit and the remote operated valves can be delivered with hydraulic or pneumatic actuator on request.

Tightness class Max. allowable pressure drops/torque figures The tightness class is related to the chosen material in the seat ring. Maximum allowable pressure drops are valid at 20° C. Metal seat Use a shaft in accordance with code A for temperatures up to 150° C. Use a shaft in accordance with code B for acids and hot gases above 150° C. Torque (shaft) PTFE seat Code A EN 60534-4 VI (ASME B16-104 Class VI) (Option) Pressure and temperature rating Max. pressure drop bar at opening angle Capacity factor Kv and Resistance factor ξ for butterfly valve type MTV/MTVL DN 80 100 125 150 200 250...

Lugged design Wafer design Drilled and threaded according to the ordered flange standard BL 86 129 137 158 1911 226 261 287 339 *PN 16/25 = 31kg A = Face to face dimension according to EN 558 series 20 BL = The B measure for butterfly valves, lugged type øde = Necessary free diameter for the disc under movement 1 BL for DN 200 PN 10 and PN 20 is 154 CC Butterfly valve with gear unit for on-deck application Butterfly valve type MTV with hand lever

Butterfly valve, type MTV/MTVL with actuator type Skarpenord NOTE! Required supply pressure 130 bar

Swedish standard Steel (SS 1650-06) Description Key Shaft Shaft3 Stud Nut Gland Valve body Stuffing box kit Screw Cover plate Support ring Gaskets, kit4 Spring washers, kit4 Seat Disc Shaft Shaft3 Gasket Cover Screw Bearings sleeve4 Gasket (DN80-300) Comparable material Included in the USA standard spare part kit Steel (ASTM 1045) X AISI 329 AISI 329 hard chromed AISI 316 AISI 316 A351 (CF8M) A351 (CF8M) Graphite alternative PTFE X AISI 316 AISI 316 AISI 316L X Graphite X UNS S31803 X UNS S31803 alternative PTFE X A351 (CF8M) AISI 329 AISI 329 hard chromed Graphite X A351 (CF8M) AISI 316...

Important installation information Note! The preferred flow direction is towards the flat side of the disc. When lugged valves are installed, downstream piping can be removed when the valves are in the closed position. The lugged valve can also be used for end-of-line service, in which case the fluid pressure must flow towards the flat side of the disc. • Protection plates should not be removed until the valve is subject to installation. should be standard • Counter flangesASME standard. according to European or be flat type (not spiral • Gaskets shouldcorrect quality. For dimensions...

Flange standard Actuators, gears and accessories SOMAS butterfly valve type MTV in this data sheet is of wafer type for mounting between flanges PN 10-25/Class 150. The valves can be fitted with SOMAS gears, levers or hydraulic actuators in accordance with the selection table. The valve can also be delivered in lugged design. The valve can be drilled for mounting between flanges according to ASME. The gear material and painting is customized for on-deck applications. The painting procedure is based upon a proposal from the Jotun Company and it is named BSK-99 Corrosion Class C5 M. The type...

Ordering State desired valve according to the valve specification system below as well as type of actuator, positioner and accessories. Valve specification system 4 Material – valve body Wafer design MTVL 2 Valve body design D = 1.4470 (metal seat, type Y) 2 = PTFE 10 Valve size, DN 11 Drilling, counter flanges F = Lugged design 7 Material – shaft Bearing – valve body/shaft 1 = Without bearing Lugged design Check with SOMAS for further combinations. SOMAS reserves the right to make improvements without prior notice.