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Products, Catalog 2016 - 162 Pages

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Catalogue excerpts

SAMSON AKTIENGESELLSCHAFT Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 E-mail: samson@samson.de · Internet: www.samson.de SMART IN FLOW CONTROL. SMART IN FLOW CONTR

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Overview Technical Basics Control Valves Valve Accessories Electronic Process Controllers Devices for Cryogenic Applications Electronic Digital Controllers and Sensors Self-operated Temperature Regulators Self-operated Pressure Regulators Self-operated Flow and Differential Pressure Regulators Pilot-operated Universal Regulators Pressure-independent Control Valves Pipeline Fittings

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Contents Control Valves for HVAC Systems/Industrial Applications Technical Basics SAMSON control valves Valve accessories Self-operated regulators Control valves with pneumatic or electric actuator Type 3321 Globe Valve Type 3323 Three-way Valve Control valves with pneumatic or electric actuator Type 3531 Globe Valve for Heat Transfer Oil Type 3535 Three-way Valve for Heat Transfer Oil Electric and pneumatic control valves Types 3213, 3214, 3222, 3222 N, and 3260 Globe Valves Type 3260 and Type 3226 Three-way Valve 63 Control Valves Type 3241 Globe Valve Type 3510 Micro-flow Valve Type 3252 High-pressure...

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Valve sizing Valve Accessories Types 4746, 4747, and 4744 Limit Switches 81 Types 3776, 3738-20, 3738-50, and 3768 Limit Switches Type 4708 Supply Pressure Regulator 82 Type 3965 Sol enoid Valve Island 84 Type 3709 Pneumatic Lock-Up Valve 85 Type 3710 Reversing Amplifier Type 3755 Pneumatic Volume Booster 86 Type 3711 Quick Exhaust Valve 87 Types 6111, 6116, and Type 6126 i/p Converters 88 Type 6132 and Type 6134 p/i Converters 89 Media Series Differential pressure, flow and liquid level meters Indicating digital transmitters for differential pressure Differential pressure and flow meter Orifice...

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Self-operated Pressure Regulators Type 2405 Pressure Reducing Valve Type 2406 Excess Pressure Valve Type 41-23 Pressure Reducing Valve Type 41-73 Excess Pressure Valve Type 44-0 B and Type 44-1 B Pressure Reducing Valves Type 44-6 B Excess Pressure Valve 124 Type 2333 Pressure Reducing Valve with pilot valve Type 2335 Excess Pressure Valve with pilot valve 126 Type 44-2 Pressure Reducing Valve Type 44-3 and Type 44-9 Safety Shut-off Valves (SSV) Type 44-7 Excess Pressure Valve Type 44-8 and Type 44-4 Safety Excess Pressure Valves Series 2371 Pressure Regulators for the food and pharmaceutical...

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1 SAMSON control valves Series 240, 250, 280, and 290 Control Valves include pneumatic and electric globe valves, three-way valves, and angle valves. Their application range covers control tasks in process engineering and industrial applications as well as in supply and power plant engineering. The modular system allows easy retrofitting and servicing. The control valves consist of the valve and actuator. They can be equipped either with pneumatic, electric, electrohydraulic or hand-operated actuators. For controlling purposes and travel indication, accessories, such as positioners, limit switches,...

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1.1 Valves 1.1.1 Valve body styles The valve body, valve bonnet and, in some cases, the bottom flange are subject to internal stress caused by the process medium flowing through the valve. Consequently, the valves must be designed to be sufficiently resistant to mechanical and chemical stress. Under the influence of the operating temperature, the material strength changes. This behavior can be improved by combining certain alloys. For this reason, heat-resisting materials are used at high temperatures (e.g. according to DIN EN 10213) and cold-resisting materials are used for cryogenic service....

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Cryogenic valve On/off valve Plants that produce liquefied, cryogenic air separation gases, often use vacuum-insulated pipelines to prevent environmental heat being transferred to the medium. The valves can be integrated into the vacuum jacket using a connecting flange. The valve is designed to widely prevent thermal conduction to the effect that the stem remains free of ice. A bellows seal serves as the primary sealing. The jacketed pipeline is evacuated of air and sealed off after installation of the components. The cryogenic extension bonnet of the valve is often welded to the jacketed pipeline...

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Steam-converting valve Steam-converting valves are used to reduce the steam pressure and the steam temperature simultaneously. A connecting pipe supplies the cooling water to the flow divider St III. At its inner wall, the cooling water comes into contact with the steam flow. The steam flow and the entrained water are mixed in the narrow wire mesh of the flow divider. As the supplied cooling water does not come into contact with the valve body, neither erosion nor thermal shock occur. The flow divider ensures low-noise and low-vibration operation. The temperature range of the standard packing...

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Perforated plug Spring-loaded V-ring packing made of pure PTFE. Suitable for pure process media where the carbon particles would contaminate the process medium. An optimized trim with perforated plug is available for Series 240 and 250 Valves. Perforated plugs are mainly used in severe service, e.g. in steam applications, two-phase medium flows, liquid media which vaporize on the outlet side (flashing valves) or emergency relief valves (blow-off valves) involving gas relief. In these applications, flow velocities lower than 0.3 Mach cannot usually be kept. The medium flows through the perforated...

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Pressure balancing If the actuator thrust is not sufficient to handle the differential pressure, pressure-balanced plugs are a good solution. The plug is designed to function as a piston. The upstream pressure p1 is transferred to the back of the plug through a hole in the bottom of the plug. The forces acting on the plug are compensated for, with exception of the area around the plug stem. Pressure-balanced plugs are additionally sealed with a PTFE ring or a graphite ring. The pressure-balanced components are subject to wear. As a result, the seat leakage rate (see table on page 13) and the amount...

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