Swagelok ® Bellows-Sealed Valves

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Bellows-Sealed Valves, B Series

Swagelok® B series bellows-sealed valves are available in a range of configurations to meet a variety of system needs. Gasketed and weld body-to-bellows seals, shutoff and regulating stem tips, and several end connections are offered.

Download Add To Favorites Bellows-Sealed Metering Valves, BM Series

Features: Micrometer handle for precise, repeatable flow settings; Working pressures up to 700 psig (48.2 bar); Temperatures up to 900°F (482°C); 316 stainless steel construction

Download Add To Favorites Bellows-Sealed Valve for Switching Service, BY Series

Features: Compact, packless valve switches flow from one line to another. Torlon® stem guide ensures proper alignment for consistent shutoff performance. Manual and spring-return and double-acting pneumatic actuators are available. End connections include 1/4 in. Swagelok® VCR® metal gasket face seal fittings and 1/4 in. Swagelok tube fittings.

Download Add To Favorites High-Pressure, Pneumatically Actuated Bellows-Sealed Valves, HB Series

Packless valves with all-metal seal to atmosphere; Working pressures up to psig (241 bar); Temperatures up to 400°F (204°C); VCR® face seal fitting, Swagelok® tube fitting, and weld end connections

Download Add To Favorites Bellows Sealed Valves U Series

Features: Secondary containment system above the bellows; Working pressures up to psig (172 bar); Temperatures up to °F (648°C); 1/4, 3/8, 1/2, 3/4, and 1 in.; 6, 10, and 12 mm end connections; Stainless steel material

If you are looking for more details, kindly visit DIN Bellow Seal Globe Valve.

Download Add To Favorites Bellows-Sealed Valves, BN Series

Features: Packless valves with all-metal seal to atmosphere; Working pressures up to 500 psig (34.4 bar); Temperatures up to 200°F (93°); 1/4 to 1/2 in. and 6 to 12 mm end connections

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To analyze the cost benefits of installing a bellow seal globe valve in a steam system Mr Salins has worked out a comparison with a piston valve and also a conventional globe valve, based around valves with a 15mm diameter and steam at 150 psi.

His analysis is a development of work done by Witzenmann GmbH.

&#;Three types of cost need to be considered: the capital cost, the maintenance cost and the cost caused by the downtime and loss of energy/media,&#; indicates Mr Salins.

&#;Of course, the figures may need to be adjusted from user to user and country to country based on the prevailing cost of the valve, the cost of steam generation, etc.&#;

When it comes to a straight comparison of the capital costs (figure 1) then the bellow seal valves is the least favorable, costing two to three times as much as the alternatives.

For more information, please visit ANSI Bellows Seal Globe Valve.