High Pressure Tube Unions DILO. Sustainably tight. Made in Germany
I am totally convinced by the high safety level even under extreme pressure. Christian Komm, Siemens AG, Power Generation DILO High pressure tube unions Maintaining pressure tightness even under extreme conditions Do you have to handle high pressures, extreme temperatures, aggressive media or hot vapours with high process reliability? Here are DILO s high pressure tube unions! Our high pressure tube unions remain hermetically sealed even under critical operating conditions. The secret lies in the high quality metal-to-metal sealing principle developed by DILO. The high pressure tube unions are sealed without any intermediate seal compound. The seal is obtained by direct contact of the tongue and groove sealing surface. Our sealing principle allows permanent pressure tightness up to 1,000 bar and withstands temperatures from -270 C up to +500 C (dependent on the material used). In case your pipework systems require frequent maintenance it is a double win situation since DILO high pressure tube unions are completely maintenance free and can be loosened and re-connected as often as required. So valuable time is saved and your service costs are significantly reduced. Our staff will be pleased to advise you on the selection of the most suitable material for your applications. We also offer support when planning and developing complex pipework systems such as plant piping. Well known customers in the power plant and turbine sector, in the chemical and petrochemical industry, in pipework systems and apparatus construction as well as in many other sectors have been relying on DILO quality Made in Germany for many years. 2
Comprehensive range of products DILO s success story began in 1951 when the metal to metal seal high pressure tube unions were launched. Today s product range includes weld-on tube unions and blocking valves, non-return valves and high pressure hoses: all that is required for high pressure tube unions, guaranteeing maximum tightness. With nominal diameters from DN3 to DN50 and pressures ranges up to 1,000 bar our product range meets all requirements. Different materials are available so that high process reliability is always maintained whatever the media. Standard series are available from stock and can be delivered immediately. Quality Made in Germany Tube unions are safety relevant components for operating plant and equipment. Thus strict quality controls and comprehensive quality management in accordance with ISO 9001:2008 guarantee consistently high product quality without any compromises. Upon request, we issue certificates of conformity in accordance with EN 10204 (3.1). 3
DILO High Pressure Tube Unions DILO sealing principle Hermetically sealed and long term tightness Tightness is achieved without any intermediate seal compound by direct contact of the tongue and groove seal faces. Two ring-shaped sealing areas with high stability are produced by the different radii of curvature of the tongue and groove. The braking surface on the DILO tongue part prevents the seal area from being deformed. The result: high and long term tightness. Product features: Long term tightness with a leak rate of about < 1 cm³ in 3 years Suitable for pressures up to 1,000 bar and vacuum Temperature resistant from -270 C up to +500 C (dependent on the material used) Applicable for all fluids with the correct steel grade Long term high level of gas tightness even when tube unions are frequently loosened and re-connected Short separation distance required to open a coupling which allows simple assembly and disassembly Resistant to vibrations without any additional protection Complete interchangeability of pieces of the same type Approvals and certifications provided by DILO: Certification in accordance with ISO 9001:2008 Confirmation of quality assurance in accordance with KTA 1401 HP0 approval as manufacturer of pressure equipment Production supervision in accordance with 2014/68/EU pressure equipment directive 4
Weld-on tube unions For permanent pipe connections With weld end on both sides For tube diameters from DN 3 to DN 50 Straight version, angles and Tee form Temperature resistant from -270 C up to +500 C (dependent on the material used) Versions for pressures up to 1,000 bar on request Screw in tube unions For variable application With weld end and screw in thread For tube diameters from DN 3 to DN 50 Straight version, angles and Tee form Metric, Whitworth or NPT thread Temperature resistant from -270 C up to +500 C (dependent on the material used) Versions for pressures up to 1,000 bar on request Throttlefree angle-swivel unions For variable positioning of the weld end With infinitely variable weld end For tube diameters from DN 3 to DN 40 Angles, L or Tee form Metric, Whitworth or NPT thread Temperature resistant from -270 C up to +500 C (dependent on the material used) 5
DILO High Pressure Tube Unions Gauge connecting screw in unions For safe connection of gauges Applicable in pressure ranges to nominal pressures PN100, 200 and 320 bar Suitable for G ½ gauge threads and all standard series Available for pipes from DN 3 to DN 10 Other thread sizes are available on request Blanking disks For isolating pipes To fit between tongue and groove parts For all series and pressure ranges Available bored out for flow restriction Available in different materials which allow use from -270 C up to +500 C Manual blocking valves For medium flow regulation Robust durable version Complete DILO connecting parts are available Temperature range of non-return valves -20 C to +70 C (media-dependent) Application range of manual blocking valves from -270 C up to +400 C Available in DIN EN materials 1.0460 and 1.4571 6
Superheated steam unions For applications up to 500 C Available as weld on or screw in version Suitable for pressures up to PN100 With metric or Whitworth thread Suitable for pipe diameters from DN 3 to DN 40 High temperature-resistant 1.7335 steel Special materials for higher temperatures are available High pressure hoses For liquids and pressures up to PN 320 Applicable for high pressure and vacuum use Suitable for temperature range from -40 C to +100 C Consisting of internal and external oil and water-proof layer Rubber hose reinforced with wire braid Available in any hose length Special tube unions For customer-specific applications Components are available in different materials Chamfered fittings to adapt to different pipe and weld on stub wall thickness Double stubs for other connecting options are available 7
You can download our complete catalogue with the comprehensive programme for high pressure tube unions on our website www.dilo-gmbh.com. SF 6 gas handling DILO is specialized in SF 6 gas handling with a 50 years experience. For more detailed information on our product range please see our website www.dilo-gmbh.com. Subject to change without notice. Copyright DILO HD_GB_05 DILO Armaturen und Anlagen GmbH Frundsbergstrasse 36 D-87727 Babenhausen Phone: +49 (0) 83 33-302-0 Fax: +49 (0) 83 33-302-52 E-Mail: info@dilo-gmbh.com www.dilo-gmbh.com