Standard - WEKA AG

More documents

Recommendations

Info

WEKA AG, CH-8344 Bäretswil & CH-2300 La Chaux-de-Fonds, Switzerland Phone +41 43 833 4343 - Fax +41 43 833 4329- Schürlistrasse 8, CH-8344 Bäretswil Phone +41 32 925 97 00 - Fax +41 32 926 54 22 - Allée du Quartz 1, CH-2300 La Chaux-de-Fonds WEKA Specification no. 19911004 – WEKA Cryogenic Valves info@weka-ag.ch - www.weka-ag.ch 19. September 2007 - FHo / Page 4 of 7 Valve Interface Connections Valve body pattern Cat. no. 911003 Pipe Connection Cat. no. 911003 Mounting Cryogenic length Standard Angle Butt weld ends Standard weld- in flange for coldbox mounting, according to catalogue no 910930 and 911031 Without weld-in flange according to catatalogue No. 911104 Depending on DN and service temperature, h=600, 875, 1000 and 1300mm Optional on request Globe pattern (D- or Z-shape) Y - pattern, 45° Flanges, tube fittings etc KF-flanges or any other flange according to customer’s request. Vacuum jacketed etc. all dimensions between min. h and up to max. of. ca. 2000mm 4.2 Materials Body Inset Standard Stainless steel code 316L i.e. DIN grades 1.4404, 1.4432 or 1.4435 (DIN17440, DIN17457 and DIN 17458 as well as new EN10272, EN10217 and EN10216) Stainless steel code 316L i.e. Insert tube filled with Perlite powder and tight welded Optional on request Stainless steel code 321 (DIN grades 1.4541 / 1.4571) or code 304L (DIN grades 1.4306/1.4307) Compound design with FWG Epoxy -glass fibre tube, vented and filled with PE-netting or ss netting. Vented stainless steel tube filled ss netting. Seat seals PTFE or PCTFE or HD-PE1000, PI, PEEK mod., Ni, Stellite 6 Flow plugs CuAl10 Fe Ni5 Stainless steel polished Bonnet, union nuts Upper spindle Brass up to DN65 Stainless steel grade A2 >=DN80 Stainless steel grade A2/A4 In stainless steel A2 Static O-ring joints NBR70; FPM75 Kalrez / Chemraz etc. Stem sealing: Bellows sealed: Packing sealed: Manual drive: Stainless steel grade 316L i.e. DIN grades 1.4404 and 1.4435 Security seal: = DN80 PTFE chevron packing NBR quad ring, guiding in PTFE Hand wheels and travel indication in Aluminium Yoke and legs in Stainless steel grade A2/A4 FPM o-rings other packing FPM quad ring, guiding in HD- PE100 L:\_Dokumentationen\Cryo_Datenblätter\_Originale\19911004-E-2002.doc
WEKA AG, CH-8344 Bäretswil & CH-2300 La Chaux-de-Fonds, Switzerland Phone +41 43 833 4343 - Fax +41 43 833 4329- Schürlistrasse 8, CH-8344 Bäretswil Phone +41 32 925 97 00 - Fax +41 32 926 54 22 - Allée du Quartz 1, CH-2300 La Chaux-de-Fonds WEKA Specification no. 19911004 – WEKA Cryogenic Valves info@weka-ag.ch - www.weka-ag.ch 19. September 2007 - FHo / Page 5 of 7 5. Valve Actuators: Manual Drives: − Integral or leg design, precision drive 1/100 backlash for control functions − Manual drives with fine travel indication for control or rough indication for shut-off only − Possibility to fit switches (electromechanical or inductive) to indicate valve (end) positions − For dimensions see catalogue-no. 921029 Pneumatic Actuators − Pneumatic diaphragm actuators for on/off (digital)- or control functions, max. air supply pressure depending on actuators type up to 6,0 barg respectively 4,2barg, min. air supply pressure depending on valve size, position in case of loss of air pressure or signal and service or shut-off pressure − Normally closed or normally open by spring thrust − Control valves with electropneumatic positioner, with ⇒ conventional analogues positioner, signal 4-20mA or with ⇒ intelligent digital positioner, signal 4-20mA with option modules for • alarms (incl. 2-off adjustable travel switches, 1-off configurable alarm outlet and 1-off binary inlet configurable for use for examples as 3/2-way solenoid valve or blocking valve) • analogues travel feedback as 4-20mA signal • HART protocol or with ⇒ intelligent digital positioner for fieldbus technology, system PROFIBUS PA, with all optional as described above or with ⇒ pneumatic positioner signal 0,2 - 1,0 barg, integral − Positioner will be side mounted as standard, integral conventional analogues electropneumatic and for pneumatic positioner are available on request. An optional compact mounting for the intelligent digital positioner will be available on request. − Auxiliaries like limit switches (micro, inductive- and capacitive proximity switches), 3/2 way solenoid valves and any other pneumatic air control equipment according to the valve function and customer’s request. Dimensions, specifications and materials on request Electrical Actuators − Electrical linear actuators for on/off (digital)- or control function. − Power supply 220/240V-50Hz or 110V-50Hz, 24V-DC etc. − Depending on valve function with thrust load depending limit switches, travel depending switches and travel feedback potentiometers or with integral electronically positioner signal 0/4-20mA or 0-10V and any other electrical control equipment will be available on request Other Actuators − Pneumatic piston actuators, hydraulic or fluid self-controlled actuators according to customer’s request. L:\_Dokumentationen\Cryo_Datenblätter\_Originale\19911004-E-2002.doc
Page 1 and 2: WEKA AG, CH-8344 Bäretswil & CH-23
Page 3: WEKA AG, CH-8344 Bäretswil & CH-23
Page 7: WEKA AG, CH-8344 Bäretswil & CH-23
Page 12 and 13: Nominal Valve Size DN: Nominal Pres
Page 14 and 15: Nominal Valve Size DN: Nominal Pres
Page 16: Nominal Valve Size DN: Nominal Pres

Standard - WEKA AG

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?