VACOMASS Technical information Diaphragm control valve with central or falling flow axis Version 2012-02
DESCRIPTION OF CONSTRUCTION AND FUNCTION SPECIAL CHARACTERISTICS: Universal use: The slidegate valve can be used for liquids as well as gases. The valve closes depending on the construction and application gas tight. Unit construction system: All construction parts are exchangeable. With simple means only the actuation type can be changed. Repair: In case of wear the recovery of individual parts is ensured with large expenditure. Choice of materials: Depending upon case of application material of housing as well as sliding plate and gaskets can adapted to the operation conditions. CONTROL VALVE TIGHTNESS SYSTEM: The slidegate valve consists of two equal housing parts. Their geometry is selected in a way that a use as intermediate flange or end armature is given. In the patch there is a groove for the admission of the gasket. The gasket keeps the slidegate in the housing gas tight and takes over by the prism geometry the guidance of the sliding plate at the same time. That means: a flutter-free guidance is ensured and blocking is impossible. The prism guidance between plate and seal offers on the one hand an optimum of sealing surface, on the other hand an operation at alternative loading (at positive pressure or vacuum) becomes possible. The geometry of the prescribed seal was selected for easy purchase (a material which can be delivered as meter goods), of most different quality with all nominal sizes and for pressure ranges up to PN 40. The transverse seal, which realizes the tightness of the valve on the place of the slidegate plate, is a double lip seal type. It is inserted under pre-load when the final assembly of the slidegate valve is done. The structure, which carries the actuators, is a simple handle from flat material, which is fixed to the housing by means of screws. Onto this handle the drive is installed. The sliding plate is manufactured in normal cases from stainless steel. It is purify-polished in principle, in order to guarantee a minimum of friction in the soft seal. Materials: Depending upon conditions of service the housing material is selected, standard materials are GG25 and/or S355 (St 52). In special cases can be used also Monel, Hastelloy, titanium or polypropylene etc. The plate material is a stainless high-grade steel of the quality 1.4301 (304 L) or 1.4571 (316 TI). The material for the seals can be different too, so e.g. nitrile rubber, Viton compound, Neoprene, Silikon, Vistalon (APTK), Hypalon (polyethylene), Kalrez, teflon (ptfe 15%-glasfibre reinforced), ceramic(s) fiber etc. Further designs: The slidegate valves can be supplied in two different versions: so-called light (intermediate flange) and heavy (with two flanges on both ends). The size/total length of armature is under normal conditions according to DIN PN 10. The operating pressures are gradated depending upon nominal size. The design is done on a project base, following information are required: Nominal size/nominal pressure of the pick-up flange Installation between two flanges or as final slidegate valves Operating pressure/operating temperature of the medium/ambient temperature at the place of work Kind of the medium/special characteristics of the medium Actuation type BIDE-M-D-VACOMASS control valve-en-r00.doc www.bindergroup.info 2
OVERVIEW CONTROL VALVES Adjustable control valve with a wide stable control area, where the ratio flow change is directly proportional to the stroke. If design and sizing is done well, the pressure drop of the control valve will be lowest. SLIDE GATE FOR INSTALLATION BETWEEN TWO FLANGES WITH IN-CASTED PLATE BIDE-M-D-VACOMASS control valve-en-r00.doc www.bindergroup.info 3
Depends on the type of actuator CONTROL VALVE WITH CENTRAL FLOW AXIS Use between two flanges, flange drillings: DN PN10 DN Ca. L H K B Ø Ca. A No. of flange drillings GSL No. of thread blind holes GSL Thread Depth on both sides mm 40 290 110 33 145 4 8 50 315 125 43 170 4 8 65 330 145 46 185 4 8 80 350 160 46 205 8 16 M16 16 100 370 180 52 225 8 16 M16 16 125 415 210 56 270 8 16 M16 20 150 460 240 56 315 8 16 M20 20 200 520 295 60 375 8 16 M20 20 250 635 350 68 475 12 24 M20 20 300 715 400 78 555 12 24 M20 20 350 795 460 78 635 16 32 M20 28 400 880 170 515 102 720 16 32 M24 32 450 1.015 170 565 114 855 20 40 M24 35 500 1.105 170 620 127 890 20 40 M24 47 600 1.260 200 725 154 1.045 20 40 M27 59 BIDE-M-D-VACOMASS control valve-en-r00.doc www.bindergroup.info 4
Depends on the type of actuator CONTROL VALVE WITH FALLING FLOW AXIS Use between two flanges, flange drillings: DN PN10 DN Ca. L H K B Ø Ca. A No. of flange drillings GSL No. of thread blind holes GSL Thread Depth on both sides mm DL No. of through holes DL Drilling 40 310 110 33 80 4 8 M16 50 340 125 43 90 4 8 M16 65 360 145 46 105 4 8 M16 80 390 160 46 120 8 8 M16 16 4 18 100 421 180 52 140 8 8 M16 16 4 18 125 475 210 56 162 8 8 M16 20 4 18 150 535 170 240 56 190 8 8 M20 20 4 23 200 621 170 295 60 240 8 8 M20 20 4 23 250 760 170 350 68 290 12 16 M20 20 4 23 300 865 200 400 78 350 12 16 M20 20 4 23 350 970 250 460 78 400 16 24 M20 28 4 23 400 1.080 300 515 102 450 16 24 M24 32 4 27 450 1.240 350 565 114 500 20 24 M24 35 4 27 500 1.355 400 620 127 550 20 24 M24 47 4 27 600 1.560 500 725 154 650 20 32 M27 59 4 30 BIDE-M-D-VACOMASS control valve-en-r00.doc www.bindergroup.info 5
SLIDING GATE CONTROL VALVE WITH DIFFERENT PASSAGE The free diameter/area of the control valve (e.g. DN200) can be chosen according to the application (Ø 198 214 mm). The plate geometry is selectable depending upon control function. Examples: Complete circle Passage Emergency case 100% 80% 40% 5% 0% (Option only) Control operation, Type with central flow axis Complete circle Passage Emergency case 100% 80% 40% 5% 0% (Option only) Control operation, Type with central flow axis Passage 100% 80% 40% 5% 0% Control operation, Type with falling flow axis BIDE-M-D-VACOMASS control valve-en-r00.doc www.bindergroup.info 6
OVERVIEW MATERIALS We deliver following materials: Valve housing: Grey cast iron: Cast steel: GS 20 Steel: S 355 (St 52) GG-25 (Standard), alternatively GG-50, GG-40.3 Aluminum: GAL (not suited for the use in Ex-areas) Stainless steel: V2A 1.4308, V4A 1.4408, V4A 1.4539, V4A 1.4462 Plastics: PP polypropylene Valve plate: Stainless steel: V2A 1.4301 (standard), alternatively V4A 1.4571, V4A 1.4539, V4A 1.4462 Spindle: Stainless steel: Chrome- 1.4104 (standard), alternatively V2A 1.4301, V4A 1.4571 V4A 1.4539, V4A 1.4462 Handle: Steel: S 235 JR (St 37-2) (standard) Stainless steel: V2A 1.4301, V4A 1.4571 CORROSION PROTECTION All steel, casted and aluminum parts are standardized coated with a EKB heat coating in RAL 5010 with 150µm coats. All armatures which are installed in the earth shall be coated with a priming Friazink R and a lacquer finish with Intertol Poxitar (black). If a special final colour is necessary, this can be realized by a coating with iron mica color (EEC 1 <grey> and EEC 5 <special RAL colour>). Special equipment of coatings Applicable coatings and treatments of slidegate valve housings and plates: - chemical nickel plates - hard and gloss-chromium plating - harden, hard-inchromed - plastic-coated PTFE (teflon), Säkan etc. - rubber-coated BIDE-M-D-VACOMASS control valve-en-r00.doc www.bindergroup.info 7
TECHNICAL INFORMATION SEALS/GASKETS We recommend the use of following seals and gaskets depending upon case of application and as a function of temperature and kind of gas: Medium: Gas/Air Slide gate: Seals/gaskets: Standard version BUNA EPDM Viton PTFE IMPRESSUM BINDER GmbH Buchbrunnenweg 18 89081 Ulm, Germany Tel. +49 731 18998-0 Fax +49 731 18998-88 info@bindergroup.info www.bindergroup.info BIDE-M-D-VACOMASS-EN-R03 Datenblatt VACOMASS control valve BIDE-M-D-VACOMASS control valve-en-r00.doc www.bindergroup.info 8