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Summary of Contents for Pfeiffer Vacuum UDV 146
- Page 1 A P A S S I O N F O R P E R F E C T I O N UDV 146 All-Metal Control Valve, thermomechanically and manually actuated Operating Instructions...
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Page 2: Product Identification
We reserve the right to make technical change without prior notice. All dimensions in mm. Intended Use The UDV 146 All-Metal Control Valve is used (in conjunction with a controller) for admitting a precise and reproducible gas flow into a vacuum system and is suited, for example, for •... -
Page 3: Table Of Contents
Contents Product Identification Validity Intended Use 1 Safety 1.1 Symbols Used 1.2 Personnel Qualifications 1.3 General Safety Instructions 1.4 Liability and Warranty 2 Technical Data 3 Installation 3.1 Capillary for Precisely Routing the Gas Flow 3.2 Installation in the Vacuum System 3.3 Electrical Connection 4 Operation 4.1 Manual Gas Flow Setting... -
Page 4: Safety
Communicate the safety instructions to all other users. 1.4 Liability and Warranty Pfeiffer Vacuum assumes no liability and the warranty becomes null and void if the end-user or third parties • disregard the information in this document •... -
Page 5: Technical Data
2 Technical Data Actuation manual thermomechanical Connections Vacuum side DN 40 CF-F M5 (capillary) Inlet side DN 16 CF-R Mounting orientation Tightness of closed valve <10 mbar l/s Pressure range <10 mbar … 30 bar (absolute) Operating pressure (vacuum side) <10 mbar …... -
Page 6: Installation
Always wear clean, lint-free gloves and use clean tools when working in this area. Overview Accessory Supplied by end-user Shut-off valve RVG 050 C Controller Accessory Flange with tube DN 16 CF-F Heating jacket (accessory) Accessory Supplied by end-user BP 5281 BEN (2010-10) UDV 146... -
Page 7: Capillary For Precisely Routing The Gas Flow
3.1 Capillary for Precisely Routing the Gas Flow Do not turn the knurled nut. ø2×0.5 3.2 Installation in the • Remove the protective lids and install the valve to the vacuum system. Vacuum System • Ensure good accessibility of the knurled nut. Gasket (accessory) Screws, M4×20 (accessories) -
Page 8: Electrical Connection
0.50 .7 A valve current 20 V limit reset time proportional gain set point 30 s 1000 fuse power Shut-off valve (supplied by end-user) RVG 050 C Controller → BG 5282 BEN. Further technical data → BP 5281 BEN (2010-10) UDV 146... -
Page 9: Operation
4 Operation DANGER DANGER: hot surface °C Touching the hot surface can cause burns. Wear protective gloves. 200 °C °C °C 55 °C 4.1 Manual Gas Flow Open the valve by making 3 counter clockwise turns of the knurled nut. Setting Locked 3 turns... -
Page 10: Thermomechanical Regulation
4.2 Thermomechanical The UDV 146 has a thermomechanical controller. The valve stem is equipped with a bifilar heating coil and is heated according to the heater voltage applied. The Regulation resulting deformation in extension is added to the set basic adjustment of the valve (→... -
Page 11: Operation At Low Gas Flows
4.3 Operation at Low Gas When operating the valve at gas flows ≤10 mbar l/s, the orifice can be contami- nated by condensable vapors. Adsorbed vapors can be removed by baking the Flows valve in open position (at approx. 200 °C for 30 minutes). Such adsorption can be prevented by heating the valve during operation, for example with a heating jacket (→... -
Page 12: Deinstallation
Caution Caution: dirt sensitive area Touching the product or parts thereof with bare hands increases the desorption rate. Always wear clean, lint-free gloves and use clean tools when working in this area. BP 5281 BEN (2010-10) UDV 146... - Page 13 Detach the flanges and put the protective lids in place. Gasket Protective lid Protective lid Gasket Use new gaskets when reinstalling the valve (→ 34). BP 5281 BEN (2010-10) UDV146.oi...
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Page 14: Maintenance
6.1 Disassembling the Valve Valve deinstalled (→ 12). Mechanism Turn the ball pin 4 turns counter clockwise in order to relieve the lever. Size 4 4 turns BP 5281 BEN (2010-10) UDV 146... - Page 15 Remove the screws and lift off the cap. Size 4 Screw the screws one turn into the link bolts. Remove the cap screw. AF 6 Remove the link bolts by pulling the screws. BP 5281 BEN (2010-10) UDV146.oi...
- Page 16 Lift the lever off and carefully remove the bolt. Pull out carefully Remove the hexagon nut and the cup springs. BP 5281 BEN (2010-10) UDV 146...
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Page 17: Cleaning The Valve Mechanism
6.2 Cleaning the Valve DANGER Mechanism DANGER: cleaning agents Cleaning agents can be detrimental to health and environment. Adhere to the relevant regulations and take the necessary precautions when handling and disposing of cleaning agents. Consider possible reactions with the product materials (→ Clean the valve mechanism with a lint-free cloth moistened with alcohol. -
Page 18: Adjusting The Prestress Of The Cup Springs
6.5 Assembling the Valve We recommend using the high temperature lubricant Hi-Temp C100 Mechanism (→ 33). A thin coat of lubricant is sufficient. Insert the bolt and carefully connect the heating coil. Plug in carefully BP 5281 BEN (2010-10) UDV 146... - Page 19 Insert the lever into the housing and fasten it with the link bolts. Carefully turn in the cap screw until the mechanical stop can be felt. AF 6 Screw in carefully until the mechanical stop can be felt. Mount the cap and fasten it with the screws. Size 4 BP 5281 BEN (2010-10)
- Page 20 Lubricate the ball pin. • Connect the valve to a leak detector • Close the valve. Locked Close Set the desired gas flow (→ Set the desired gas flow BP 5281 BEN (2010-10) UDV 146...
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Page 21: Troubleshooting
We recommend returning the product to your local Pfeiffer Vacuum service center for repair. Pfeiffer Vacuum assumes no liability and the warranty becomes null and void if any repair work is carried out by the end-user or third parties. DANGER DANGER: contaminated parts Contaminated parts can be detrimental to health and environment. -
Page 22: Adjusting The Tightness At The Valve Seat
Knurled nut Lock nut Unfasten the lock nut and turn it 5 turns counter clockwise. Hold stationary 5 turns Lock the knurled nut. Turn to mechanical stop Hold stationary Adjust to the required tightness. Locked BP 5281 BEN (2010-10) UDV 146... - Page 23 Turn the knurled nut 2 turns clockwise in order to prestress the valve lever. Locked 2 turns Unlock the knurled nut. Hold stationary Unfasten Turn the knurled nut to the mechanical stop. Released Turn to mechanical stop Lock the knurled nut. Hold stationary Turn to mechanical stop...
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Page 24: Adjusting The Lever
Turn the knurled nut counter clockwise until α = 0° (a = 59 mm). Locked Turn until α = 0° (a = 59 mm). Hold the lock nut stationary and turn the knurled nut clockwise to the mechanical stop. Turn to mechanical stop Hold stationary BP 5281 BEN (2010-10) UDV 146... - Page 25 Unfasten the hexagon socket set screw and adjust the scale ring to "0". AF 2 Adjust scale ring to "0" Afterwards tighten the hexagon socket set screw. Lock the knurled nut. Hold stationary Turn to mechanical stop Connect the valve to a leak detector. Leak detector Turn the knurled nut 2 turns counter clockwise.
- Page 26 Carefully screw in the cap screw until a mechanical stop can be felt. AF 6 Check that the valve is tight. Valve tight? Max. 5 Nm Valve still not → tight Leak detector Turn the knurled nut 2 turns clockwise. Locked 2 turns BP 5281 BEN (2010-10) UDV 146...
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Page 27: Disassembling The Sealing Elements Of The Valve Seat
7.5 Disassembling the Caution Sealing Elements of the Valve Seat Caution: dirt sensitive area Touching the product or parts thereof with bare hands increases the desorption rate. Always wear clean, lint-free gloves and use clean tools when working in this area. Valve deinstalled (→... - Page 28 Remove the valve seat. Approx. 40 Nm AF 8 Remove the valve plate. Special tool BP 5281 BEN (2010-10) UDV 146...
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Page 29: Checking And Cleaning The Valve Body And The Sealing Elements Of The Valve Seat
7.6 Checking and Cleaning DANGER the Valve Body and the Sealing Elements of the DANGER: cleaning agents Valve Seat Cleaning agents can be detrimental to health and environment. Adhere to the relevant regulations and take the necessary precautions when handling and disposing of cleaning agents. Consider possible reactions with the product materials (→... - Page 30 • Oxidized parts? yes: polish concentrically with a polishing cloth (grain size ≤400) Clean the valve seat with a lint-free cloth moistened with alcohol. Copper gasket Metal washer Sealing surface BP 5281 BEN (2010-10) UDV 146...
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Page 31: Assembling The Sealing Elements Of The Valve Seat
7.7 Assembling the Sealing Caution Elements of the Valve Seat Caution: lubricants Lubricants can contaminate the vacuum area. Do not use any lubricants (the threads need not be lubricated). Caution Caution: dirt sensitive area Touching the product or parts thereof with bare hands increases the desorption rate. - Page 32 Screw in the valve seat. AF 8 Approx. 40 Nm Check that the valve is tight. If it is not, repeat section 7.4 to 7.7. Sealing surface Leak detector Rubber plug BP 5281 BEN (2010-10) UDV 146...
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Page 33: Accessories
8 Accessories Accessory Supplied by end-user Shut-off valve RVG 050 C Controller Cable for controller (accessory) Accessory Flange with tube DN 16 CF-F Heating jacket (accessory) Accessory Supplied by end-user High temperature lubricant Hi-Temp C100 Tool kit (accessory) (accessory) Description Ordering number Flange with tube, inlet side, DN 16 CF-F PF 517 202-X... -
Page 34: Spare Parts
Ordering number Valve plate, sapphire BP 414 656 -X Ordering number Valve seat complete, standard BP 414 652 –X Valve seat complete, gold plated BP 414 950 BP 5281 BEN (2010-10) UDV 146... -
Page 35: Returning The Product
Contaminated products (e.g. radioactive, toxic, caustic or biological hazard) can be detrimental to health and environment. Products returned to Pfeiffer Vacuum should preferably be free of harmful substances. Adhere to the forwarding regulations of all in- volved countries and forwarding companies and enclose a duly com- pleted declaration of contamination Form under www.pfeiffer-vacuum.net... - Page 36 Notes BP 5281 BEN (2010-10) UDV 146...
- Page 37 Notes BP 5281 BEN (2010-10) UDV146.oi...
- Page 38 A P A S S I O N F O R P E R F E C T I O N Pfeiffer Vacuum stands for innovative and custom Leading. Dependable. vacuum solutions worldwide. For German engineering art, Customer Friendly. competent advice and reliable services.
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