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Varian SD 40 Instruction Manual
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Varian SD 40 Instruction Manual

Rotary vane pump
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Summary of Contents for Varian SD 40

  • Page 2 30 days of notification will result in the return of held product(s) unprocessed. If a product is received at Varian in a contaminated condition, the customer will be held responsible for all costs incurred to ensure the safe handling of the product.

  • Page 3: Table Of Contents

    Tobie of contents ... 3 Warranty .... 7 Features ..... 8 Safety instructions ... . l 1 Operating principle ....16 Technical characteristics ..

  • Page 4: Warranty

    Customer to have the product cleaned by an independent agency skilled and approved in handling and cleaning contaminated materials before the product will be accepted by Varian Associates for repair and/or replacement.
  • Page 5 Welcome SD 40 pump When yow purchase o Varian vane pump, you purchase the k'lowledge of people who V:�RL�N. ore rhe sc :ne people who provide you v/th technical support on your r1ost complex and demarding applications. We suggest that you APPLICATIONS: �...
  • Page 6 1.4 CFM SD 40 The series 40 pump model is specially designed for integration into portable or compact systems (spectrometers, analyzers, leak detectors ... ). It presents the following main characteristics: direct drive motor, making it very compact.

  • Page 7: Safety Instructions

    Otherwise, take the necessary measures with the transporting compa­ ny and, if necessary, notify VARIAN. For all handling, only use the devices provided For this purpose (lifting rings, handle, etc.).
  • Page 8 Installation and • The machines must be connected to on electrical installation in compliance with decree 88-1056 doted 14th November 1988, as well as any local start-up electrical codes that apply. • It is important to isolate the machine from the power source before any -inter­ vention on the equi ment {for maintenance purposes}.
  • Page 9 Oxy g en pumpin g In certain applications, mixtures containing oxygen at different concentrations, or even pure oxygen, are used. Oils of mineral origin are combustible. Exposure to pure oxygen at high temperatures may cause them to self-ignite. In addition, they are highly oxidized during pumping and quickly lose their lubricating properties.
  • Page 10 - Accessories used. - Desired maintenance intervals and total operating cost. 18). VARIAN has selected two types of oil for its pumps (see page Lubrication and anti-noise The pump is equipped with a lubrication system which regulates the oil flow rote device required in the vacuum pump.

  • Page 11: Operating Principle

    Operating principle of the rotary vane pump Rotary vane pump principle This is a volumetric pump, with lwo functional stages, each composed of: A hollow cylindrical stator with inlet and exhaust valves. • A rotor mounted eccentrically inside the stator for pumping. ·...
  • Page 12 Note : when operating a two stage vane pump continously, greater than half an hour, above 1.0 Torr (1.3 rnbar), the unit should be equipped with an oil mist eliminator. Please, contact Varian if your application operates for more than half an hour above 1.0 Torr (1.3 mbar).
  • Page 13 Regeneration of In a pump stored with the same oil for a long time, condensed vapours may pump oil contaminate the oil bath and affect performance. This is also the case ofter pum­ ping vapours and when the oil appears cloudy or discolored through the sight glass.
  • Page 14 Assembly The condensation of vapours at the pump exhaust is reduced if: the pump and oil temperature are high; - the pressure at the exhaust is as low as possible {removal of the oil mist eliminator ... ); Exh. · the condensates are collected separately from the oil bath and do not block the exhaust duct.
  • Page 15 Presentation of the product range wide range Varian oil seal rotary vane pumps are used in many vacuum technology Specific solutions adopted to various applications. applications They con be used on their own lo a:::hieve a maximum vacuum of 1 Q-3 Torr (1 Q-3 mbar), or in pumping assemblies, e.g.

  • Page 16: Technical Characteristics

    Technical characteristics SD Model Characteristics * These values are for pumps equipped with single-phase motors. Note: The pressure measurements were mode with a capacitive diaphragm pressure gauge measuring a total pressure in the absence of a cold trap. Measurements using a Pironi type gauge can give different pressure values.
  • Page 17 Table of recommended oils Recommended oils In the vane pumps, we re commend to use only the VARIAN oils in the table below: Mineral oil distill ed under vacuum • Pumping non-corrosive products ° • Low viscosity Mineral oil distilled under vacuum: °...
  • Page 18 Pump dimensions Inch {mm) Hose nipple 0.39 ( 10) mm diam. Inlet NW 16 Exhaust 1 / 4 G � Option : inlet NW 16 2.49 ( 64) � Fill hole 3/8 G 1.27 32.8 ...- � 0 -.------1- +-11-lHH:-li:¾¾¾¾:'.:- I.(') '°...
  • Page 19 Oil mist eliminator • Separates oil droplets and particles contained in P 1137301 Exhaust exhaust gases emitted by the pump. OME SD40 Dust filter • Prevents dust particles larger than 6 micr ons from P 1127301 Inlet DFT 25 • entering the pump.
  • Page 20 At delivery, there is some oil in the functional block. Our pumps are tested in the factory with VARIAN oil: it is recommended to use the same oil during operation. To change the type of oil, refer to the Maintenance Chapter, "replacement of type of oil"...
  • Page 21 Preliminary precautions Be sure to fill the pump with oil (see 27). page rating · At start-up, before switching on the motor, check that the oil bath ° ° temperature is greater than 53 F ( 12 temperature The ambient operating temperature °...

  • Page 22: Start-Up

    Start-up • 21). page Check the oil level (See • Start-up the pump. • Allow the pump to run for one hour with the inlet blocked at ultimate vacuum: During this operation, make sure that the oil circuit is operating. Remove one of the oil fill plugs to listen to the pump.
  • Page 23 25). Single-phase version [see The motor is delivered pre-wired for the specified ordered voitage page It is equipped with a 2 meters lenght power cord. The plug is equipped with o ground pin which must be connected. The motor rotation direction is set at the factory (see page 25). Specific internal protection Single-phase motors (protection IP44-TEFC-type) have a thermal circuit switch with automatic starting device...
  • Page 24 In this table, you will find o standard fuse or motor-associated value. Summary tables of various The characteristics and ratings of fuses and circuit breaker associated with standard VARIAN pump motors, 2 m /h, single-phase. types of motors Single-phase motor...

  • Page 25: Mechanical Connections

    95 F {12 and 35 Inlet and exhaust fitting The pump inlet and exhaust orifices can be used to fit various line components made of stainless steel, plastic, etc. [see Varian catalog). Inlet Exhaust Connection: DN 16 lSOKF. Connection: 10 mm diameter slotter...
  • Page 26 Changing position Depending on the type oF accessories used and the pumping conditions, of inlet fitting this orifice can be Fitted vertically on the pump or horizontally as shown on the diagram below. Note: T he pump is supplied in configuration A.
  • Page 27 General precautions For normal operation, the maintenance of VARIAN SD series pumps only require re g ular oil chan g es.
  • Page 28 Troubleshooting and corrective actions The pump is not running • Incorrect motor power suoply. Check the power suoolv. • Temperature too low. Reheat the pump and its oil. • Gumming of seals after 1 • Disassemble the motor and try prolonged storage.
  • Page 29 10· 2 Torr (10· 2 mbarJ Ultimoie pressure obtained: a few The vacuum pump does produce a vacuum (continued) • Gas ballast adjustment button Close. open. • O-ring pinched. Replace. • One of the seals is Replace. damaaed. • One of the HP safety valves is Replace.
  • Page 30 Drain and fill with new oil. • Oil levei too high. Considerable losses. Use an HP type oil mist eliminator • Operation at high pressure. with oil recovery • Gos ballast open: l - accidentally, l - Close. 2 - pumping of condensable 2 - Use a condensate collector.

  • Page 31: Maintenance

    Maintenance frequency An incorrect ultimate vacuum or a reduction in pumping speed are signs that the oil has deteriorated. The periodic inspection of the slate of the oil is performed by comparison with a sample of new oil in order lo check the level of contamination or deterioration of the lubricant.
  • Page 32 Change of of oil type SD 40 series pumps are tested in the factory with GP or CS type oil unless specified otherwise in the order. When the pump is delivered, a certain quantity of oil remains in the functional block.
  • Page 33 Disassembling the pump Disassembling the oil case· Stand pump on end, resting on the motor. Remove the oil case by unscrew 4 screws holding. Remove the o-ring oil casing. Disassembling the exhaust Remove the valve cover. Remove the complete cover, spacer, valve cover valve and spring .
  • Page 34 � Disassembling the stator With two screwdrivers, uncouple then carefully slide stator, taking care not to damage the rotor, which stays on the front bearing flange. Collect vanes, centering pins, spring and gas ballast ball. [;Il � Uncouple then remove Disassembling the front the flange, rotor and motor coupling.
  • Page 35 Cleaning and preparing components Cleaning metal components Solvents are required to clean components. Standard precautions should be taken in compliance with the manufacturer's instructions. After use in mineral or synthetic oil, clean the metal components with a mineral products based solvent such as AXAREL(l), CARECLEAN(2), PREMACLEAN(3J, NAPHTEOU4l.
  • Page 36 Replacement of shaft seals Specific tools • Specific assembly mandrel. • A support plate (or washer). Recommended tools • A flat screwdriver �. Extracting a shaft seal from With the flange flat, the seal is extracted using a screwdriver, resting on the plate its housing (or washer) so as not lo damage the seal housing.,...
  • Page 37 Reassembling the pump Reassembling the front Install new shaft seals in flange with compliance to instructions of page bearing flange Slide delicately the rotor in place through the lip seals. Fix the motor coupling on the rotor by tightening the screw. Place central housing flat on table with motor side down.
  • Page 38 Reassembling Pour a little oil into the stator the cap side of valve valve hole. Replace the spring. Then mount the valve, the spacer and valve cover on stator. Reassembling the oil case Equip the oil case with new o-ring and mount it on the housing. Tighten the 4 screws.
  • Page 39 Minor kit Pump models Part No. pump which must be replaced at SD 40 P1916301 each complete disassembly. Keep this kit in a dry place, away from heat and light (sunlight and ultraviolet light), in order to prevent any hardening of the elostomers (see AFNOR standards: "storage conditions For vulcanized elastomer based products"...
  • Page 40 Fax: {86) l 257 6321 Mexico Varian S.A. Liverpool 96 Representatives in most countries Colania Juarez 06600 Mexico, D.F. internet Users: Tel: (52) 5 533 5985 Customer service@vpl. varian .com Fax: (52) 5 514 5383 Also see Varian's Home Page ot:...
  • Page 41 121 Hartwell Avenue Lexington, MA 02173 All products sold by Varian and returned by customer are s ubject to Varian Vacuum Products standard terms and conditions of sale including, but not limited to, the warranty and damages and liability provisions set forth in the warranty.