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INSTRUCTION MANUAL
OIL ROTARY VACUUM PUMP
MODEL ： GC-25Sa
MODEL ： GC-50Sa
For safe and efficient use of this pump, please read this
manual carefully before operation.
After reading the manual, keep it in your file for future
reference.
Specifications in this manual are subject to change without
notice due to future improvement.
2-7-19 Shin-yokohama, Kohoku-ku, Yokohama City, Kanagawa 222-8522
Before Use
ULVAC KIKO,Inc.
(3F Tenko Bldg. 50)
Tel: 045-474-2011
No．16100-2-01-3
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Summary of Contents for Ulvac GC-25Sa
- Page 1 No．16100-2-01-3 INSTRUCTION MANUAL OIL ROTARY VACUUM PUMP MODEL ： GC-25Sa MODEL ： GC-50Sa Before Use For safe and efficient use of this pump, please read this manual carefully before operation. After reading the manual, keep it in your file for future reference.
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Page 2: Before Using This Pump
０．Preface 0.1 Before Using This Pump We, ULVAC KIKO,Inc. thank you for purchasing our vacuum pump. When receiving our vacuum pump, please confirm the product is the same Model No. as you ordered. Also, check to make sure there are no damages. -
Page 3: Safety Precautions (General Expression) ・・・・・・・・・02
0.2 Safety precautions (General Expression) Safety precautions are identified in this manual using headers DANGER, WARNING, CAUTION, and NOTE. "Danger" Indicates major hazardous situations, which present an immediate threat of death or serious injury. "Warning" Indicates hazardous situations, which may present a potential to death or serious injury. -
Page 4: Safety Precautions
0.3 Safety Precautions When evacuating toxic or inflammable gas, there may be danger of leaking gas from parts besides inlet port. Practice cautionary steps when working any kind of gases. After evacuating toxic gases, the inside of pump and pump oil is contaminated and toxic. - Page 5 Switch off electric power right away in case of a malfunction to prevent any troubles. In the case of a malfunction, contact your local agent or ULVAC KIKO,Inc. Sales and Service Center immediately. Do not start the pump without pump-oil. Failing to do so will lead to pump destruction.
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Page 6: Acceptance And Store Of Product
(2) Spare parts (single use of pump oil, optional parts) (3) Any damages during transportation. (4) Any loose screws and nuts. If you find any abnormal circumstances, please contact your local ULVAC KIKO,Inc. Sales or Service Center. 0.4.2 Store of Product, Installation, Operating condition This pump is a type of precision equipment;... -
Page 7: Protective Precautions
0.5 Protective Precautions The pump is provided with a single-phase 100V (50/60Hz) motor. An overload protector (manually reset thermal protector) is incorporated. The use of another protective device (such as an earth leakage breaker) in addition to the overload protector is recommended. Do not apply any voltages other than specifically rated for the motor of this pump. -
Page 8: Table Of Contents
High Temperature 1.2 Material Safety Data Sheet(MSDS) ・・・・・・・・・ 2 2. General Description of the Pump ・・・・・・・・・ 3 2.1 Principal Features ・・・・・・・・・ 3 2.2 Dimensional Drawings(GC-25Sa,50Sa) ・・・・・・・・・ 4 3. Setting up ・・・・・・・・・ 6 3.1 Installation ・・・・・・・・・ 6 3.2 Oil charging ・・・・・・・・・ 6 3.3 Vacuum Tubing... - Page 9 7. Product Disposal ・・・・・・・・・24 8. Warranty ・・・・・・・・・24 9. Main Expendable parts ・・・・・・・・・25 9.1 Main Expendable Parts List ・・・・・・・・・25 9.2 Disassembly Drawings(GC-25Sa,50Sa) ・・・・・・・・・26 Attached Sheets (1) Material Safety Data Sheet(MSDS) (2) Check sheet for repair (3) Sales and Service Centers Contents‐2...
- Page 10 DRAWING AND TABLE LIST Fig- 1 General Assembly Drawing of GC-25Sa ・・・・・・・・・ 4 Fig- 2 General Assembly Drawing of GC-50Sa ・・・・・・・・・ 5 Fig- 3 Oil Charge to Rotary Vacuum Pump ・・・・・・・・・ 7 Fig- 4 Vacuum Pumping System Diagram ・・・・・・・・・ 8 Fig- 5 Change region of the voltage and frequency ・・・・・・・・・10...
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Page 11: For Safety Operation
1.For Safety Operation 1.1 Hazardous of Product and Safety Precautions Before operating or inspecting the pump, read this manual carefully. And pay attention to ascertain the detail of potential hazardous and preventive procedure so that must be operated or inspected the pump. 1.1.1 Leakage of hazardous gases and materials Cause... -
Page 12: Warning Explosion
(vacuum pump oil) which is described on MSDS sheet. When applying other vacuum pump oils besides the description in this manual, contact your local ULVAC KIKO,Inc. Sales and Service Center. MSDS presents the reference information of hazardous chemical material to keep safety precautions. -
Page 13: General Description Of The Pump
This oil rotary vacuum pump is a sliding vane type (so called Gaede type), with direct driven motor. As it is a small sized, lightweight, and simple structure, it is easy to maintain or over-haul. Table-1 Specification GC-25Sa GC-50Sa Model Sliding vane... -
Page 14: Dimensional Drawings(Gc-25Sa,50Sa)
2.2 Dimensional Drawings Motor ; Single phase, 100V(50/60Hz), 100W, 4Poles,Split phase starting Weight ; 8.5 kg(with motor) Fig-1 General Assembly Drawing of GC-25Sa ‐4‐... -
Page 15: Fig- 2 General Assembly Drawing Of Gc-50Sa
Motor ; Singhle phase, 100V(50/60Hz), 200W, 4Poles, Split phase starting Weight ; 11.0kg(with motor) Fig-2 General Assembly Drawing of GC-50Sa ‐5‐... -
Page 16: Setting Up
3. Setting up 3.1 Installation Installation must be done at a place of low moisture, low dust particle, and also level. The layout arrangement should be considered for setting up, overhaul, checking, or cleaning the pump. When setting up the pump in any systems, pay attention to temperature in atmosphere. -
Page 17: Fig-3 Oil Charge To Rotary Vacuum Pump
Fig-3 Oil Charge to Rotary Vacuum Pump ① Wear protective rubber gloves or goggles. ② Before charging oils ,read the 「1.2 Material Safety Data Sheet(MSDS)」 . When the contaminated oil touching the skin or coming into the eye accidentally, follow the item first-aid-treatment of「Material Safety Data Sheet(MSDS)」. -
Page 18: Vacuum Tubing
3.3 Vacuum Tubing (1) Clean inner surfaces of vacuum vessel, tubing and valve. Then, after eliminating water moisture, small particle, dust or rust carefully, connect tube to the pump. If evacuating small size powder or dust particle, vacuum pump may cause trouble. -
Page 19: Electric Wiring
3.4 Electric wiring (1) This pump has performed beforehand electric wiring by the side of a pump. (2) Plug the power wire cord in the power outlet of 100V, single phase. (3) The over-load protector (thermal protector, manual reset type) is provided for this pump. -
Page 20: Fig- 5 Change Region Of The Voltage And Frequency ・・・・・・・・・10
3.5 Fluctuations in the power voltage and frequency Standard: Rotation electricity machine general rules JIS C 4034-1:1999，JEC-2137-2000 To the voltage change and frequency change in Domain A, in main rated values, it operates continuously, and can be used practically convenient, and to the voltage change and frequency change in Domain B, it shall operate with main rated values and shall be used practically convenient. - Page 21 4.Operating Instructions 4.1 Operating precautions Explosion hazard. Do not plug the exhaust port or place any materials inside of the exhaust port, because it will reduce pumping speed during operation. Pump explosion, oil level gauge bursting, or over loading of the motor are consequences of excessive pressure inside the pump.
- Page 22 After operating the pump for several hours, oil temperature inside the pump may be risen up to 70 ～80°C. If the temperature is over this, the pump may have troubles. Maintain the pump, or contact ULVAC KIKO ,Inc. ‐12‐...
- Page 23 4.3 Shut down Operation Close shut off valve (A), open pump vent valve (B), then turn off power switch of the pump(see Fig 4). If stopping the pump by no opening pump vent valve, the oil will be filled inside the pump cylinder within several minutes. This may cause back flowing oil to the vacuum vessel.
- Page 24 4.5 Set up oil mist trap (option) Oil mist trap OMT-050A for GC-25Sa, 50Sa can be equipped for trapping oil mist out of the pump. After eliminating the standard exhaust pipe, equip the oil mist trap to the exhaust port.
- Page 25 The 「Ultimate Pressure」described in the catalog or this manual means obtainable minimum pressure by vacuum pumping at inlet port without conducting gas (no load operating). Our ULVAC KIKO,Inc. applies the specified pump oil and measures the pressure at inlet port attached the sensor of only the Pirani gauge.
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Page 26: Fig- 6 Characteristics Of Vacuum Pumping Speed ・・・・・・・・・16
Fig-6 Characteristics of Vacuum pumping speed ‐16‐... - Page 27 6.Maintenance, Inspection, Repair 6.1 Maintenance Check and confirm the following items at least every 3 days while operating. (1) Oil level is in red ring marking of oil gauge. (2) Change in color of the oil. (3) Usual sound or not? (4) Motor current, normal or not? (5) Oil leak from oil seal assembly.
- Page 28 When happening the oil leakage from shaft seals or drain-plug seals, repair must be needed. As our service center provides the specified O-rings or seals, please contact your local ULVAC KIKO, Inc. service center. (4) Inspecting the mesh filter in the inlet port Any dust included in evacuated gases may cause clog the mesh filter and down pumping efficiency.
- Page 29 Besides the inspecting items mentioned above, overhaul is useful when continuing the operation for long term or observing heavy contaminated oils. Please contact your local ULVAC KIKO,Inc. Sales and Service Center. When requesting overhaul or repair the pump, inform the sort of evacuated gases on the "Check sheet for repair"...
- Page 30 When evacuating toxic gases, the pump body and the pump oil may cause toxic. Pay attention certainly. ① Wear suitable protector (rubber gloves, goggles). 1.2 Material Safety Data ② Before charging the oil, read the「 Sheet(MSDS) 」. When the contaminated oil touched skin or came into 1.2 Material eye accidentally, follow the first-aid-treatment of「...
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Page 31: Fig- 7 Replacement Of Spider In Coupling ・・・・・・・・・21
6.4 Replacement of Spider in Coupling The spider (made of rubber) is used between the pump head and the motor. It is recommended that it be checked once a year and replaced if found defective. If the pump is started and stopped hundreds of times per day, it is necessary to check it within a shorter time. - Page 32 6.5 Trouble Check List Table-3 Trouble Check List Trouble Cause Procedure Note No rotating pump ① No connecting power ① Connect power cord ② Power switch off ② Turn on power switch ③ Abnormal input voltage ③ Adjust input voltage within ±10% ④...
- Page 33 Trouble Cause Procedure Note ⑧ Leakage from the tube ⑧ Detect leakage by the leak connection with the pump detector, and stop leakage ⑨ Applying no specified oil ⑨ Charge specified oil after overhauling or repairing ⑩ No circulating oil. ⑩...
- Page 34 8.Warranty (1) ULVAC KIKO,Inc. warrants the product for one (1) year from date of shipment out of our factory unless otherwise negotiated at time of sale. (2) ULVAC KIKO,Inc. will reconditions the product without charge for any problems under normal operational conditions during the warranty period.
- Page 35 JIS B 2401 P-18 Casing 00092022 O-Ring S-15 (NOK) Discharge valve − GC-25Sa…2 10750062 9×24×t0.1 Pomp GC-50Sa…3 00093107 Oil-seal SC15-30-7 (NOK) 10830063 Vane(GC-25Sa) 20×13×t4 S45C Rotor 11130062 Vane(GC-50Sa) 45×13×t4 S45C φ2.4×24 11190061 Vane spring Side cover 10 00091003 Ball bearing 6900open Casing 11 00092081 O-Ring S-120.9 (NOK)
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Page 36: Fig- 8 Disassembly Drawing Of
9.2 Disassembly Drawing Fig-8 Disassembly Drawing of GC-25Sa、GC-50Sa ‐26‐... - Page 37 No.10100‑2‑02‑2 (Attached paper) Material Safety Data Sheet (MSDS) The chemical material, which is applied or possible to contact when operating this pump are described. Read this manual carefully to understand characteristics of the chemical material (vacuum pump oil) which is described on MSDS sheet. When applying other vacuum pump oils besides the description in this manual, contact your local ULVAC SINKU‑KIKO Co., LTD Sales and Service Center. MSDS presents the reference information of hazardous chemical material to keep safety precautions. When handling the pump oil, it is necessary to take proper and practical treatments which are adapted handling the oil. After understanding the above mention, these treatments must be done. Therefore, MSDS is a not safety warranty. Attached Table Material Safety Data Sheet Vacuum Pump Oil SMR‑100 Section Ⅰ‑ Hazardous Ingredients/ Identity Information Hazardous Components Other Limits (Specific Chemical Identity; Common Name(S)) OSHA PEL ACGIH TLV Recommended %(optional) *Mineral oil(Highly‑refined oil) n/e n/e n/e 100% (*Hazardous Components) (n/e = not established) Section Ⅱ‑ Physical/ Chemical Characteristics Boiling Point (℃/ mmHg) 165℃/0.1mmHg Specific Gravity (H O=1) 165℃/13Pa 0.88(15/4℃) ‑４ Vapor Pressure (mmHg/℃) 1.0×10 mmHg/50℃ Pour Point (℃) ‑2 1.3×10 /50 ‑15.0℃max. Vapor Density (Air=1) Evaporation Rate >1 ...
- Page 38 No.10100‑2‑02‑2 Special Fire Fighting Procedures Fire fighters or others exposed to products of combustion should wear protective clothing including self‑containing breathing apparatus. Usual Fire and Explosion Hazard None Section Ⅳ‑ Reactivity Data Stability Unstable Condition to Avoid High temperature exceeding 100℃ in storing Stable × Incompatibility (Materials to Avoid) Strong oxidizing agents. Hazardous Decomposition or Byproducts none Hazardous May occur Condition to Avoid. Polymerization High temperature exceeding 100℃ in storing Will not occur × Section Ⅴ‑ Health Hazard Data Route(s) of Entry: Inhalation? Skin? Ingestion? No Yes(Slightly) Unlikely Health Hazards(Acute and Chronic) Acute Oral Toxicity; No information Skin irritation ; Mildly irritating Eye irritation ; Mildly irritating Carcinogen city: NTP ? IARC Monographs? OSHA Regulated? ...
- Page 39 No.10100‑2‑02‑2 Section Ⅵ‑ Precautions for Safe Handling and use Steps to Be Taken in Case Material is Released or Spilled Eliminate ignition sources. Remove free liquid into an empty container. Use suitable absorbents for the un‑recovered fluid. In case of a large amount of leak or spill, lead the flow of the liquid to a safety place by means of banking with sand or any other appropriate materials. Then recover it. Waste Disposal Method Dispose the waste according to federal, state and local regulations. Precautions to Be Taken in Handling and Storing Use with adequate ventilation. Wear safety gloves and glasses. Store indoors and close tightly with cap. Keep the storage temperature in the range from 0℃ to 40℃. Keep away from heat, open flame, sparks and other possible ignition sources. Prevent accumulation of static electricity. Keep away from halogens, strong acids, alkaline agents and oxidizing agents, and do not store the product in the same place. Other Precautions Avoid contact with eyes, skin and clothing. Section Ⅶ‑ Control Measures Respiratory Protection (Specific Type) Not normally required. Ventilation Local Exhaust Special Not normally required. None Mechanical (General) Other Recommended. ...
- Page 40 CHECK SHEET FOR REPAIR Please inform the following items completely for safety precautions against our maintenance staff. Date of issue Customers name Person in charge TEL No. － － Ext. FAX No. － － Representative Distributor Person in charge TEL No. －...
- Page 41 < ULVAC KIKO,Inc. > Head office, sales division 2-7-19 Shin-yokohama, Kohoku-ku, Yokohama City, Kanagawa 222-8522 (3F Tenko Bldg. 50) Tel: 045-474-2011 Fax: 045-474-2010 Inspection Certificate Product: Oil sealed rotary vacuum pump Model: GC-25Sa GC-50Sa Inspected by:...