MDP 1000 OPERATING INSTRUCTIONS PUMP MDP 1000 OPERATING INSTRUCTIONS

Transcription

1 MDP 1000 OPERATING INSTRUCTIONS PUMP MDP 1000 OPERATING INSTRUCTIONS SAINT-GOBAIN PERFORMANCE PLASTICS FRANCE SAINT-GOBAIN PERFORMANCE PLASTICS EADAC DES BERTHILLIERS 7301 Orangewood Avenue F CHARNAY LES MACON Garden Grove, CA Tel: 33. (0) Tel: 1(714) Fax: 33. (0) Fax: 1 (714)

2 INDEX Page I General 2 I.1 Introduction I.2 Materials I.3 Operation description I.4 Pump Data II Quick Checklist 2 II.1 Shipment II.2 Reception III Installation and operation 3 III.1 Testing III.2 Set up III.3 Connections III.3.1 Air/nitrogen connections III.3.2 Fluid connections III.4 Initial tests and adjustments IV Applications 3 IV.1 Chemical compatibility IV.2 Temperature range IV.3 Cleaning IV.4 Single stroke adjustment IV.5 Limitations of use V Trouble shooting 5 VI Warranty, safety 5 Appendix: 7 Section view Dimensions Pneumatic wiring diagram

3 Thank you for selecting a SAINT-GOBAIN PERFORMANCE PLASTICS model MDP 1000 pump. I General I.1 Introduction The model MDP 1000 is a pneumatically operated PFA/PTFE dosing pump. The pump is designed for dosing of chemicals. I.2 Materials All wetted parts are manufactured from PFA and PTFE. I.3 Operation description In this pneumatically operated dosing pump, there is a PTFE rolling diaphragm connected to a piston by a shaft. During the suction cycle, air/nitrogen enters the piston. On discharge cycle air/pressure is released and a spring pushes forward the piston. The pump is self-priming and has check valves. The pump stroke volume is adjusted manually with a fine adjustable stem at the top of the pump. The pump speed varies with operating conditions ( air pressure, viscosity, density.) I.4 Pump data The main characteristics of the MPD 50 pump are: Repeatability +/- 1% Dispense volume per shot 0 to 10 ml Dispense speed 3.3 to 10 ml/s max Delivery pressure 55 psig (3.8 bar) max at 70 psig (4.8 bar) air actuation Air/nitrogen pressure psig (3,4-4,8 bar) Suction height 2 feet (0,6m) based on water Product viscosity 50 cpo max Liquid temperature 41 F to 180 F (5 C to 82 C) Ambient temperature 32 F to 120 F (0 C to 50 C) Fluid connection 1/4" Flare Grip II Pump air connection 1/8 FNPT Weight of the pump 910 g II Quick Checklist II.1 Shipment Pump is cleaned, sealed in plastic bag, and packed in an individual carton. II.2 Reception On receipt of the pump, check: The carton has not been damaged in transit. If there are signs of damage, you should report this immediately to the carrier. 2/7

4 The pump is not damaged. If there are signs of damage you should report this immediately your local distributor. The parts and operating instructions are included in the carton with the pump. III Installation and Operation III.1 Testing All pumps are factory tested in our clean room for: Maximum and minimum stroke Delivery pressure and suction head Dispense speed Repeatability No liquid or air leaks III.2 Set up The pump must be positioned on its feet on a horizontal support, as shown on the general arrangement drawing. If not, the pump body will not fill properly. III.3 Connections III.3.1 Air/nitrogen connections Air/nitrogen must be dry, non-lubricated, filtrated 20µ or less. Pressure range is psi (3, 4-4, 8 bar). Air line must be connected to actuation pressure port indicated in the drawing below. Thread connection is 1/8 FNPT. Drawing at the end of the manual describes a typical pneumatic installation. Unidirectional valve is to control the speed of the suction cycle. The integrated check valve is for a quick release of the pressure during the discharge cycle. 3/2 way valve is necessary for the on/off cycle of the pump. When the 3/2 valve is actuated it is the suction cycle. When the 3/2 valve is not actuated it is the discharge cycle. Pressure regulator is to setup the right pressure. Filter: If the air/nitrogen of the main line is not filtered, it is necessary to install a filter to protect the pneumatic actuator of the pump III.3.2 Fluid connections The pump is self-priming. An arrow located on the pump's body shows the fluid direction. The inlet is and the outlet has 1/4" Flare Grip II connexions. III.3 Initial tests and adjustments Before commissioning the pump, we recommend testing it dry with a supply pressure of 58 psig (4 bar) to ensure the system works correctly. Before using the pump with chemicals please check: Pump is correctly fixed on the support : the base of the pump must be screwed on the support The air/nitrogen supply is between psi (3,4-4,8 bar), The inlet and outlet fluid connections are correctly fitted and tight. 3/7

5 IV Applications IV.1 Chemical compatibility Wetted parts are manufactured from PTFE and PFA and are suitable for pumping even the most corrosive concentrated chemicals: H 2 SO 4, HNO 3, HF, H 3 PO 4, HCl, NH 4 OH, KOH, NaOH, CH 3 COOH, TMAH, H 2 O 2... The viscosity of the liquids must be less 50 cpo Very abrasive liquids and liquids that crystallize are not recommended. Please call SGPPL if you require information on chemical compatibility. IV.2 Temperature range The pump can handle liquids from 41 F to 180 F (5 C to 82 C). When the fluid temperature is greater than 140 F (60 C) you must check from time to time that the delivery/suction manifold nuts are fully tight. For special applications call SGPPL or your local distributor. IV.3 Cleaning The plastic design of the MDP 1000 pump wetted parts allows the use of any cleaning materials. When flushing the pump, it is better to adjust it for maximum flow per stroke. IV.4 Single stroke adjustment To adjust the stroke, please proceed as follows: 1) Check fluid connections, 2) Prime the pumps until the fluid line is full (no more air bubbles visible in suction and discharge line). It is recommended to adjust the stem to the maximum stroke. 3) Check the delivered volume of liquid with a calibrated beaker, test tube or a precision balance to calculate the single stroke. 4) If unit stroke is not as required, screw on the adjustable stem to reduce the stroke, or unscrew it to increase the volume. 5) Repeat the stroke until you get the required volume of liquid per shot. 6) When the adjustment is achieved lock the position of the adjustable stem with the lock nut. Now, your pump is ready to run. CAUTION: if you modify air pressure and/or air flow rate after adjustment, this will affect the stroke volume. Once you have reached the required stroke, the stroke volume is repeatable to +/- 1%. Nevertheless, we recommend checking the stroke volume regularly, especially if external conditions are varying (backpressure, suction head, temperature, fluid...) IV.5 Limitations of use To obtain the best results from your pump, you should not: Operate the pump outside pressure ranges Restrict suction side (valves, filters...), Connect the pump inlet with liquid under pressure, Exceed the maximum or minimum temperature limits, Pump too viscous or abrasive liquids, Try to adjust the unit stroke beyond the specified range Exceed the pumping speed Forget to respect connection specifications (see encl. diagrams). 4/7

6 Any of the above may be detrimental to the normal operation and life expectancy of the pump unit and may void the warranty. If the pump is being used with very corrosive chemicals and is left for extended periods not in use, we recommend that the system be emptied and flushed. V Trouble shooting If the pump stops for any reason, check: The air/nitrogen supply, That all valves in the chemical line are open, That all inlet and outlet regulators are open, That connections and tubes between pump and control unit are in good condition. You are following your local Health and Safety Regulations with regard to the particular chemical. The above is based on SGPPL experience. SGPPL cannot be held responsible for premature failures if the pump is misused or damaged due to an incorrect application. VI Warranty SGPPL pumps and accessories are warranted for all parts and labour against faulty workmanship (return to factory) for one year from delivery date. SGPPL is not responsible for damage to its products through improper installation, maintenance, use or attempts to operate them beyond their mechanical capability, intentionally or otherwise, or for unauthorized repair. SGPPL shall not be liable for any indirect, special, incidental or consequential damages resulting from the use, failure or malfunction of any product. Safety hints Installation, operation, and maintenance by qualified staff only. Before start-up respectively after the first hours of operation, the nuts must be checked for tightness; if necessary they have to be tightened. This may also be necessary after longer periods of stoppage, with large variations of temperature, transport as well as disassembly of the pump. Before start-up of the pump, operators should become acquainted with the Troubleshooting section of this manual. Problems which cannot be solved or with an unknown reason should be passed on to the manufacturer. the liquid conveyed might escape from the leak detection port in the event of a diaphragm rupture. Flaregrip II Saint-Gobain Performance Plastics registered trademark 5/7

7 Chemical reactions in the product chamber of the pump (mixture of different substances) and the freezing of the liquid have to be avoided. Before putting the pump back into operation, the tightness of the pump has to be checked. The operation of the pump with nitrogen as driving gas is possible. In closed rooms sufficient ventilation must be provided. Procedure for pump return: every unit which is send to SGPPL has to be accompanied by a RGA (return goods authorization) sheet. Otherwise a processing is not possible. Please contact SGPPL or local distributor to get the RGA file. All pumps returned to SGPPL must be decontaminated When the pump is handling liquids higher than 122 F (50 C), avoid direct contact with the pump or piping system. Use appropriate hand protection if handling of the pump or piping is necessary. Always wear protective gear (goggles, face shield, acid resistant gloves, etc.), when removing or servicing the pump. In addition, flush the pump completely with di water prior to any service or maintenance. Ensure suction or discharge line valves are fully opened during pump operation. Never Close a suction or discharge line valve during operation. Any fluctuation in supply air pressure or volume causes a change in pump discharge. Install a regulating valve to stabilize supply air pressure. When pumping a hazardous liquid, ventilating the cabinet is advised to remove toxic gas which may permeate components and build up inside the equipment. 6/7

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