SAINT-GOBAIN MDP 50 User manual
MDP 50 OPERATING INSTRUCTIONS
PUMP
MDP 50
OPERATING INSTRUCTIONS
SAINT-GOBAIN PERFORMANCE SAINT-GOBAIN PERFORMANCE PLASTICS
PLASTICS FRANCE
EADAC DES BERTHILLIERS 7301 Orangewood Avenue
-71850 CHARNAY LES MACON Garden Grove, CA 92841
Tel: 33. (0) 3 85 20 27 00 Tel: 1(714) 630 5818
ax: 33. (0) 3 85 29 18 48 ax: 1 (714) 688 2614
www.microelectronics.saint-gobain.com
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 – luid 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
2/7
Thank you for selecting a SAINT-GOBAIN PER ORMANCE PLASTICS model MDP 50 pump.
I – General
I.1 – In roduc ion
The model MDP 50 is a pneumatically operated P A/PT E dosing pump.
The pump is designed for dosing of chemicals.
I.2 – Ma erials
All wetted parts are manufactured from P A and PT E.
I.3 – Opera ion descrip ion
In this pneumatically operated dosing pump, there is a PT E 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 da a
The main characteristics of the MPD 50 pump are:
• Repeatability +/- 1%
• Dispense volume per shot 0 to 0,5 mL
• Dispense speed 0 to 0,5 mL/s max
• Delivery pressure 4.3 psig (0.3 bar) max at 70 psig (4.8 bar) air actuation
• Air/nitrogen pressure 50-70 psig (3,4-4,8 bar)
• Suction height 2 feet (0,6m) based on water
• Product viscosity 50 cPo max
• Liquid temperature 41° to 180° (5°C to 82°C)
• Ambient temperature 32° to 120° (0°C to 50°C)
• luid connection 1/4" lare Grip II®
• Pump air connection 1/8” BSPT
• Weight of the pump 435g
II – Quick Checklis
II.1 – Shipmen
Pump is cleaned, sealed in plastic bag, and packed in an individual carton.
II.2 – Recep ion
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.
3/7
• 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 – Ins alla ion and Opera ion
III.1 – Tes ing
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 – Se up
The pump must be posi ioned on i s fee on a horizon al suppor , as shown on the general
arrangement drawing. If not, the pump body will not fill properly.
III.3 – Connec ions
III.3.1 – Air/ni rogen connec ions
Air/nitrogen must be dry, non-lubricated, filtrated 20µ or less.
Pressure range is 50-70 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”BSPT.
Drawing at the end of the manual describes a typical pneumatic installation.
Unidirec ional 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 regula or is to setup the right pressure.
Fil er: 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 connec ions
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" lare Grip II connexions.
III.3 – Ini ial es s and adjus men s
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 50-70 psi (3,4-4,8 bar),
• The inlet and outlet fluid connections are correctly fitted and tight.
4/7
IV – Applica ions
IV.1 – Chemical compa ibili y
Wetted parts are manufactured from PT E and P A and are suitable for pumping even the most
corrosive concentrated chemicals: H
2
SO
4
, HNO
3
, H , 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 – Tempera ure range
The pump can handle liquids from 41 ° to 180 ° (5 °C to 82 °C).
When the fluid temperature is greater than 140 ° (60 °C) you must check from time to time that the
delivery/suction manifold nuts are fully tight.
or special applications call SGPPL or your local distributor.
IV.3 – Cleaning
The plastic design of the MDP 50 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 s roke adjus men
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 – Limi a ions of use
To ob ain he bes resul s from your pump, you should no :
• Opera e he pump ou side pressure ranges
• Res ric suc ion side (valves, fil ers...),
• Connec he pump inle wi h liquid under pressure,
• Exceed he maximum or minimum empera ure limi s,
• Pump oo viscous or abrasive liquids,
• Try o adjus he uni s roke beyond he specified range
• Exceed he pumping speed
• Forge o respec connec ion specifica ions (see encl. diagrams).
5/7
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 shoo ing
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 Heal h and Safe y Regula ions wi h regard o he par icular
chemical.
The above is based on SGPPL experience.
SGPPL canno be held responsible for prema ure failures if he pump is misused or
damaged due o an incorrec applica ion.
VI – Warran y
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.
Safe y hin s
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.
® laregrip II Saint-Gobain Performance Plastics registered trademark
6/7
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 re urned o SGPPL mus be decon amina ed
When the pump is handling liquids higher than 122° (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.
7/7
Table of contents
Other SAINT-GOBAIN Water Pump manuals
Popular Water Pump manuals by other brands
Sykes AmeriPumps
Sykes AmeriPumps GP100M Operation and maintenance instructions
DUROMAX
DUROMAX XP WX Series user manual
BRINKMANN PUMPS
BRINKMANN PUMPS SBF550 operating instructions
Franklin Electric
Franklin Electric IPS Installation & operation manual
Xylem
Xylem e-1532 Series instruction manual
Milton Roy
Milton Roy PRIMEROYAL instruction manual