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WARNING 

•  When pumping a hazardous fluid (hot, flammable, strong acid, etc.) with this product, 

provide protective measures (install a pit, a protection box, sensors, etc.) in consideration of 

possible leakage of fluid, and post warning   
signs at necessary places.                                                           

Make the warning symbols in                                                                                                 

[13.Warning symbols], and attach   

them to the casing and piping, etc.   
Leakage of fluid may cause fire,   

air pollution or a serious accident.   

When pumping a hot fluid, the   
casing and piping will become hot,   

which may burn the skin when   

touched. 

 
 

 

•  Before using this product, be sure you are familiar with the precautions regarding the fluid 

to be pumped, and verify the corrosion resistance of the parts that will come into contact 

with the fluid. NEVER use the product with any fluid against which it does not have 

sufficient corrosion resistance or with a fluid that poses a risk of explosion. If you are unsure 
of the corrosion resistance, contact your dealer or our regional office. If you use this product 

with any fluid against which the parts that will come in contact with the fluid do not have 

sufficient corrosion resistance, it may result in damaging the product or leakage of fluid. 

 
•  When working in the vicinity of pumping of fluid with this product, be sure to wear 

protective gear (goggles, mask, etc.). 

 

•  When using this product, observe the relevant regulatory rules concerning fire prevention, 

labor safety standards, etc. 

 
•  If you have any questions on the operation of this product (method of connection or 

installation), contact your dealer or our regional office. 

 

 

                                         

CAUTION 

•  When operating this product, it may generate loud operating noise, depending upon the 

condition of use (fluid pumped, supply air pressure and discharge pressure). If regulatory 

rules apply, provide appropriate acoustic measures where necessary. (For the noise value of 

this product, see [10.1 Main specifications].) 

 
•  To drive this product, use supply air with minimum moisture content. 

 

 
•  If a diaphragm of this product is damaged, supply air may mix with the fluid or the fluid 

may flow into the main body (air-switching portion). If air supply is inadequate or 

contaminated, do NOT operate the pump. 

 

•  While operating this product, do NOT cover the intake port by hand. 

 

 
•  If the pump remains unused for a long period of time, or you have misgivings about running 

the pump, please consult with the dealer where you purchased it or our Sales office. 

 

 

Fig.0.1 

Содержание NDP-P20 Series

Страница 1: ...Doc No NDP237U 07 OPERATION MANUAL YAMADA AIR OPERATED DIAPHRAGM PUMPS NDP P20 series NDP P25 series...

Страница 2: ......

Страница 3: ......

Страница 4: ......

Страница 5: ...lene polyvinylidene fluoride depending on the model you have selected according to the type of fluid to be pumped The diaphragms are made of a thermoplastic elastomer material suitable for the Applica...

Страница 6: ...rking pressure at the specific temperature of the liquid being pumped Air pressure and discharge pressure must not exceed the allowable working pressure If air pressure and discharge pressure exceed t...

Страница 7: ...rly insulated to prevent conduction with each other Do NOT operate heating devices that create flames or have heating filaments anywhere near the pump or its piping If there are flammable gases in the...

Страница 8: ...ion resistance it may result in damaging the product or leakage of fluid When working in the vicinity of pumping of fluid with this product be sure to wear protective gear goggles mask etc When using...

Страница 9: ...Releasing the pressure 14 6 Method of cleaning 15 7 Daily check 16 8 Troubleshooting 8 1 Pump does not run 16 8 2 Pump runs but fluid does not come out 16 8 3 Flow discharge quantity decreased 16 8 4...

Страница 10: ...ching Portion PPG Fluid contact Portion ADC12 Diaphragm CR NBR EPDM FKM PTFE TPEE TPO TPEE Ball O Ring CR NBR NBR EPDM FKM PTFE TPEE NBR TPO EPDM PTFE NBR Valve Seat SMS1025 Center Disk SUS316 A5056 S...

Страница 11: ...Portion PPG Diaphragm CR NBR EPDM FKM PTFE TPEE TPO TPEE Ball O Ring CR NBR NBR EPDM FKM PTFE TPEE NBR TPO EPDM PTFE NBR Valve Seat PPG Center Disk PPG SCS13 1 Polyvinylidene fluoride type Type BVE BV...

Страница 12: ...apped or taped for shipment Remove the caps and tapes When installing accessories make sure that no foreign matter falls into the product as it could cause malfunction of the switching portion Cover a...

Страница 13: ...Try to keep the suction lift as short as possible To protect diaphragm from abnormal breakage inlet pressure must be kept below the following values PTFE diaphragm 0 02 MPa height 2 m During operation...

Страница 14: ...provide protective measures installation of a pit or sensors etc in consideration of possible leakage of fluid and post warning signs at necessary places For details see the applicable operating caut...

Страница 15: ...p to stop larger particles Otherwise such particles may cause a malfunction If depending upon the place of pump installation the volume of the pumped fluid changes drastically install a relief valve o...

Страница 16: ...supply enough air to run the pump The air compressor should be able to provide adequate air flow to the pump Attach the compressor as close as possible to the pump considering operability and stabili...

Страница 17: ...case of use lubricator must be used turbine oil none addition class 1 turbine oil equivalent ISO VG32 grade for lubricants Do not apply lubricants more than required and also do not use any other lub...

Страница 18: ...erloaded and this may cause damage such as bending of the center rod After finishing your work purge the remaining fluid from the pump see 6 Method of cleaning 5 4 Releasing the pressure 1 Make sure t...

Страница 19: ...h different hoses to the suction side and the discharge side for cleaning 4 Be ready with a vessel with cleaning solution select cleaning solution appropriate for the type of fluid pumped and then con...

Страница 20: ...ith sludge Check and clean the fluid piping The pump is clogged with sludge Disassemble the casing check and clean 8 2 Pump runs but fluid does not come out Cause Action to be taken The suction lift o...

Страница 21: ...supply air pressure is too high Adjust the supply air pressure The spool oscillates and occur ball chattering Adjust the supply air pressure and exhaust pressure Connection parts and pump mounting ar...

Страница 22: ...level 4 92 dB 96 dB Weight 7 5 kg 12 5 kg 7 0 kg NDP P25 metal type series NDP P25 Type BA BAT BS BST Nominal Diameter 1 25 mm Suction Port Fluid Connection Discharge Port Rc 1 Supply Port Rc 3 8 Air...

Страница 23: ...L min ANR 1800 L min ANR 1600 L min ANR 1800 L min ANR Slurry Limitation 3 mm or less Limitation of Viscosity Suction Lift 3Pa s or below Force In 8Pa s or below Temp 0 70 C Operating Ambient Temperat...

Страница 24: ...20 10 2 Appearance and dimensions 10 2 1 NDP P20 series NDP P20BA NDP P20BS NDP P20BP THREAD TYPE...

Страница 25: ...21 NDP P20BP FLANGE TYPE 10 2 2 NDP P25 series NDP P25BA NDP P25BS...

Страница 26: ...22 NDP P25BP THREAD TYPE NDP P25BP FLANGE TYPE...

Страница 27: ...25BV THREAD TYPE NDP P25BV FLANGE TYPE CAUTION Due to improvement or modification of products dimensions may change without notice Please contact your distributor our regional office for detailed info...

Страница 28: ...24 10 3 Performance curve 10 3 1 NDP P20 series NDP P20BA BS BP NDP P20BAT BST BPT 10 3 2 NDP P25 series NDP P25BA BS BP BV NDP P25BAT BST BPT BVT...

Страница 29: ...ocedure Conditions a Supplied air pressure Maintaining preset pressure b Liquid pumped Fresh water c Temperature Ambient d Condition of suction Flat suction 0 meter head e Measuring system System A Co...

Страница 30: ...L No Product name Product No Date of product Period of use From to SERIAL No Lot No Operating conditions Indoor Outdoor Frequency of operation Continuous Intermittent Hours day week month Date of purc...

Страница 31: ...rising from use with a fluid that may cause corrosion inflation or dissolution of the component parts of the product 4 Irregularity arising from repair made by other than by our firm our regional offi...

Страница 32: ...28 13 Warning symbols BEWARE HIGH TEMPERATURE ELECTRIC SHOCK POISON FLAMMABLE CORROSION EXPLOSION General warnings cautions and danger notifications FIRE STRICTLY PROHIBITED...

Страница 33: ......

Страница 34: ...AL DEPARTMENT No 1 3 1 Chome Minami Magome Ohta Ku Tokyo 143 8504 Japan PHONE 81 0 3 3777 0241 FAX 81 0 3 3777 0584 YAMADA EUROPE B V Aquamarijnstraat 50 7554 NS Hengelo O The Netherlands PHONE 31 0 7...

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