Diaphragm Type Metering - Dosing Pumps by Transflo Pumps Private Limited

Diaphragm Type Metering Pump
Transflo Metering Pumps are high precision positive displacement pumps, as per API 675 code. The discharge can be varied from zero to 100% capacity while pumps are running. Metering Pump capacity is almost independent of the discharge pressure.

Diaphragm Type Metering - Dosing Pumps.
Diaphragm  Pump  heads  are  recommended  for  critical, abrasive,  toxic  or  poisonous  or  Flammable  liquids where  any product  leakage  is  not  acceptable. 

Working Principle:
The reciprocating  plunger  displaces  hydraulic fluid  causing  movement  of  the  diaphragm  and  a  like movement  of  the  process  liquid.  The  diaphragm separates  Hydraulic fluid  and  process  liquid.  A pressure limiting valves prevents overload of the pump. The  internal  leak age  at  the  plunger  is  balanced  by  the leakage  replenishment  valve. Thus  the  diaphragm always  operates  in  an  optimal  operating  range.  This  diaphragm control gives very high operational safety.

The  diaphragm  has  a  long  life  as  it  is  always  in  hydraulic  balance  with  the  liquid being pumped  on one side and hydraulic oil on  the other side.  The  system  is safe  guarded  by a built- in pressure relief valve on the hydraulic side. 

Variations and Options
Diaphragm  Head

• Simple Diaphragm head for normal  application
• Double Diaphragm for higher operating security
• Sandwich  Diaphragm  with Leak Protection System

Stroke Adjustment

• Hand Operated Stroke Length Indicator

Drives

• Electrical, AC Drive, 3 Phase / Single Phase Motor
• Flameproof  / AIR Motor for Flameproof Environment

Material Of Construction - Wetted  Parts

• SS 304 / SS 316, PP & Teflon in Diaphragm Type Homogenizing etc.

Typical Applications :
Accurate Dosing and Mixing of Acids, Alkalis, Slurries,  Safe transfer of Viscous Liquids, Pastes, Ointments, Drum Decanting.