SR series. SD type

SR series. SD type

CONTACT US +91 9028574063

Spring return sandwich hydraulic diaphragm dosing pump. „SD” Series – Sandwich Hydraulic diaphragm metering pumps are normally used when:

  • The dosed liquid contains small amounts of suspended solids
  • No leakage are accepted
  • The dosed liquid is a toxic solution
  • High pressure is required

Each pump is fitted with a standard gearbox reduction system with a vertical mounted motor. The reduction gearbox is of a standard endless screw plus worm-wheel type, supported by bearing, fully lubricated in oil bath.

Stroke adjustment can be carried with the pump at rest or in operation and it can be manual or automatic through automatic actuator driven by 4-20 mA; different BUS; pneumatic. A built-in safety valve is installed in the hydraulic circuit, in order to protect the diaphragm against over pressure.

The peculiarity of this pump is the special sandwich diaphragm and the reliability of the diaphragm rupture detection system. Furthermore they comply with ATEX standard, therefore they can be installed in Hazardous area.

FAST FACTS

  • Max Capacity: 1068 l/h
  • Max Operating Pressure: 14 bar (40 bar for high-pressure version)
  • Construction Materials: AISI 316L, PP, PVC, or PVDF
  • Certifications: ATEX, FDA, EC 1935/2004

FEATURES & BENEFITS

  • Versatility – available in various sizes adapted to different applications, with capacities ranging from 1.5 to 1068 l/h.
  • Reliability – high accuracy and repeatability, along with high-quality materials, ensure maximum reliability of the SR series pumps.
  • Top quality – optimal selection of diaphragm material provides excellent performance for every application.
  • Explosion-proof design – compliant with ATEX Directive, Category II 2G, for operation in hazardous areas.

Spring return sandwich hydraulic diaphragm dosing pump. „SD” Series – Sandwich Hydraulic diaphragm metering pumps are normally used when:

  • The dosed liquid contains small amounts of suspended solids
  • No leakage are accepted
  • The dosed liquid is a toxic solution
  • High pressure is required

Each pump is fitted with a standard gearbox reduction system with a vertical mounted motor. The reduction gearbox is of a standard endless screw plus worm-wheel type, supported by bearing, fully lubricated in oil bath.

Stroke adjustment can be carried with the pump at rest or in operation and it can be manual or automatic through automatic actuator driven by 4-20 mA; different BUS; pneumatic. A built-in safety valve is installed in the hydraulic circuit, in order to protect the diaphragm against over pressure.

The peculiarity of this pump is the special sandwich diaphragm and the reliability of the diaphragm rupture detection system. Furthermore they comply with ATEX standard, therefore they can be installed in Hazardous area.

Technical data
Model Max capacity [lt/h] Max pressure [barg]
SD 125N 108 13,5
SD 175N 418 14
SD 250N 1068 7,2
APB SD 125N 60 40
APB SD 175N 247 40
APB SD 250N 556 20,7
Material execution
Execution Pump head Piston Valve (ball) Valve seats Diaphragm Piston gaskets Oil chamber
03 PVC S.S. 420 TEMP. PYREX PVC SANDWICH PTFE AU / NBR ALUMINUM
05 S.S. 316 S.S. 420 TEMP. S.S. 316 S.S. 316 SANDWICH PTFE AU / NBR ALUMINUM
29 S.S. 316 S.S. 420 TEMP. S.S. 316 S.S. 316 SANDWICH PTFE AU / NBR FE. 00
07 PP S.S. 420 TEMP. PYREX PP SANDWICH PTFE AU / NBR ALUMINUM

PP = polypropylene, S.S. 420 TEMP. = tempered stainless

  • Technical data

  • Material execution

Model Max capacity [lt/h] Max pressure [barg]
SD 125N 108 13,5
SD 175N 418 14
SD 250N 1068 7,2
APB SD 125N 60 40
APB SD 175N 247 40
APB SD 250N 556 20,7