MCB(DNS) Series Close Coupled Motor Pumps are categorized as Cooling Tower Pumps and comply with DIN 24255 (EN 733) standard. Sizes range from 32-125 to 300-400. Additional applications include use as cooling water pumps, pressure boosting pumps, de-watering pumps, fire protection pumps and plumbing pumps.

DNS Series Motor Pumps have design features such as:

STANDARDISED DESIGN

• The DNS Series are close coupled versions of the widely recognized DN range which is designed and manufactured to the international Standard DIN 24255

OPERATING TEMPERATURES

• With standard Mechanical Seal: minus20^oC to 100^oC.
• Mechanical Seals are available for applications outside these limits.

OPERATING PRESSURES

• Maximum operating pressure:  1600kPa.
• Maximum test pressure up to 2100kPa
• Maximum pressure will vary depending on particular pump model-higher rating available on applications

BACK PULL-OUT FACILITY

• All pumps incorporate the “BACK PULL-OUT” facility allowing the removal of the complete rotating element without disturbing the pipe woke. This feature enables quick and simple maintenance to take place.

INTERCHANGEABILITY

• Many of the components are interchangeable resulting in a reduction in spares requirements and an initial cost saving.

MOTOR OPTIONS

• The design of the range means that readily available Standard electric motors are used.
• Alternatively, a motor to suit your particular specifications can be fitted where special protection classes and enclosures are required or to suit a certain power supply (i e. Weatherproof, flameproof, 60HZ)

MAXIMUM SPEED

• Either50HZ (1450rpm/2900rpm) or 60HZ (1750/3500rpm) speed motors can be supplied with impellers reduced to comply with the higher speeds.

ADDITIONAL INFORMATION

1. Flanged Cast Iron casing
2. Mechanical seal fitted on stainless steel shaft sleeve
3. The back pull out feature of this pump allows removed of the motor, support frame and impeller, without disturbing the suction and delivery pipe work or the casing
4. Mechanical seal complies to the VDMA International Dimension Standard
5. Double shrouded hydraulically balanced impeller with rear balancing vanes on smaller sizes, and balance holes with replaceable wear rings on large sizes.
6. Every casing is fitted with a replaceable wear ring.
7. Use of standard motors allows for easy replacement.

MATERIAL OPTIONS