Introduction; Benefits; Application Examples - Danfoss APP W HC Series Operation Manual

Data sheet | APP W HC 15 -30
1.

Introduction

2.

Benefits

3.

Application examples

This data sheet is valid for APP W HC pumps .
The Danfoss range of APP W HC high-pressure
pumps is designed according to EN 809 for use in
water applications like:
• High pressure RO
• Zero liquid discharge (ZLD)
• Minimal liquid discharge (MLD)
•
Danfoss APP pumps are positive displacement
pumps with axial pistons that move a fixed
amount of water in each cycle .
1: Shaft sealing
2: Port flange
3: Bleeding plug
4: Retainer plate
5: Piston/shoe
6: Valve plate
7: Swash plate
8: Cylinder barrel
9: Springs
10: Port plate
11: Flushing valve
(not available on
APP 5 . 1 -10 .2)
12: Housing
13: Tail stock screws
14: Drain plug
• Zero risk of lubricant contamination:
- Oil lubricants are replaced with the
pumped medium, water, so there is no
contamination risk from the pump .
• Low maintenance costs:
- Efficient design and all-stainless steel
construction ensure exceptionally long
life . When Danfoss specifications are
met, service inspections of 8,000 hours
can be expected . Service is easy, and
can be carried out on-site due to the
simple design and few parts .
• Low energy costs:
- The highly efficient axial piston design
provides the lowest energy
consumption of any comparable pump
on the market .
• Easy installation:
- The most compact and lightest design
available .
- The pump can be installed vertically
and horizontally .
- No pulsation dampeners necessary due
to extremely low pressure pulsation .
Danfoss APP pumps are designed or use in a
broad range of plants around the world for:
180R9410 | AQ282628894589en-000801 | IOM APP W HC 15-30 Pumps | 01.2022
Flow is propor tional to the number of input shaft
revolutions (rpm) . Unlike centrifugal pumps, they
produce
the same flow at a given speed no matter what
the discharge pressure .
Below sectional drawing is an example of an
APP pump . The sectional drawing for the specific
pump sizes are to be found in the pump
instruction .
- Powered directly by electric motors or
combustion engines (with special
coupling) .
- All pumps are supplied with an
integrated flushing valve that allows the
fluid to flow from inlet to the outlet,
when the pump is not running .
• High reliability:
- All parts are made of high corrosion
resistant materials e .g . Duplex
(EN1 .4462/ UNS S31803) and
Super Duplex (EN1 .4410/UNS S32750)
stainless steel and carbon reinforced
PEEK .
• Certified quality:
- Positive Material Identification (PMI)
report available on request .
- IATF 16949, ISO 9001, ISO 14001 .
• High pressure reverse osmosis
• Zero liquid discharge (ZLD)
• Minimal liquid discharge (MLD)
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