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What are single ended pumps and when should they be used?
Single Ended Pumps operate on one end only as distinct from Twin Ended
Pumps which are designed to pump hot and cold water simultaneously.
Typically, Single Ended Pumps are
installed in applications where it is required to boost pressure and flow of
hot and/or cold separately from normal domestic tank fed supplies to suitable
terminal appliances/outlets in the house. (See Fig1. below)
Fig 1 Typical Hot
Installation |
(Click to
enlarge) 
Fig 2 Pumping Blended
Outlet |
The Techflow Solution
Techflow Products manufacture 3 sizes of single ended pumps :-
Each has been designed to satisfy
different applications. See examples below:
QT45SE-2
- Pumping hot or cold water in a
small house or flat where a relatively small increase in supply pressure and
flow is required and any showering requirement does not involve pulse or
champagne handset mode
- Installed between a valve and
shower outlet to pump blended water this pump is ideal for pressurising non
restrictive type shower valves with single function handsets
- Electric Showers - Where the
normal mains cold supply to the household is inadequate to provide sufficient
water pressure to operate an electric shower properly, the problem can be
resolved using a QT45SE to pump cold water from the cold water storage tank
giving the shower a high flow contact pressure supply
QT80SE-2
- Installed between a shower outlet
to pump blended water this pump is ideal for pressurising non restrictive type
shower valves with single
or two function handsets
- Pumping hot or cold water in a
medium size house where a relatively moderate increase in supply pressure and
flow is required and any showering requirement does not include champagne
shower mode
QT120SE-2
- Installed between a valve and
shower outlet to pump blended water this pump is ideal for pressurising non
restrictive type shower valves with handsets that incorporate functions that
include "pulse and champagne"
- Pumping hot or cold water in a
large house where a significant increase in supply pressure and flow is
required and showering requirements involve pulse or champagne
All three Single Ended Pumps are
available for Negative head applications (See Data Sheet
1) in fully automatic (AS), MSP or MSA variants. The family of pumps are
all continuously rated, making them ideal when used in the AS mode for whole
house pumping and can be purchased in pairs complete with the AS pump
controllers as a "Whole House Pack".
It is recommended that a Whole House
Pack is purchased if it is required to pump more than 6 terminal appliances.
(See Data Sheet 4)
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DIM.
REF. |
QT45SE-2 |
QT80SE-2 |
QT120SE-2 |
| A |
282 |
305 |
340 |
| B |
38 |
60 |
85 |
| C |
220 |
220 |
220 |
| WIDTH |
130 |
130 |
130 |
ALL DIMENSIONS ARE IN
MILLIMETRES |
SP60
- Manufactured in the U.K, the TP60 features
a powerful British made induction motor for long life. The superior
design incorporates high specification scale-resistant polymers and
low friction seals, ensuring trouble-free life.
SP60MSP
- Designed to delight developers, please
plumbers and cheer customers, the TP60 can be installed using 15mm pipework.
This increased flexibility offers considerable potential savings in
time and materials costs, where existing hot and cold supply pipework
is utilised.
SP60MSA
- Each pump is supplied
with push-on 15mm connectors and comprehensive installation instructions.
The TP60 is also available in a Negative Head version and in Single-Ended
form.
TURBO 4
- Like all Techflow
Pumps, Turbo units use the highest quality UK-manufactured induction
motors for long, maintenance free life. Chambers and impellers are manufactured
from WRC - approved brass, and the seals fabricated using the latest
Silicon Carbide technology. All are continuously rated.
TURBO 6
- Techflow Turbo
Pumps come with a two year warranty, extendible to three years, free-of-charge,
on registration.
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