HAMWORTHY HEATING LTD
1
WEYMOUTH
500001112/C
1.0 INTRODUCTION
The pressurisation units in the Hamworthy Weymouth range are designed to maintain the minimum pressure
requirement of modern low/medium temperature, hot water sealed systems. The pressurisation units also provide
replacement water for losses from the systems.
Note!
The pressurisation unit is not to be used for the initial filling of the system.
The Weymouth units are housed in a powder coated steel cabinet with removable cover. Housed in the cabinet is
a pump, connecting pipe-work and pressure switches. In the top of the cabinet is the header tank, with a float
valve. In the front of the cabinet is the systems pressure indication gauge.
The range has 2 models:-
1) The Standard with the following features:
2) The Advanced with
Pump
control
pressure
switch
All the features of the standard plus:
Non-return
valve
High/Low
pressure
switches
0 – 6 bar system pressure gauge
Isolating Valve (between tank and pump)
2.0 TECHNICAL DATA
The basic overall dimensions of both units are shown in below Figure 1, complete dimensions are shown in Figure
9 on sheet 7.
All screw threads used in the Weymouth units conform to
ISO 7/1
or
ISO 228/1
for pipe threads where applicable
&
ISO 262
for all general screw threads.
Performance and General Data is shown in Figure 2 (overleaf).
Figure 1 - Basic Overall Dimensions
STANDARD MODEL
ADVANCED MODEL
