Product Description
Houttuin 236 series Twin-Screw Pump -
Installation, Operation & Maintenance Manual
23
Nameplate field
Explanation
PUMP SIZE /TYPE
Size of the pump and any specific type identifiers
ITEM NO.
The pump BOM #
SERIAL NO.
The CIRCOR /Houttuin assigned serial number
ORDER
The customer order number or reference
DESIGN PRESSURE
Range of pressure the pump is designed for when considering both maximum and
minimum temperature
TEMPERATURE
Rated pump minimum and maximum temperature
SPEED
Rated pump speed range, in revolutions per minute
CAPACITY
The minimum and maximum pump flowrate when considering speed, temperature,
pressure and fluid viscosity.
POWER
The minimum and maximum pump power when considering speed, temperature,
pressure and fluid viscosity.
MAX. ALLOWABLE WORKING
PRESSURE
Highest allowable working pressure when considering both maximum and minimum
temperature
MAX. ALLOWABLE WORKING
TEMPERATRUE
Highest allowable working temperature at maximum allowable working pressure
CRITICAL SPEED
The speed at which the pump screws exhibit their 1
st
lateral natural frequency in
revolutions per minute
HYDRO TEST PRESSURE
The hydrostatic pressure at 38°C (100°F) of the casing and assembled pump
respectively
UNITS
The unit of measure utilized for the values of pressure, temperature and flow
ATEX nameplate
Figure 5: ATEX nameplate (generic example)
Nameplate field
Explanation
II
Group 2
2
Category 2
G/D
Pump can be used when gas and dust are present
T4
Temperature class
WARNING:
Use of equipment unsuitable for the environment can pose risks of ignition and/or explosion.
Ensure that the code classifications on the pump are compatible with the specific environment
in which the equipment is to be installed. If they are not compatible, do not operate the
equipment and contact a CIRCOR representative before proceeding.
