Edwards STP-iX455, Instruction Manual

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STP-iX455/iXL455 Series Instruction Manual
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4.3.3 How to Secure the STP Pump
◇
The STP pump is provided with a high-speed rotor. The worst-case failure may
result in a jump in rotational torque leading to personal injury or peripheral
equipment damage.
The method of securing the STP pump will depend on the installation
requirements. Secure the STP pump to the vacuum equipment as follows:
◇ The generated torque during a pump failure is called "Destructive torque".
Design and secure the mounting for the STP pump so that it can withstand this
destructive torque. Refer to Table 4.3 for destructive torque values.
◇
Refer to Table 4.2 for tightening torque of the bolt.
Table 4.2 Tightening Torque of Bolt
Size of bolt Tightening torque of bolt (Nm)
M8 12
M10 24
M12 42
◇ When securing on the pump base side or using any securing method other than
that specified in this manual, contact Edwards.
Damper
Yes
No
With bolts
With Claw Clamps
Secure the inlet port
Refer to
"1) When securing the
inlet port with bolts"
Refer to
"2) When securing
the inlet port flange with claw
clamps"
Refer to
"3) When installing
the damper in the inlet port
flange"