Spirax Sarco SP400 - Installation; Mounting the SP400 positioner - General information

IM-P343-37 CTLS Issue 4
11
SP400 Electropneumatic Smart Positioner
5.1 Mounting the SP400 positioner
General information
Preliminary check of valve and actuator assembly - A preliminary check should be carried out on the valve and
actuator assembly prior to mounting and commissioning the SP400 positioner to confirm smooth movement
of the stem. This can be performed by providing an air supply directly from a filter/regulator to the actuator.
The air supply pressure should be gradually increased to progressively move the stem through its full travel.
Any friction or jerky movement of the stem should be investigated prior to commissioning the SP400.
5.1.1
The SP400 is supplied with a NAMUR standard fixing kit for linear actuators (yoke or pillar) or with
a VDI/VDE 3845 compliant mounting kit for rotary actuators.
5.1.2
The SP400 has an enclosure rating of IP65 and should be installed in a location that will not exceed
its ambient temperature limits of -10 °C minimum and +80 °C maximum.
5.1.3
Before fitting and commissioning the SP400 positioner ensure that the valve and actuator are
correctly assembled. Refer to the valve and actuator Installation and Maintenance Instructions
for details.
5. Installation