ARI Armaturen TEMPTROL 774 EN - Manual (Page 7)

Rev. 0040702000 1011 Page 25
Operating and installation instructions
TEMPTROL
®
5.0 Installation
5.1 General notes on installation
The following items should be taken into account besides the general principles governing
installation work:
Refer to data sheet for necessary resp. relevant data for correct installation;
e.g. dimensions, connections, max. operating limits, etc.
- Planners / construction companies or operators are responsible for positioning and
installing products.
- The valves are designed for application, not influenced from weather.
- For application outside or in adverse environments like corrosion-promoting conditions
(sea water, chemical vapours, etc.), special constructions or protective measures are
recommended.
- Valve and controller/detector are delivered separately.
- Before installing the temperature regulator, rinse and clean the system otherwise the
seat / disc will be damaged and the control hole will be blocked.
- Centre packings between the flanges.
ATTENTION !
- Pressureless pipe system.
- Medium must be cool.
- Plant must be drained.
- Purge piping systems in case of caustic, inflammable, aggressive or toxic
media.
- Remove flange covers if present.
- The interior of valve and pipeline must be free from foreign particles.
- Note installation position with reference to flow, see mark on valve.
- Steam line systems should be designed to prevent water accumulation.
- Lay pipelines so that damaging transverse, bending and torsional forces are
avoided.
- Protect valves from dirt during construction work.
- Connection flanges must mate exactly.
- Connecting bolts for pipe flanges should be mounted preferably from the
counter flange side (hexagon nuts from the valve side).
At DN15-32: If valves should be mounted directly to valves, the upper flange
connecting bolts should be preferably executed with studs and hexagon nuts on
both sides.
- Valve mountings such as actuator, capillary tube, bonnets, temperature sensors
must not be exposed to external forces, e.g. they are not designed for use as
climbing aids, or as connecting points for lifting gear.
- Suitable materials handling and lifting equipment should be used.
Refer to data sheet for weights.
- If a temperature sensor is placed in a vessel with flammable or explosive media,
a sensor pocket have be provided.
- The actuator seals the valve interior only metallic;
not extra gasket is allowed!
- No sharp bending or unscrewing of capillary tubes is allowed; passes control
medium on hot surfaces it may ignite. Combustion danger!