Pressure Test; Insulation - Samson EB 2090 Mounting And Operation Instructions

Installation
5.4.2

Pressure test

Note
The plant operator is responsible for
performing the pressure test. SAMSON's
After-sales Service can support you to plan
and perform a pressure test for your plant.
NOTICE
!
Risk of regulator damage due to a sudden
pressure increase and resulting high flow
velocities.
Î Slowly open the shut-off valves.
During the pressure test, make sure the fol-
lowing conditions are met:
Î Do not allow the pressure to exceed the
1.5 times the pressure rating of the valve
body.
Î Make sure that the pressure rises simulta-
neously upstream and downstream of the
regulator to avoid damaging the valve.
5-6

5.5 Insulation

To insulate cold systems, we recommend first
filling the plant and carefully rinsing it. The
regulator must not yet be insulated at this
stage.
1. Start up the plant and adjust the limit
(see the 'Start-up' section).
2. Shut down the plant again and let it heat
up until the condensation water has
dried off.
3. Insulate the regulator and pipes convey-
ing the process medium using insulation
material with a water vapor barrier. The
insulation thickness depends on the me-
dium temperature and the ambient con-
ditions. 50 mm is a typical thickness.
EB 2090 EN