User's Manual

49
Vent Kit:
The kit is comprised of a ¼” BSP tee piece with a pipe nut / fitting and a copper vent tube. As
above after the ½” x ¼” BSP fitting is installed, this allows the tee piece to be fitted in a way
which allows the VFOCS switch to be fitted direct to it. This leaves an additional port to
accommodate the ¼” BSP pipe fitting, which once fitted will allow the vent tube to be secured by
a pipe nut and collar taking care not to over-tighten as above!
When fitting the pipe unions it is advisable to use PTFE tape to improve sealing, also two
wrenches must be used when tightening multiple fittings, this is important particularly when
tightening onto the filler/breather tube as it can strain & cause damage to the tube and its joints!
5.1 Accessories and Options
There are a number of accessories available to complement the VERDER hose pumps, all of
which are available through your local VERDER distributor:
Pulsation Dampener
A pulsing delivery is often common with hose pumps, which can lead to increased pipe losses or
heavy pulsation in the pipeline; pulsation is equally undesirable for the successful execution of
the process
A flexible bellow is installed and impinged on one side by compressed air or gas. Should
pulsation occur, the bellows increase their capacity and compress the air or gas. Hence the
peak pressure is not diverted into the pipeline or system, but is absorbed by the dampener.
There are three different types of dampener available:
• Manual adjustment dampener
• Automatically adjusted dampener
• Preset dampener (mostly used for high pressures where a normal air network would fail to
deliver sufficient pressure)
• Flexible Hose
Your VERDER distributor will be able to advise you further by referring to the separate sales
literature available. It should be noted that whilst pulsation dampers will reduce the size of the
pulse (typically by approx. 90%), they will therefore not totally eliminate pulsation.
Hygienic Hose Connections
A range of stainless steel connections is available to replace the port flange; fittings include a Tri
Clamp, RJT ; IDF and DIN 11851. In addition port flanges are available in stainless steel to suit
DIN, ANSI and JIS with stainless steel, polypropylene or PVDF inserts
Cleaning in Place
The specially developed VERDER Hygienic Pump offers full cleaning in place (CIP) and is ideal
for applications in the food industry, where the elimination of bacterial growth is essential - details
of this pump are available from your local VERDER distributor
Special Coatings
Pump components can be coated in a variety of specialist materials to offer higher levels of
chemical resistance or wear. Please ask your VERDER distributor for details on an individual
basis