5
TBVS4 User Manual
Rev.date: 20-09-2010
2 Installation
2.1 Points of attention
-The TBVS4 is suitable for gases and liquids.
Check the compatibility of the materials with the process fluid.
- Check if the connection is fitted far enough into the regulator and check for leakage across the
fitting.
- Avoid sealing compounds which harden, be careful with anaerobic (loctite type) compounds.
Particles of these compounds can run into the regulator and lock moving parts.
- Frequent assembly and disassembly of the in- and outlet fittings can damage the in- and outlet
thread of the regulator. Damaged threads can lead to galling.
2.2 Installation instructions
-Check the flow direction of the system and mount the TBVS4 in the right direction.
-The standard connection of the TBVS4 is ½" bspp female to ISO R/228/1.
-To get a proper seal SWAGELOK B.V. recommends the use of bonded seals.
-The regulator is to be mounted in the correct position – horizontally (= spring housing vertical).
-Check that the system pressure does not exceed the maximum allowed pressure of the regulator.
-Make sure the system is free of dirt.
-Check the flow direction.
-Turn set screw/knob fully counter clockwise.
3 Operation
-Slowly open the inlet valve.
-Crack the outlet valve open.
-Slowly turn setscrew clockwise until the inlet gauge in the system tells you that the set pressure
has been reached.
-Open outlet valve further.
4 Maintenance
All regulators require maintenance at scheduled intervals.
Annual maintenance is recommended under normal use.
4.1 Points of attention
-Vent the system pressure before removing the regulator from the line.
-Maintenance should be done in a clean workshop, not with the regulator still installed.
4.2 Disassembly
- Put the TBVS4 into a vice. Make sure it is secure.
- Turn the adjustment screw counter clockwise to remove the spring load.
- Remove spring housing nbr. 2 by loosening the bolts nbr. 21, 22 and 23.
- Remove the upper spring guide and spring housing.
- Loosen nut 20 and remove diaphragm plate 16.
- Loosen clamp ring nbr. 15.
- Screw the seat retainer nbr. 7 out, valve assembly and seat can now be removed.
Replace damaged parts and assemble in reversed manner.
4.3 Testing
It is recommended to test the repaired/maintained regulator in a test bench before re-installation in the
system.
Warranty Information
Swagelok products are backed by The Swagelok Limited Lifetime Warranty.
For a copy, visit swagelok.com or contact your authorized Swagelok representative.