Troubleshooting
Problem: The outlet pressure creeps up without turning the adjustment knob.
Cause: A damaged valve and/or seat.
Solution: Replace the valve and/or the seat.
Problem: Constant leak through the relief hole at the side of the spring housing.
Cause: A damaged diaphragm.
Solution: Replace the diaphragm.
Problem: The required outlet pressure can not be reached.
Cause: The inlet pressure is not high enough.
Solution: Make sure that the inlet pressure is sufficient.
Problem: The outlet pressure rises too much when going from a dynamic to a static situation.
Cause: There is too much flow in the dynamic situation.
Solution: A larger regulator is required.
Check the specific application data with the flow curves in our product literature, if available.
Problem: The outlet pressure does not drop if the adjustment knob is turned counterclockwise.
Cause: The regulator is non-venting.
Solution: A shut-off valve in the outlet line must be opened to reduce the outlet pressure.
Problem: The outlet pressure has changed without turning the adjustment knob.
Cause: Changes to the inlet pressure will result in changes to the outlet pressure.
Solution: Maintain a constant inlet pressure to the regulator. See section “operation” about dependency.
Problem: Controlled pressure drops off sharply even when the flow is within regulator capabilities.
Cause: The regulator filter element or system filter element is clogged.
Solution: Replace the filter element.
Warranty Information
Swagelok products are backed by The Swagelok Limited Lifetime Warranty.
For a copy, visit swagelok.com or contact your authorized Swagelok representative.
For additional information, see www.swagelok.com.
Swagelok, Snoop – Swagelok Company
© 2011-2021 Swagelok Company
MS-CRD-0173, RevA, October 2021
WARNING:
Do not mix/interchange Swagelok products or components
not governed by industrial design standards, including
Swagelok tube fitting end connections, with those of other
