Airlec RYP Precision Pressure Reducing Valve Selection and Maintenance

Pipeline connection: Use thread sealant or PTFE tape to prevent debris from entering the valve body.

3.2 Wall mounted installation accessories

The original factory provides various installation accessories suitable for different scenarios:

3.2.1 Bracket Kit WYP

Material: Galvanized steel

Installation method: Remove the valve back cover, fix the bracket on the back, and then lock it with two accompanying screws.

Applicable scenario: It is necessary to fix the pressure reducing valve on the back panel of the control cabinet or the side of the machine frame.

3.2.2 Installation bracket WYL

Material: Galvanized steel

Installation method: It needs to be used in conjunction with a separate installation nut (RMY).

Features: The bracket is L-shaped and can flexibly adjust the height of the valve protrusion, suitable for areas with limited space.

3.2.3 Installing Nut RMY

Material: Plastic

Function: Used to lock the valve body during WYL bracket or panel installation.

Attention: This nut is not included with the valve and needs to be ordered separately.

3.2.4 Connection kits KPY-K and KPY-W

KPY-K: Coupling kit, used to connect two RYP valves side by side or combine them with filters and oil mist generators to form a gas source processing unit.

KPY-W: Wall mounted coupling kit, used to secure the entire air source processing unit to a wall or device.

Selection tip: If you want to build a complete air source treatment triad (filter+pressure reducing valve+oil mist device), you should prioritize using the KPY-K connection kit and confirm that the interface sizes of each unit are consistent.

3.3 Selection of Pressure Gauge

The RYP series does not come standard with pressure gauges, and MXA series pressure gauges need to be ordered separately. Technical points:

Model Interface Range Applicable Series

MXA-50-06-14 G1/4 0~6 bar Y1, Y2

MXA-50-10-14 G1/4 0~10 bar Y1, Y2

MXA-50-16-14 G1/4 0~16 bar Y1, Y2

MXA-40-06-18 G1/8 0~6 bar K, RD series

MXA-63-10-14 G1/4 0~10 bar Y3 series

Principles for selecting pressure gauges:

For constant loads, the normal operating range of the pressure gauge should be within 3/4 of the range (e.g. a 10 bar range gauge is used for pressures below 7.5 bar).

For alternating loads, it should not exceed 2/3 of the range.

Temperature drift: For every 10K deviation from 20 ° C, the accuracy changes by ± 0.4%. If the on-site temperature exceeds 50 ° C, consideration should be given to replacing the high-temperature pressure gauge.

Typical troubleshooting and maintenance

4.1 Export pressure cannot be established or the pressure is too low

Possible causes and solutions

Check if the upstream air source is turned on and if the pipeline is blocked when there is no pressure at the inlet

The adjustment knob is not unlocked. Pull up the rotation lock and rotate it counterclockwise to increase the set value

Filter blockage: Remove the air inlet connector and clean the internal filter (if any)

Replace the valve body or repair kit if the internal diaphragm of the valve ruptures (contact the original factory)

4.2 The outlet pressure continues to rise beyond the set value

Possible causes and solutions

The valve seat is not tightly sealed (with foreign objects), and the pressure is repeatedly adjusted to the maximum and then returned to zero, using high-speed airflow to blow away impurities; If invalid, dismantle and inspect

Check if the exhaust holes at the bottom or side of the valve body are blocked by paint or dust, and clean them smoothly

Replace the pressure regulating spring due to spring fracture or fatigue (requires a specialized repair kit)

4.3 Large pressure fluctuations (pointer oscillation)

Possible causes and solutions

Upstream pressure fluctuations are severe. Add a gas storage tank or stabilizing valve in front of the pressure reducing valve

Frequent start stop of downstream equipment leads to drastic changes in flow rate. Choose valves with higher flow rates (such as Y2 series) or add buffer gas tanks

The valve size is too small and needs to be recalculated based on the maximum air consumption. RYP-38/12 is selected

If the pressure gauge is damaged, turn off the pressure. Remove the pressure gauge and check if the pointer returns to zero; Replace MXA series new products

4.4 External air leakage

Solution to Leakage Location

Re wrap the raw tape around the pipe thread connection and use a suitable thread sealant

Check whether the copper gasket or O-ring of the pressure gauge interface is tightly pressed, and replace it if necessary

Replace the valve stem sealing ring between the valve body and the regulating rod (requires professional tools)

The pressure relief port continues to leak air and the internal valve seat is damaged. Replace the valve core component

4.5 Adjustment knob stuck or rotates heavily

Possible causes and solutions

Disassemble and clean the deformed and jammed internal spring, apply an appropriate amount of lubricating grease (be careful not to contaminate the air circuit)

The locking device is not fully released, and the rotation lock is fully pulled up before adjustment

Foreign objects enter the regulating mechanism. Remove the upper cover and clean the screw and spring seat