Can the Sequential valve, type VS30 be set above 260 bar, and what are the risks if the aluminum body is exposed to higher pressure?

Yes . the Sequential valve, type VS30 can be adjusted using the screw (Allen key) to change its opening pressure, but you must not set it above 260 bar. 260 bar is the maximum operating pressure for the aluminum body; exceeding this limit risks mechanical failure of the valve housing. Risks if the aluminum body is exposed to higher pressure: - Structural failure: cracking or rupture of the aluminum body, causing sudden loss of hydraulic containment. - Leakage: permanent deformation around seals and joints (NBR) or threads, leading to external leaks and loss of system pressure. - Safety hazard: high-pressure bursts can eject components or fluid, endangering personnel and equipment. - Valve malfunction: internal parts (galvanized steel valve) may be forced beyond design limits, causing sticking, incorrect sequencing, or uncontrolled actuator movement. - Reduced lifetime: cyclic overpressure accelerates fatigue and corrosion, compromising long-term reliability. Mitigation: respect the 260 bar limit, use pressure relief/protection devices, and if higher pressures are required, select a valve with a metal body rated for those pressures.

How should the Sequential valve, type VS30 be mounted and adjusted to ensure safe operation within the 260 bar limit?

Mounting and adjustment of the Sequential valve, type VS30: - Mount the Sequential valve, type VS30 between the power source (1) and the actuator (2) that must be supplied second. Use the builtâin mounting holes and secure the valve to a rigid, vibrationâfree surface. - Connect hydraulic lines with correct port orientation and clean fittings to avoid contamination. Ensure seals (NBR) and threads are undamaged. - Adjust opening pressure with an Allen key on the adjustment screw; lock setting with the locking nut after adjustment. - Do not set the opening pressure above 260 bar - the aluminum bodyâs maximum operating pressure. For safe operation stay within the valveâs operating temperature range (â20Â°C to +100Â°C). - After adjustment, perform a controlled pressure test and check for leaks and correct sequencing before full operation.

What maintenance checks are recommended for the Sequential valve, type VS30 to ensure safe long-term operation?

Recommended maintenance checks for the Sequential valve, type VS30 to ensure safe long-term operation: 1. Visual inspection - Check the aluminum body and mounting holes for cracks, deformation or corrosion. - Inspect galvanized steel parts for rust, wear or damage. - Verify sealing surfaces and external O-rings (NBR) for cuts, hardening or swelling. 2. Leak test - Perform pressure hold and visual leak tests at operating pressures typical for the system. - Never exceed 260 bar during testing because of the aluminum body limit. 3. Functional pressure check - Verify the valve opens at the set sequence pressure by cycling the actuators. - Use a calibrated pressure gauge upstream and downstream to confirm opening pressure. - If adjustment is required, use the Allen key screw and re-lock the locking nut; recheck setting after locking. 4. Adjustment hardware and locking - Inspect the adjustment screw and locking nut for play, corrosion or damage. - Ensure the locking nut is secure after any pressure setting change. 5. Seal and internal condition - Periodically replace NBR seals according to operating hours or if leakage/softening occurs. - If contamination or erratic operation is detected, consider disassembly and inspection of the internal valve (galvanized steel component) for wear, scoring or clogging. 6. Cleanliness and filtration - Ensure hydraulic fluid cleanliness meets manufacturer/system specs to prevent valve sticking and wear. - Check and service system filters and strainers regularly. 7. Temperature and material check - Confirm operating temperatures remain within -20Â°C to +100Â°C; prolonged exposure outside this range can degrade NBR seals and affect aluminum strength. 8. Mounting and alignment - Verify secure mounting and correct alignment to avoid mechanical stress on the valve body and connections. - Check torque of mounting fasteners per system recommendations. 9. Documentation and intervals - Record inspections, pressure settings and any seal replacements. - Recommended inspection frequency: visual and leak checks monthly, functional/pressure verification and seal inspection every 6â12 months or sooner under heavy use. Safety note: Always depressurize the hydraulic system and follow lockout/tagout procedures before performing any maintenance.

Sequential valve, type VS30

All products, Other high-pressure valves/

Additional information

Material	AL – aluminum

VS30 valves are used in hydraulic systems as a component to establish the supply sequence of several actuators connected to a single power source. In a system with two actuators, the valve is installed between the power source (1) and the actuator (2) that is to be supplied second. The opening pressure value is set using a screw (adjustment with an Allen key, locked with a locking nut). The valves are equipped with mounting holes. Special attention should be paid not to set the pressure value higher than 260 bar (maximum operating pressure for the aluminum body). Material: aluminum (body), galvanized steel (valve). Sealing: NBR. Operating temperature: from -20°C to +100°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
DC-VS30-00-06	Sequential valve VS30, GW 3/8" BSP	-	260	In stock	Enquiry
DC-VS30-00-08	Sequential valve VS30, GW 1/2" BSP	-	260	In stock	Enquiry
DC-VS30-05-06	Sequential valve VS30, GW 3/8" BSP	-	260	In stock	Enquiry
DC-VS30-05-08	Sequential valve VS30, GW 1/2" BSP	-	260	In stock	Enquiry
DC-VS30-10-06	Sequential valve VS30, GW 3/8" BSP	-	260	In stock	Enquiry
DC-VS30-10-08	VS30 sequential valve, 1/2" BSP thread	-	260	In stock	Enquiry

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VS30 valves are used in hydraulic systems as a component to establish the supply sequence of several actuators connected to a single power source. In a system with two actuators, the valve is installed between the power source (1) and the actuator (2) that is to be supplied second. The opening pressure value is set using a screw (adjustment with an Allen key, locked with a locking nut). The valves are equipped with mounting holes. Special attention should be paid not to set the pressure value higher than 260 bar (maximum operating pressure for the aluminum body). Material: aluminum (body), galvanized steel (valve). Sealing: NBR. Operating temperature: from -20°C to +100°C.