Is the 3-Way Normally Open D3V Switching Valve suitable for use in systems operating continuously at 90°C?

3-Way Normally Open D3V Switching Valve Format is suitable for use in systems operating continuously at 90°C. Its specified operating temperature range is -20°C to +90°C, so continuous operation at the upper limit is within the manufacturer's stated capability. However, operating continuously at the maximum rated temperature can reduce safety margins and may accelerate wear of elastomeric seals (NBR) and other components; for critical or long-life applications consider verifying compatibility of all system fluids and materials, performing periodic inspections, or selecting a valve with a higher temperature rating if additional margin is required.

Can the 3-Way Normally Open D3V Switching Valve be used with hydraulic fluids that are incompatible with NBR seals?

3-Way Normally Open D3V Switching Valve Format: No — not recommended. The valve as described uses NBR (nitrile) seals, which are incompatible with certain hydraulic fluids (e.g., phosphate esters, some synthetic esters, ketones, aromatic hydrocarbons, and certain aggressive additives). Using incompatible fluids can cause NBR swelling, hardening, cracking or loss of sealing properties, leading to leaks, reduced performance and possible failure. If your hydraulic fluid is incompatible with NBR, choose one of the following: - Replace seals with a compatible elastomer (e.g., FKM/Viton, EPDM, or PTFE) rated for your fluid and operating temperature (-20°C to +90°C or per alternative material spec). - Confirm compatibility with the fluid manufacturer and the valve supplier before installation. - Consider a valve body and stem materials and temperatures—while cast iron and hardened steel are robust, compatibility of all wetted parts must be verified. Summary: Do not use the 3-Way Normally Open D3V Switching Valve Format with fluids incompatible with NBR unless seals are changed to a compatible material and compatibility is confirmed.

3-Way Normally Open D3V Switching Valve

All products, Directional control valves/

Additional information

Material	CS – steel (cast iron)
Standard length [m]	50/ 100

The three-way switching valve, designed in a normally open configuration, ensures precise control of hydraulic fluid flow direction within demanding systems. Operated effortlessly through a manual lever, it offers reliability and intuitive handling, making it an ideal solution for applications requiring quick and secure adjustments. The robust cast iron body guarantees durability and resistance to mechanical stress, while the hardened steel stem enhances longevity and operational stability even under intensive use. High-quality NBR sealing provides excellent protection against leaks, ensuring consistent performance and maintaining system efficiency. With an operating temperature range from -20°C to +90°C, this valve delivers dependable functionality in diverse working environments, from cold storage facilities to high-temperature industrial processes. Its solid construction, ease of use, and proven sealing technology make it a trusted component for professionals seeking efficiency, safety, and long-term reliability in hydraulic installations.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
DC-D3V-04	3-way switching valve GW 1/4", normally open	-	300	In stock	Enquiry
DC-D3V-06	3-way switching valve GW 3/8", normally open	-	250	In stock	Enquiry
DC-D3V-08	3-way switching valve GW 1/2", normally open	-	250	In stock	Enquiry
DC-D3V-12	3-way switching valve GW 3/4", normally open	-	250	In stock	Enquiry
DC-D3V-16	3-way switching valve GW 1", normally open	-	250	In stock	Enquiry

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The three-way switching valve, designed in a normally open configuration, ensures precise control of hydraulic fluid flow direction within demanding systems. Operated effortlessly through a manual lever, it offers reliability and intuitive handling, making it an ideal solution for applications requiring quick and secure adjustments. The robust cast iron body guarantees durability and resistance to mechanical stress, while the hardened steel stem enhances longevity and operational stability even under intensive use. High-quality NBR sealing provides excellent protection against leaks, ensuring consistent performance and maintaining system efficiency. With an operating temperature range from -20°C to +90°C, this valve delivers dependable functionality in diverse working environments, from cold storage facilities to high-temperature industrial processes. Its solid construction, ease of use, and proven sealing technology make it a trusted component for professionals seeking efficiency, safety, and long-term reliability in hydraulic installations.