Can the Pressure relief valve in the hydraulic system to allow connection of TEMA quick couplings be operated at temperatures up to +90Â°C and with NBR seals?

Yes. The Pressure relief valve in the hydraulic system to allow connection of TEMA quick couplings is specified for operation with NBR seals at temperatures up to +90Â°C. The valve description lists NBR sealing and an operating temperature up to +90Â°C, so it is suitable for use under those conditions. Ensure system fluids and any prolonged exposure conditions are compatible with NBR and the valve materials (galvanized steel body, brass valve) to maintain seal life and performance.

Does the Pressure relief valve in the hydraulic system to allow connection of TEMA quick couplings require specific maintenance intervals?

Pressure relief valve in the hydraulic system to allow connection of TEMA quick couplings: Yes - specific maintenance intervals are recommended. Because the valve is a safety/component part (galvanized steel body, brass valve, NBR seals) exposed to pressure cycles and up to +90Â°C, inspect and maintain it at regular intervals: visual check and leak test monthly, seal and coupling surface inspection every 3â6 months, and full functional test (operation, spring/seat wear, seal replacement) annually or per operating hours if specified by system manufacturer. Immediate inspection/maintenance is required after any abnormal pressure event or contamination. Adjust intervals for severe duty, contamination, or higher temperatures. Document all checks and replacements.

How does the Pressure relief valve in the hydraulic system to allow connection of TEMA quick couplings operate when returning excess oil to the tank?

The Pressure relief valve in the hydraulic system to allow connection of TEMA quick couplings operates as a manual, in-line safety device installed between the section of the hydraulic circuit fitted with TEMA quick couplings and the pressure supply side. When the system contains excess pressure or accumulated oil pressure that prevents safe disconnection/connection of the quick couplings, the operator manually actuates the valve. Opening the valve provides a controlled return path for the excess hydraulic oil back to the tank, reducing the line pressure to a safe level. Constructed with a galvanized steel body and a brass internal valve, and sealed with NBR, the unit withstands operating temperatures up to +90Â°C. Once the excess oil has been bled off and pressure has dropped, the quick couplings can be connected safely. The valve thus prevents pressure lock at the coupling interface by releasing trapped fluid to the tank before coupling operations.

A pressure relief valve in the hydraulic system to enable the connection of TEMA quick couplings

All products, Hydraulic quick couplings/

Additional information

Material	IS – other metal (alloy)

A manual valve that allows excess oil in the installation to be released back to the tank and the built-up oil pressure in the system to be reduced. Installed between the part of the system fitted with quick couplings and the pressurized supply part. After releasing the excess hydraulic oil, connecting the quick couplings becomes possible. Material: galvanized steel (body), brass (valve). Sealing: NBR. Operating temperature: up to +90°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TA-V-TA100	Valve relief TEMA DN25 male/female 1"	25	250	In stock	Enquiry
TA-V-TA38	Valve relief TEMA DN10 male/female 3/8"	10	250	In stock	Enquiry
TA-V-TA50	Valve relief TEMA DN13 male/female 1/2"	12	250	In stock	Enquiry
TA-V-TA75	Valve relief TEMA DN20 male/female 3/4"	20	250	In stock	Enquiry

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A manual valve that allows excess oil in the installation to be released back to the tank and the built-up oil pressure in the system to be reduced. Installed between the part of the system fitted with quick couplings and the pressurized supply part. After releasing the excess hydraulic oil, connecting the quick couplings becomes possible. Material: galvanized steel (body), brass (valve). Sealing: NBR. Operating temperature: up to +90°C.