Is the Hand Lever Operated Hydraulic Spool Valve YFM80 suitable for continuous use at temperatures from -20°C to +80°C and pressures up to 180–250 bar?

Yes. The Hand Lever Operated Hydraulic Spool Valve YFM80 is designed for continuous use across the specified range. Key points from the description: - Temperature range: rated to operate from −20°C to +80°C. - Pressure capability: NBR seals and construction withstand working pressures up to 250 bar; an integrated safety valve is preset at 180 bar and return pressure rating is up to 50 bar. - Construction and materials: cast iron body and hardened steel sliders provide durability and wear resistance for intensive, continuous operation. Given these specifications, the YFM80 is suitable for continuous operation at −20°C to +80°C and pressures in the 180–250 bar range, with the integrated 180 bar safety valve providing additional protection.

Can the Hand Lever Operated Hydraulic Spool Valve YFM80’s integrated safety valve (preset 180 bar) be adjusted or replaced to alter system pressure limits?

Hand Lever Operated Hydraulic Spool Valve YFM80’s integrated safety valve is factory-preset to 180 bar to provide reliable protection for the system. The product description does not state that this internal safety valve is adjustable in the field or intended to be replaced to change the pressure limit. Because the safety valve is integrated into the monoblock design, any modification or replacement could affect valve integrity, warranty and safe operation. If you need a different pressure limit, recommended options are: - Consult the manufacturer or an authorized service center to confirm whether an adjustable or alternate preset version exists or if retrofit/replacement is supported. - Fit an external safety/overpressure valve or pressure-limiting device upstream of the YFM80, sized and set by a qualified hydraulic engineer to meet system requirements. Do not attempt to modify the integrated safety valve without manufacturer guidance; improper alteration can create safety hazards and reduce component life.

Hand Lever Operated Hydraulic Spool Valve YFM80

All products, Directional control valves/

Additional information

Maximum operating temperature [°C]	80
Minimum operating temperature [°C]	-20

The YFM80 monoblock sliding valve is a robust and reliable solution for demanding hydraulic applications, operated by manual levers with centering springs to ensure precise and safe control. Engineered for use in cranes, lifts, construction and agricultural machinery, it combines durability with efficiency, offering smooth performance even under intensive workloads. The valve is equipped with an integrated safety valve preset at 180 bar, providing additional protection for the system, while standard type 1 sliders guarantee versatile operation. Built from high-quality cast iron for the body and hardened steel for the sliders, it ensures long-lasting resistance to wear and mechanical stress. NBR sealing delivers excellent reliability in various working conditions, withstanding pressures up to 250 bar and return pressures up to 50 bar. Designed to perform in temperatures ranging from -20°C to +80°C, the YFM80 valve is a dependable choice for professionals seeking maximum safety, durability, and efficiency in their hydraulic systems.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TL-YFM80-1-C-1	Hydraulic distributor YFM80, 1 section with relief valve	-	250	In stock	Enquiry
TL-YFM80-2-C-11	Hydraulic distributor YFM80, 2-section with relief valve	-	250	In stock	Enquiry
TL-YFM80-3-C-111	Hydraulic distributor YFM80, 3-section with relief valve	-	250	In stock	Enquiry
TL-YFM80-4-C-1111	Hydraulic distributor YFM80, 4-section with relief valve	-	250	In stock	Enquiry
TL-YFM80-5-C-11111	Hydraulic distributor YFM80, 5-section with relief valve	-	250	In stock	Enquiry
TL-YFM80-6-C-111111	Hydraulic distributor YFM80, 6-section with relief valve	-	250	In stock	Enquiry

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The YFM80 monoblock sliding valve is a robust and reliable solution for demanding hydraulic applications, operated by manual levers with centering springs to ensure precise and safe control. Engineered for use in cranes, lifts, construction and agricultural machinery, it combines durability with efficiency, offering smooth performance even under intensive workloads. The valve is equipped with an integrated safety valve preset at 180 bar, providing additional protection for the system, while standard type 1 sliders guarantee versatile operation. Built from high-quality cast iron for the body and hardened steel for the sliders, it ensures long-lasting resistance to wear and mechanical stress. NBR sealing delivers excellent reliability in various working conditions, withstanding pressures up to 250 bar and return pressures up to 50 bar. Designed to perform in temperatures ranging from -20°C to +80°C, the YFM80 valve is a dependable choice for professionals seeking maximum safety, durability, and efficiency in their hydraulic systems.