screw-in valves for
maximum reliability
SUN screw-in valves and standard housings
Since our foundation in 1992, we have been an official sales partner of the US valve manufacturer Sun Hydraulik.
Sun Hydraulik is a leading manufacturer of high-quality screw-in valves. These are used in mobile and industrial hydraulics. The valves are available in up to 5 sizes and can be used up to operating pressures of 420 bar in some cases. Due to the SUN-specific floating design, small alignment errors in the bore, or increased tightening torques, do not affect the function.
In addition, there is a comprehensive program of piping housings, intermediate plates in NG6 to NG25 and various flange housings.
These are available in aluminum (up to 210 bar), cast steel and partly even stainless steel (up to 350 bar).
SUN offers various surface treatments for the housings. Aluminum housings can be anodized upon request, and the extruded housings can be burnished, galvanized, or zinc-nickel coated.
In addition, completely assembled modules with valves in the housing can also be ordered.
Why screw-in valves from SUN Hydraulik?
High Reliability and Service Life
Due to the heat-treated functional parts inside the screw-in valves, they achieve high wear resistance, impact strength and fatigue strength. – Ergo, long service life
Floating Storage
A decisive advantage lies in the floating sleeve. This ensures that the moving components manufactured with tight tolerances can move freely.
Easy Service
SUN Hydraulik screw-in valves can be screwed out of their mounting bores for cleaning or inspection purposes without changing their setting value or damaging the piping.
Pressure Relief Valves
Pressure Sequence Valves
Pressure Control Valves
Check Valves – Unlockable
Counterbalance Valves
Check Valves
Flow Control Valves
3-Way Priority Flow Control Valves
Flow Dividers & Flow Divider/Combiners
2-Way Logic Elements
Directional Control Valves
Solenoid-operated Directional Control Valves
Pilot Valves
Shuttle Valves
Special Valves
Hybrid Pressure Relief Valves
The B&B certification
The quality system of the manufacturing facilities of the SUN Hydraulik Group is certified according to ISO 9001, among others.
Screw-in valves from SUN Hydraulik
Each SUN screw-in valve is a complete unit in an advantageous, compact and lightweight design. Depending on the design and function, the screw-in valves are suitable for pressures up to 350 bar, in some cases even up to 420 bar. There are 5 sizes with a nominal flow rate of up to 480 l/min, and for some of the valves even up to 760 l/min.
The internal parts made of high-quality, hardened steel guarantee a reliable mode of operation with a long service life. The external parts are galvanized and thus offer effective corrosion protection.
A significant advantage of the SUN Hydraulik screw-in valves is the “floating” design, which prevents the internal parts from jamming. Each individual SUN screw-in valve is subjected to a functional test on high-precision and powerful test benches before delivery.