The Highlights below include features on recent products, solutions and news from Sun.
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Products » Cartridges » Pressure Control

Precise electro-proportional inverse relief valve
Jun 22, 2021
Smooth, precise control of fan speed with full-flow relief to protect the system if the fan motor stalls
Get the relief you need. Adjustable. Ventable. Blockable. FLeX-ible.
Oct 01, 2018
Sun introduces four new solenoid-operated, fully adjustable relief valves with ventable and blockable relief functions - a first for the industry. These RVC* valves add to the growing FLeX Series family.
CavitySaver multi-function valves deliver single-cartridge solutions
Mar 23, 2016
Reduce cavities, cost and maintenance in your hydraulic systems
Sun Cartridges with EPDM Seals
Dec 17, 2014
Cartridges for flame-retardant fluids in high-temperature applications
Pilot-Operated, Balanced Poppet Relief Valves
Jun 16, 2014
Pilot-operated, balanced poppet reliefs are fast-acting, low-leakage relief valves.
CE/TÜV Certified Pressure Relief Valves
May 01, 2014
Sun RDDT and RDFT cartridges are CE/TÜV certified relief valves in accordance with the Pressure Equipment Directive 97/23/EC (PED).
Tri-Grip Handknob Now Offered From Sun as a Standard Control Option
Dec 02, 2013
Factory Configured on Select Models
Pilot-Operated, Balanced Poppet, Anti Shock Reliefs
Jan 10, 2013
Anti-shock relief cartridges offer many benefits over traditional reliefs.
'Soft' Relief Eliminates Pressure Spikes
May 24, 2012
The soft relief valve not only limits maximum pressure but also the rate of pressure rise.
Sequence Valves Technical Tips
Mar 08, 2010
Sun publishes new Technical Tips on Sequence Valves.
Pressure Relief and Regulating Cartridge Valve Technical Tips
Mar 14, 2008
The second in a series of revised and updated learning tools about Sun products.
Sun Introduces 'Hybrid' Valves
Aug 07, 2002
These 'hybrid' valves incorporate a relief and a check function into a single cartridge.