SUN PPDBLNN High‑Pressure Relief Valve – Rugged Performance for Heavy Machinery
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The SUN PPDBLNN is a high‑pressure relief valve built for the toughest hydraulic environments, including mining and construction equipment. It offers exceptional durability with a hardened poppet and seat that resist erosion and wear. The valve provides stable pressure control at extreme operating conditions, and its large flow paths reduce pressure drop, enhancing overall system efficiency.
Sample:Contact us for free samples
SKU:XY-58-001116
Price:$42.25-$142.58
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Product Description
Engineered to withstand continuous high‑pressure operation, the PPDBLNN Relief valve features a robust poppet design that ensures reliable sealing and long life under cyclic loading. The valve body is manufactured from high‑strength alloy steel with a protective coating to resist corrosion and abrasion. Maximum pressure rating is 420 bar, and flow capacity is up to 80 L/min, suitable for main pump circuits and large actuators. The internal geometry is optimised to minimise flow forces, resulting in a flat pressure‑flow characteristic that maintains set pressure regardless of flow variations. Adjustment is accessible via a hex socket, with optional tamper‑proof caps available. The valve is compatible with most hydraulic fluids, including biodegradable oils, and functions across a wide temperature range. Common applications include hydraulic shovels, bulldozers, and drilling rigs where reliability is paramount. The PPDBLNN also offers optional soft‑shift features to reduce system shock during rapid pressure changes.
Product Complete Model No.
SUN PPDBLNN PRDBLSN RDFALBN RPECFAN RPGCKCN Original control Valve Relief valve
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