Complete Rock Valve Components
Complete rock valve components for concrete pumps include all parts of the flow control valve, ensuring uniform concrete transfer under high pressure. The main valve body is made from wear-resistant alloy steel with induction heat treatment, achieving a surface hardness of 58 to 62 HRC. Wear plates and sealing rings are manufactured from pressure- and abrasion-resistant polyurethane or brass. Pistons and bushings use anti-friction alloys with high surface hardness to extend component life.
Structurally, the components include the valve body, wear plates, sealing rings, pistons, bushings, and high-pressure washers. Parts are connected with high-strength bolts and precise tolerances to minimize leakage and movement. Multi-layer sealing kits prevent concrete and hydraulic oil leakage. Component design complies with ISO 21573 and technical specifications of top global brands such as Schwing and Putzmeister, ensuring durability and consistent performance.
