The Complete Grout Swivel is a precision swivel joint engineered for fluid-flow systems in grouting, cementitious injection, and pressure grout applications. It allows fluid or grout to rotate freely while the inlet/outlet remains stationary, reducing hose torque, eliminating kinks and improving delivery reliability in high-pressure environments.
Design:
- The swivel is built with a heavy-duty bearing assembly and internal fluid passages designed for grout, cementitious slurries or high-viscosity injection fluids.
- Sealing and bearing design provides low-leak, high-life operation under cyclic rotation, pressured flow and abrasive service.
- The design usually includes a stator housing and rotating shaft section, with internal seals, anti-extrusion rings (for heavy solids), and hardened bearing surfaces to cope with abrasive entrained particles in grout streams. For example, generic heavy duty swivel joints feature heat-treated material, dual-purpose packing composed of an anti-extrusion ring and precision hardened bearing surfaces as noted in swivel joint manufacturer specs.
- Flow path is smooth-bore to minimize pressure drop. Seal/extrusion zones are minimized and grease/zerk lubrication ports are often provided for maintenance.
Applications:The Complete Grout Swivel is suitable for a variety of demanding fluid-flow or grout-injection applications.
- Grout pumps for structural repair, underpinning or void-filling: swivel mounted at the end of the manifold or hose to allow articulation while pumping grout.
- Cementitious or epoxy injection systems for columns, base plates, anchor bolts, where high-pressure grout must be delivered through a rotating hose connection.
- Shotcrete or sprayed grout systems where the hose/nozzle needs to rotate freely while remaining connected to the machine, avoiding hose twist and improving operator ergonomics.
- Any application where highpressure or highvolume grout (cement, epoxy, slurry with aggregate) flows and articulation is required the swivel absorbs the rotational stress rather than the hose/hose fitting.
- Rental or mobile grout systems where quick setup and maintenance are essential the complete kit means minimal on-site assembly, fewer hose restrictions, and reduced downtime.
Materials:A robust Complete Grout Swivel will typically incorporate the following materials and features:
- Housing / body: Forged or machined carbon steel or alloy steel (often heat-treated) to withstand high pressures and abrasive flow.
- Shaft / bore: Hardened steel (often chromium or nitrided) with smooth internal bore finish to minimize friction, wear, pressure drop and leakage.
- Bearings: Heavy-duty bearings (ball or roller) mounted between housing and rotating element to carry radial and thrust loads from hose torque.
- Seals / packing: Dual-purpose packing with anti-extrusion rings (to prevent seal extrusion under pressure) and active seal elements. The use of anti-extrusion rings is noted in heavy-duty swivel joint specs.
- Grease lubrication ports (zerks): For periodic maintenance to extend bearing life and prevent ingress of abrasive grit.
- End connections: Threaded or flanged ports (NPT, BSP, welded, or flange) compatible with the pump/hose assembly.
- Flow path finish: Smooth bore internal surfaces to reduce wear from particulates in grout.
- Optionally corrosion-resistant materials (for marine or chemical grout systems) like stainless steel, PTFE seals, etc.
Configurations:Thread: R32, R38 or T38




