The VAG RIKO® Plunger Valve is a one-piece body, axial control valve engineered for precision regulation of flow and pressure in large-scale water pipelines. With a self-locking worm gear and cavitation-resistant design, the RIKO® ensures linear control with minimum vibration, even under high differential pressure. Its annular flow pattern and no-contact guides enhance performance and longevity.
DN 150–2200
PN 10 / 16 / 25 / 40 / 63 / 100
Cavitation-free annular flow
One-piece body construction
Quad-ring, axial sealing
Self-locking, with integrated position indicator
Per project or VAG technical standards
Manual handwheel or electric actuator
Non-contact guide system (no metal-to-metal friction)
Internal and external epoxy coating
Slotted piston option available
The RIKO® valve is widely used in:
Water treatment plants
Pumping stations
Dams and reservoirs
Penstock control in hydroelectric systems
Pressure management systems in long-distance transmission pipelines
Standard RIKO® – One-piece body with manual or electric actuation
High-Pressure RIKO® – Optimized for PN 63–100 or ANSI Class 300 service
Anti-Cavitation RIKO® – With slotted piston and special cylinder for cavitation-prone applications
Body: Ductile Iron EN-GJS-400-15 (GGG-40)
Piston: Stainless Steel 1.4301
Guides: Hard-faced bronze
Seals: EPDM or custom sealing material
Fasteners: Stainless Steel A2 or A4 depending on size
High-quality epoxy powder coating ensures long-term resistance to corrosion, making the valve suitable for potable and industrial water networks.
Suitable for clean water, raw water, and cooling water. Optional modifications available for bi-directional media and mildly aggressive flow.
Smooth linear regulation across full stroke
Vibration-free operation even under high-pressure gradients
Customizable flow control with slotted orifice cylinders
Isolation-friendly with actuator-driven precision
Long lifecycle with low maintenance requirements
Electric actuator for remote control
Slotted cylinder for anti-cavitation operation
Double piston design for ultra-fine control
Position indicators (mechanical or electrical)
Customized flange connections
From forging and casting to machining, assembly, and testing — every step is managed under one roof to ensure consistent quality, faster lead times, and zero compromise.
Get in touch with our team for additional information on product pricing, technical data, project support and more.
