DIAPHRAGM TYPE HYDRAULIC CONTROL VALVE

Integrated Solutions for Automatic Pipeline Control

IO Valves Hydraulic Control Valves are diaphragm-operated, pilot-controlled valves designed to automatically regulate pressure, flow, and level in water pipeline systems. Operating solely on line pressure, these valves require no external electrical power and provide reliable, fail-safe performance even in remote or unmanned installations. By combining a robust main valve with a modular pilot control system, a single hydraulic valve platform can be configured to perform multiple control functions based on project requirements.

Material of Construction

Body : Ductile Iron (GJS 500-7)

Bonnet : Ductile Iron

Diaphragm : EPDM reinforced with nylon fabric

Seat : Stainless Steel AISI 304 / 316

Stem : Stainless Steel AISI 304 / 316

Disc : Ductile Iron with EPDM sealing

O-Rings : NBR

Fasteners : Stainless Steel A2 / A4

Coating : Fusion Bonded Epoxy ≥ 250 μm

Operating Temperature : 0°C to 80°C

Flange Standard : EN 1092-2

• Precise automatic control based on system pressure, flow, or level

• Straight-through flow design for low head loss and high flow efficiency

• Reinforced flexible EPDM diaphragm with nylon fabric reinforcement for extended service life

• Single moving assembly with simple internal construction & fewer moving parts

• Stable, noise-free operation with smooth modulation and no vibration

• Modular pilot control system supporting PRV, PSV, FCV, LCV, surge, and solenoid configurations

• SCADA and automation ready with solenoid-assisted control for remote ON/OFF operation via PLC/SCADA systems

Key Features

Size Range

DN 50 – DN 800

Pressure Rating

PN 10 / PN 16/ PN 25/ PN 40

Reservoir inlet and outlet control

Water treatment plants

Pumping Stations & Water transmission pipelines

Irrigation networks

Typical Applications

PLUNGER / NEEDLE TYPE CONTROL VALVE

• Pressure Reducing Control: Automatically reduces and maintains downstream pressure to a preset value, protecting pipelines and end-user systems from excessive pressure.

• Pressure Sustaining / Relief Control: Maintains minimum upstream pressure or relieves excess pressure to safeguard pumping systems and transmission mains.

• Flow Control: Regulates flow rate to a preset maximum, ensuring controlled distribution and system balancing

• Level Control (Remote Float Control): Maintains desired water level in tanks, reservoirs, and sumps using float-operated or pilot-based sensing.

• Solenoid Control: Enables remote ON/OFF control of the valve through electrical solenoid pilots, suitable for automation and SCADA integration.

• Solenoid-Controlled Isolation: Provides rapid and reliable pipeline isolation during emergency shutdowns or operational control.

Available Control Functions

IO Valves Hydraulic Control Valves can be configured for the following applications by selecting appropriate pilot arrangements and accessories:

Pressure reducing stations, Pressure sustaining / relief systems