Plunger Valve Supplier in South Africa

Plunger valves are designed for controlled flow regulation, pressure management and reliable shut-off in water transmission, pumping and industrial pipeline systems. African Valve, a Plunger Valve Supplier in South Africa, provides plunger valve configurations for water infrastructure, pumping stations, pressure-control systems and industrial applications. The valve uses an axially guided plunger to vary the available flow area, allowing controlled regulation of flow and pressure. Configurations can include manual, electric, pneumatic or hydraulic actuation depending on the required control arrangement.

Plunger Valve Features

Precise Flow Regulation
Pressure Control
Surge Management
Guided Plunger Movement
Multiple Actuation Options
Reliable Shut-Off
High Differential-Pressure Capability
Application-Specific Configuration

Technical Specifications

Parameter	Typical Specification
Valve Type	Plunger Valve
Function	Flow Regulation / Pressure Control / Shut-Off
Size Range	DN80-DN2500, depending on valve series
Pressure Rating	PN10 / PN16 / PN25 / PN40, depending on valve series
End Connection	Flanged
Flange Standard	EN 1092-2, where applicable
Face-to-Face	EN 558, where applicable
Operation	Handwheel / Gearbox / Electric / Pneumatic / Hydraulic
Flow Direction	Typically Unidirectional
Installation	Horizontal, or as permitted by the valve design
Coating	Fusion-Bonded Epoxy / Approved Protective Coating
Temperature Range	Up to approximately 120°C for applicable water-service configurations
Testing	Hydrostatic Pressure and Leakage Testing according to applicable specification

Published plunger-valve ranges support sizes from approximately DN80 to DN2500 and pressure classes including PN10, PN16, PN25 and PN40, although the available combination of size and pressure class varies by valve series. Water-service designs commonly use flanged ends, while EN 1092-2 and EN 558 are applicable to relevant configurations.

Materials & Components

Body - Ductile Iron / Carbon Steel / Stainless Steel
Plunger - Stainless Steel / Corrosion-Resistant Alloy
Stem / Shaft - Stainless Steel
Seat / Sealing Ring - Stainless Steel / EPDM / NBR
Guides / Bearings - Bronze / Stainless Steel / Low-Friction Material
O-Rings / Seals - EPDM / NBR
Fasteners - Stainless Steel / Carbon Steel
Coating - Fusion-Bonded Epoxy / Protective Coating

Material selection depends on the operating medium, pressure, temperature, flow velocity, corrosion conditions and required service life. For water infrastructure, corrosion-resistant internal components and protective coatings can be selected according to water quality and project requirements.