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Home > Product Division > Valves > Butterfly Valve > Concentric

Concentric, Butterfly Valve

Metaval’s Concentric Butterfly Valve is a high-performance, cost-effective solution designed for general-purpose shut-off and throttling applications. Featuring a central disc and resilient soft seat, it offers excellent flow control with minimal pressure drop. With its simple yet durable design, it is ideal for low-to-medium pressure systems across a broad range of industries.

Size Range

2” to 48”

DN Range:

50 to 1200

Temperature Range:

PN 10 to PN 25

Size Range:

2” to 48”

Pressure Rating:

Class 150

DN Range:

DN 15 to 1200

Temperature Range:

-10°C to 120°C (depending on seat material)

End Connections:

Wafer, Lug, Flanged, Tri-Clamp

PN Range:

PN 10 to PN 25

Valve Design: API 609, EN 593, AWWA C504, ASME B16.34, AS4795.1, ISO 5752
Material Standards: EN 16668
Face-to-Face: EN 558, ISO 5752, API 609, MSS-SP-67, ASME B16.10
Top Flange: ISO 5211
Flange Drilling: EN 1092-1, ASME B16.5/B16.47 AS 4087, AS2129, BS5155 
Testing Standards: EN 12266-1, API 598

Body: Ductile Iron, Cast Iron, WCB, Stainless Steel others on request
Disc: Ductile Iron (epoxy coated), Stainless Steel (CF8, CF8M), Bronze
Seat: EPDM, NBR, PTFE, Viton, Neoprene, PFA
Stem: SS 410, SS 304, SS 316
Gasket: NBR, EPDM, PTFE

Bubble-tight Shut-off: Zero leakage in both flow directions
Compact and Lightweight: Ideal for space-constrained systems
Easy Maintenance: Seat is field-replaceable
Bi-directional Flow: Versatile flow control
ISO Mounting Pad: Compatible with actuators
Corrosion Resistant Options: Coated bodies or stainless disc options available

Hydrostatic and Pneumatic Pressure Testing
Helium and Nitrogen Leakage Testing
Seat Leakage Testing – EN 12266-1 Rate A
Positive Material Identification (PMI)
DPT, Hardness, Surface Roughness Checks
Dimensional Accuracy and Functional Testing

Water and Wastewater Treatment
HVAC and Cooling Systems
Food and Beverage
General Industrial Utilities
Fire Protection Systems
Chemical Processing (non-corrosive media)

Potable Water
Treated Effluents
Chilled Water
Neutral Chemicals
Low-Pressure Air and Gases

CE Certified
PED 2014/68/EU
ISO 9001:2015 – Quality Management
ISO 14001:2015 – Environmental Management
ISO 45001:2018 – Occupational Health & Safety

Documentation

Complete In-House Manufacturing Control

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.

Contact Us

Get in touch with our team for additional information on product pricing, technical data, project support and more.