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Home > Product Division > Valves > Check Valve > Dual Plate

Dual Plate, Check Valve

Metaval Dual Plate Check Valves are compact, lightweight, and efficient non-return valves designed for high-performance applications. Featuring a spring-assisted dual disc mechanism, these valves close quickly to prevent water hammer and reverse flow, making them ideal for both vertical and horizontal installations in space-constrained piping systems.

Size Range

1/2” to 48”

Class Range:

Class 150 to 2500

PN Range:

PN 10 to PN 100

Size Range:

1/2” to 48”

Pressure Rating:

Class 150 to 2500

PN Range:

PN 10 to PN 100

Temperature Range:

Up to 400°C (depending on trim)

End Connections:

Wafer, Lug, Flanged, Butt Weld

Face-to-Face:

EN 558 / ISO 5752 / API 594

Design & Manufacturing: API 594 / EN 12334
End Connections: ASME B16.5 / B16.47 / EN 1092-1 / AS 4087 / AS 4087 / BS 5155 / B16.25 / B16.11
Pressure-Temperature Ratings: ASME B16.34
Testing: API 598 / EN 12266-1

Body: ASTM A216 WCB, CF8, CF8M, LCB, WC6, WC9, Duplex, Super Duplex
Disc: CF8 / CF8M / Duplex / Hastelloy / Monel
Spring: SS316 / Inconel / Duplex (as per service)
Gasket: Spiral Wound SS304 / SS316, Graphite, PTFE
Stud & Nut: A193 B7 / A194 2H, B8/8, B8M/8M, B3/3, B3M/3M

Spring-Loaded Disc Assembly: Minimizes water hammer
Compact Design: Space-saving wafer construction
Low Cracking Pressure
High-Strength Disc Stops Prevent Overtravel
Ideal for High-Frequency Operation

Hydrostatic, Pneumatic, Nitrogen, Helium Pressure Tests
PMI, UT, RT, MPI, DPT
Surface Finish and Microstructure Verification
Hardness, Impact, and Tensile Testing
Spectrometer and Dimensional Inspection
Functional Testing with Counterweight (if applicable)
Oxygen Cleaning (as required)

Power Plants
Process Water and Cooling Systems
Chemical and Petrochemical Pipelines
Fire Protection Systems
HVAC Lines
Offshore and Onshore Oil & Gas Installations

Water and Effluents
Steam
Non-corrosive Gases
Hydrocarbons
Light Slurries

CE Certified
PED (2014/68/EU)
ISO 9001:2015
ISO 14001:2015
ISO 45001:2018
Fire Safe Design – API 607

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

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