DESIGN

Alphacon Cast Steel Gate Valve are designed to conform to API 600, ISO 10434, BS 1414 and ASME B16.34

Wall Thickness      : API 600, API 6D
Face To Face         : ASME 16.10, BS 2080, and ISO 5752
Flange End            : ASME B16.5 for 2" – 24"
                                ASME B16.47 series A or B for 26" and larger
BW End                 : ASME B16.25
Inspection & Test  : API 598, BS EN 12266, API 6D

CASTINGS

All castings for valve productions are manufactured in our own foundry facility. Raw materials purchased are carefully inspected before proceed to production to ensure conforms to the standard & required specifications that meet ASTM, JIS, BS, DIN, etc.

BODIES

Bodies are designed to provide a minimum pressure drop and have a sufficient wall thickness to withstand the torsion forces and stresses normally encountered in piping systems and to compensate for erosion and corrosion effects.

COVERS

Covers are designed in various types to meet the valve body & operational requirements and connections are either flat face, groove for gasket, ring joint faces. Pressure Seal Cover available for Class 900 / 1500/ 2500.

DISC ASSEMBLY

Disc is fastened securely to disc hanger with a lock nut and cotter pin. Disc is free to rotate to avoid localized wear. All parts are accessible from top for easy servicing.

SEAT

Integral seat of Forged steel seat is machined and surface is overlay with hard alloy specified by the customer. Seat is either threaded or welded onto valve body.

GASKETS

Class 150/300/600 : Spiral Wound Graphite with Stainless Steel
Class 900          : Ring Joint Metal
Other gasket materials are also available and are selected generally according to application pressure & temperature.