Casting B.B Flanged Globe Valve

The cast B.B flange globe valve is a forced-sealed valve, so when the valve is closed, pressure must be applied to the valve flap to force the seal face to leak. When the medium enters the valve from below the valve flap, the resistance to be overcome by the operating force is the friction force of the valve stem and the packing and the thrust generated by the pressure of the medium. The force of closing the valve is greater than the force of opening the valve, so the valve stem The diameter of the stem should be large, otherwise the valve stem can be bent.

Product Details

Products Description

The casting B.B flanged globe valve is a forced-sealed valve, so when the valve is closed, pressure must be applied to the valve flap to force the seal face to leak. When the medium enters the valve from below the valve flap, the resistance to be overcome by the operating force is the friction force of the valve stem and the packing and the thrust generated by the pressure of the medium. The force of closing the valve is greater than the force of opening the valve, so the valve stem The diameter of the stem should be large, otherwise the valve stem can be bent.

Product Specifications

The casting B.B flanged globe valve design and Manufacture standard:

Design & Manufacture: ASME B16.34 / BS 1873

Constructions: O.S&Y Construction, Bolted Bonnet, Welded Bonnet & Pressure Sealed Bonnet

Back-seating, Renewable Seat Ring

Full Port / Conventional Port

Technical Specification

· Manufacturing standards: API, ANSI, BS, DIN, JIS

· Size range: from 1/2 inch to 24 inches (DN15mm - DN600mm)

· Pressure: from ANSI class 150 to 2500 (PN1.6 - 42MPa)

· Applicable temperature: -196 - 593 deg. C

· Connection: flanged, butt-welded