Oil Technology

Oil Technology

Oil Technology

Products & Solutions

Expanding Gate Valve

Design, manufacturing API Spec 6A
Size: 2 1/16" to 7 1/16"
Working Pressure: 2,000; 3,000; 5,000 PSI
Temperature Range: - 60°C - +121°C

Non-rising stem;
Body and bonnet connected by bolts;
Body and bonnet sealing: softmetallic crushing;
Gate: parallel expanding,with inconel springs;
Stem packing: V TFE glass filled gaskets&soft packing
Loose fitted seat;
Connection: flange type 6B ; according to API 6A , with Ring Joint,
or API LP threaded ;
Seat sealing: PTFE-ring;
Flow direction stamp on the body

API Spec. 6A - 2,000; 3,000; 5,000 PS

Flange Type

The seats are pressed into the body with an O-ring into the back groove and with TFE insert on the face. TFE insert assures a wiping action on sealing surfaces, while seal is of metal-to-metal type. Full metal-to-metal seats are available on request. Gate and seat replacement is possible, with the valve in line, without the need for special tools. Upper and lower thrust bearings isolated from well fluid, minimizing torque. Stem packing can be reenergized with valve under pressure. The valve body may be grease filled through suitable fittings provided on body. To close valve rotate the hand-wheel clockwise, gate moves downward, minor segment of the gate strikes the body and push both parts of the gate to the seats. To open valve, rotate the hand-wheel counter-clockwise until strikes the bonnet to assure full opening.