Body is cast with integral seat.
Valve has outside screw and yoke, with lubricating stem, deep stuffing box, and gland with ample clearance for freedom of movement. Available in a wide range of sizes. Seats are cast integral with bodies and precision machined. Stuffing boxes may be repacked under pressure when valves are outside screw and yoke type, with close fitting bonnets providing proper alignment required for the best gasket service. Valves - An exclusive ESCO development.