Outer Cage Type Choke Valve

The outer cage type choke valve features a unique integrated cage design technology that increases the inner annular space and reduces erosion, resulting in low valve core corrosion and a large controllable flow rate. Sealing performance is ensured by a metal main seal between the valve body and valve cover, combined with a PTFE multi-stage lip spring auxiliary seal on the valve stem.

For operational convenience, the valve includes a 64-grid visible position indicator on the top to easily track flow rates, and a stable cage structure designed to reduce equipment vibration and noise. Customers can choose from multiple drive forms—including manual, hydraulic, pneumatic, or electric. Additionally, the equipment offers simple maintenance and low manufacturing costs.

Basic Parameters

Nominal diameter: 2-1/16" to 4-1/16"
Working pressure: 2,000 PSI to 15,000 PSI
Temperature: –75 °F to +250 °F (–60 °C to +121 °C)
Main materials: AA, BB, CC, DD, EE, FF, HH
Specification level: PSL1–3G
Performance level: PR1–2
Nozzle specification: 1" to 3"

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