RB Control Choke

The RB Series: RB Control Choke Valves’ unique valve trim design provides accurate control by the use of precision orifices in the flow nozzle. This design minimizes wear and maximizes service life.

Connection Size: 2″, 3″, 4″, 6″
Connection Type: Flanged
Body Style: Angled
Body Material: LACS 4130

RB2 Control Choke Valve

Cv: 3, 6, 12, 35 (Standard)
Bean Size: 78 / 64th’s (Standard)
Stroke Length: 1.25”
Stem Diameter: 0.625”
MAWP: 10,000 PSIG
HU MAWP:15,000 PSIG

RB3 Control Choke Valve

Cv: 35, 64, 78, 95, 115 (Standard)
Max Bean Size: 141/64ths
Stroke Length: 1.75”
Stem Diameter: 0.625”
MAWP: 6,000/10,000 PSIG
HU MAWP:10,000 PSIG

RB4 Control Choke Valve

Cv: 80, 164
Bean Size: 169 / 64th’s
Stroke Length: 2.45”
Stem Diameter: 0.75”
MAWP: 6,000/10,000 PSIG

RB6 Control Choke Valve

Cv: 78, 420
Bean Size: 270 / 64th’s
Stroke Length: 4.25”
Stem Diameter: 1.0”
MAWP: 6,000 PSIG

Accurate Control – Multi-Orifice Nozzle design provides precise control over a wide range of flows.
Bolted Bonnet – A bolted bonnet prevents corrosion, cross-threading, and galling of large threaded connections. The design allows for simple assembly and disassembly.
Extended Mean Time Between Service – Robust design, application of hardened materials, and efficient flow geometry results in maximum production potential and minimum service requirements.
Easy Maintenance – All Control Choke Valves are designed with special actuator mounting systems so the choke can be maintained without disassembly of the actuator and components or instrument connections.
High Turndown Ratio – Clean flow geometry, high capacity, and accurate control mean the valve is suitable for both start-up and end-of-field-life-process scenarios. In short, our control choke valves offer a one-valve solution for the full process life.

The RB Series Control Valve features several unique design characteristics that minimize wear and maximize service life. The nozzle and external sleeve trim is designed to contain turbulence and wear by managing the flow into the nozzle and centralizing it into bore causing the flow streams to impinge on each other. The valve body and outlet are protected from wear because the energy conversion as a result of the pressure drop is concentrated in the trim cavity before the flow enters the outlet. This eliminates the typical wear problems in the valve outlet. The Upstream and Downstream balanced sleeve design greatly reduce the breakway and closing thrust requirements to lift the sleeve on and off seat as well as during stem travel making the control stable and precise yielding better accuracy and repeatability.