The 77000‑Series multi‑stage expanding‑area control valve is purpose‑built for services involving high‑pressure compressible fluids and two‑phase media.
Capable of effectively mitigating erosion, vibration and excessive noise, this valve serves as an optimal solution for high‑pressure, high‑temperature hydrocarbon‑liquid applications subject to flashing conditions.
Its broad‑ranging typical use‑cases cover hot‑high‑pressure separator control within hydroprocessing units, offshore wellhead choke‑valve service, and high‑pressure gas letdown processes carrying entrained particulate debris.
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Technical Data
- Pressure rating
- flanged: inlet ANSI 900-2500, outlet ANSI 900 – 2500, UNI-DIN 150 - 400; welded: BW or SW
- Body material
- carbon steel; stainless steel; chrome-moly
Specifications
- Size
- 2” x 3” through 8” x 10” (50 x 80 through 200 x 250 mm)
- Actuators
- model 37/38 spring-opposed diaphragm; cylinder
- Trim
- axial flow technology; multi-stage trim (expanding area type); anti-cavitation, flashing, de-gassing, and low noise
- Inherent Characteristics
- linear