The Axial‑Flow LincolnLog trim design employs a tortuous‑path flow geometry to distribute the total pressure drop evenly along the longitudinal axis of the valve plug.
All axial throttling stages operate synchronously as the plug travels through its stroke, preserving consistent staging‑reduction ratios across every valve‑lift position.
Precise regulation of fluid velocity and pressure drop suppresses cavitation and prevents subsequent trim‑component damage.
This valve delivers superior performance for pump‑recirculation circuits and high‑pressure liquid‑letdown services, including applications within hydrotreater process units.
Technical Data
- Pressure rating
- API 6A 10K or 15K in sizes 1" through 6"
- Body material
- carbon steel; stainless steel; chrome-moly Options include: F6NM Martensitic Stainless Steel, F51 Duplex Stainless Steel, F55 Duplex Stainless Steel and Nickel-Alloy Inconel 718
Specifications
- Size
- 1” through 12” (25 through 300 mm)
- Ratings & Connections
- flanged: ANSI 600 - 2500 UNI-DIN 100 - 400; welded: BW or SW
- Actuators
- model 51/52/53 pneumatic piston; model 87/88 multi-spring-opposed diaphragm; cylinder
- Trim
- axial flow technology; multi-stage, cage-guided, anti-cavitation trim; Class VI available on request
- Inherent Characteristics
- linear

