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A 3D render of a yellow industrial check valve. The valve has "VELAN" and "800" embossed on the front along with the number "1". It features a robust, rectangular top with two raised bolt-like structures for secure sealing.

API 602 Hydrofluoric acid alkylation check valves

Product Line
  • Hydrofluoric acid alkylation valves
Product Type
  • Check

Features & Benefits

  • Available designs: spring actuated piston and ball, and swing check.
  • Bonnet joint is precision machined and has a special surface finish for extended service life.
  • Fully encapsulated gasket design with metal-to-metal body to bonnet contact for optimal and controlled gasket compression.
  • Wide variety of end connections as per client’s needs: flanged, BW, SW, NPT, weld stubs, including other types.
  • Swing check non-rotating disc is fastened securely to disc hanger with a lock nut and cotter pin. All parts are accessible from top for easy servicing.
  • Cage unit design with no body penetration by hinge pin.
  • HF acid detecting paint allows for an immediate visual detection when exposed to acid or acid vapors to ensure valve integrity.

Product Details

Spec Detail
Size Range NPS 1/2 - 2 (DN 15 - 50)
Pressure Class ASME Class 150 - 800
Standard Connections Threaded, Socket weld, Flanged, Butt weld

Quality That Lasts

Precision Engineered

Our products, crafted with cutting-edge precision, set the industry standard for quality, reliability, and versatility across an expansive range of applications.

Long-Lasting & Durable

Velan leverages advanced engineering capabilities and innovation to create durable valves that meet critical industrial needs in the areas of nuclear power, mining, oil and gas, and more.

Certified & Tested

Innovation is our DNA. From our first steam trap to advanced cutting-edge valve designs, we are committed to providing solutions that define the highest standards of quality and performance.

Contact Us

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Need support or have a question? The Velan team is here to help.

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