Get In Touch

17546 N. Airline Highway
Prairieville, LA | 7076

Phone: (225) 442-1000
Fax: (225) 442-1010

Email: [email protected]

Stocking Locations

Baton Rouge, Louisiana, USA
Lyon, France


Seattle, Washington, USA
Houston, Texas, USA
Oakland, California, USA
Moscow, Russia
Düsseldorf, Germany
Shanghai, China

The products and services HF Alkylation Equipment brings to market are:

  • New Descote Logo

    More than 30 years of experience in bellows sealed block and control valves for HF alkylation units.

    Major features & benefits

    • Zero seat leakage – Stellite® 21 or Hastelloy® C276 seats
    • Zero stem leakage – Hastelloy® C276 bellows sealed technology
    • Zero external leakage – Level 2 castings, meeting ASTM A216 including Supplement S16
    • Easy to operate – Low turning torque
    • UOP approved – HF-1, HF-10, HF-2, HF-20, HF-4, HF-40, HF-5, HF-50
    • SIL 3 Certified
  • Triple offset valve (TOV) formally approved by UOP in August 2015 for HF alkylation service.  The TOV design is considered the future replacement valve for gate valves 8”, 300# and larger.

    Major features and benefits

    • Zero seat leakage – Tested per API 598, zero bubbles
    • Zero external leakage – WCB castings meet ASTM A216 including Supplement S16
    • Blowout proof stem per API 609
    • Fire Safe per API 607 with zero leakage through or external
    • SIL 3 Certified
    • UOP approved – HF-2, HF-20, HF-5, HF-50

    *   Note:  In 2017, Emerson completed the purchase of the valves & controls business from Pentair plc, which included the Vanessa line of triple offset valves.

  • DurcoLogo

    Sleeve-lined Monel® plug valves listed by UOP and the former Phillips licensing groups in the late 70’s and early 80’s.  As the global master stocking distributor, our goal is to make sure an abundant amount of inventory is on the shelf to support Flowserve’s legacy distribution, integrated supply and black tie service center networks.

    Major features and benefits

    • Zero seat leakage – Tested per API 598, zero bubbles
    • Zero external leakage – Fire sealed per API 607 (leak out only)
    • Solid M35-1 Monel® body material, radiographed per MSS-SP-54
    • UOP approved – HF-1, HF-10, HF-2, HF-20, H-5, HF-50
  • Orion-Logo

    Magnetic level indication for the replacement of sight glasses and tricocks used on storage vessels and seal pots.

    Major features and benefits

    • Solid Hastelloy® C276 chamber and float construction
    • Indication flags are solid metal construction
    • Both magnetostrictive and guided wave radar transmitters available

Our Partners

  • Factory authorized service center for the remanufacturing of Descote, Durco and Vanessa brands of UOP approved valves.

  • A team of subject experts with over 100 years of combined experience in UOP and Phillips units around the globe.