Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
White Papers

Valves for Cryogenic Applications in Liquefaction Plants

Selecting valves for cryogenic applications in liquefaction plants can be quite tricky. Application expertise, along with a high quality valve, is needed in order for the valve to operate effectively and efficiently in these demanding facilities. This article presents the latest in valve innovations for liquefaction plants. The valves used in liquefaction encounter natural gas made up of a mixture of several components.

RF flanged triple offset valve during cryogenic testing.

RF flanged triple offset valve during cryogenic
testing

The typical range of these components is: 

  • Nitrogen: 0 – 1%
  • Methane: 80 – 99%
  • Ethane: 1 – 17%
  • Propane: 0 – 1.5%
  • Butanes: 0 – 1.2%
  • Pentanes+: <1%

Once liquefied, the gas is then properly treated and stored at atmospheric pressure of approximately -161°C and a density of 424.1 kg/m3 in a volume approximately 625 times smaller than when it was gaseous.

Within the liquefaction plant are isolation, check and control valve applications in a range of temperatures and pressures from ambient to -161°C and ASME class 150 through 900 (20 barG to 150 barG). These conditions and the specific nature of low temperature cryogenic fluids demand specific valve performance for plant reliability, protecting equipment and operational safety.

Three innovative valve designs that command a significant share of the global LNG market are:

  • Triple offset rotary tight isolation valves
  • Noise control and automation in control valves
  • Single and dual flapper non-return (check) valves

Please fill out the following form to access this premium content

Privacy Policy:
Empowering Pumps & Equipment is committed to protecting and respecting your privacy, and we’ll only use your personal information to administer your account and to provide the products and services you requested from us and/or our partner. We may also send you our eNewsletter, of which you can unsubscribe and/or customize in your email preferences. By providing your information including email and clicking the button below, I agree to the Terms and Conditions and Privacy Policy, provide my electronic signature, and consent to receive the product/service requested. Consent is not a condition of any purchase. You may opt out any time.

*

Join the #PumpTalk Community


By submitting this form, you are consenting to receive marketing emails from: Empowering Pumps & Equipment, 2205-C 7th Street, Tuscaloosa, AL, 35401, http://www.empoweringpumps.com. You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact