Published on: Apr 24, 2014

By: Valcor Scientific

Valcor’s SV91 cryogenic solenoid valve series is a 2-way, direct acting, floating-seal design cryogenic solenoid valve for control of cryogenic fluids down to extreme temperatures, as low as -454°F. It is available in normally closed and normally open configurations. The direct acting design is less prone to hang-up during operation and the floating-seal has self wiping action for tight shut-off. The SV91 cryogenic valve series has all welded joints which is designed to eliminate external leakage. Along with the standard construction, Valcor offers a high flow design and a design made specifically for LCO2. Consult a Valcor application engineer for help in specifying the valve for your needs.

SV91 Series Features

  • Self wiping floating seal design for cryogenic fluids to -454°F
  • Direct acting design with no minimum operating pressure
  • All welded construction eliminates external leakage
  • Special constructions for high flow and LCO2
  • Pressure rating up to 1200 PSI
  • Straight thru flow path yields high flow with less turbulence
  • Mountable in any position

More Information about our SV91 Series
The SV91 cryogenic solenoid valve series is a rugged construction suitable for a variety of cryogenic applications such as the following:

SV91 Series Applications

  • Food processing/freezing
  • Backup system for biologic freezers
  • Environmental chambers
  • Dewar transfer
  • Gas chromatography
  • Fogging machines
  • Cryogenic surgery equipment

About our other Cryogenic Solenoid Valves

Valcor Scientific’s line of cryogenic valves are designed specifically for cryogenic applications, with both normally closed and normally open 2-way valves available. All models of Valcor cryogenic valves are direct acting, not pilot operated, which helps reduce freezing and locking up. They are designed for high performance and reliability. Constructed of either welded stainless steel or brass body construction, Valcor’s cryogenic valves have fluid temperature ranges from -454°F to 32°F. Port sizes range from 1/8” to ¾” NPT, with pressures to 1,000 psi. Sizes of Orifices range from 3/64” to 3/8”, with Cv ratings of .06 to 4.90.


The other types of cryogenic solenoid valves offered are the SV95 and SV97:

sv 95 cryogenic solenoid valve
SV95

The SV95 is a normally closed, direct acting, high cycle, poppet style valve that employs Valcor’s proprietary constant load PTFE or PFA seal disks. The PTFE plunger guides help the valve to operate in the extremely high friction environment that is typical with cryogenic applications, which also yields quieter operation and long life. This series has an economical forged brass body, with ports ranging in size from 1/8” through 1/4” NPT. It has Cv values of .06 to .71 and pressures up to 1,000 psi. The SV95 series is mountable in any position and can be used for heavy and high cycle applications such as thermal cycling, food processing, and biologic freezers.

For more information on the SV95 series, click here for the data sheet.


sv97 cryogenic solenoid valve
SV97

The SV97 is a normally closed, direct acting, high cycle poppet style valve that employs Valcor’s proprietary constant load PTFE or PFA seal disks. The spring-loaded disc and direct acting poppet design ensures proper sealing and reliable shifting in high on/off cycling. This series has a welded stainless steel body, with a port size of 1/4”. It has Cv values of .04 to .80 and pressures up to 1,000 psi. The SV97 series is mountable in any position and typically used for heavy and high cycle applications such as thermal cycling, food processing, and biologic freezers.

For more information on the SV97 series, click here for the data sheet.