Need help? Contact us at (800) 443-8817

Home  > Valves > Next Gen Valves
  To Search other Product change selection here.

MDC Introduces Next Generation Angle Valves


MDC’s next generation high and ultra-high vacuum stainless steel angle and inline valves have been engineered to meet today’s demanding market for high cycle life and performance reliability while at the same time taking advantage of efficient designs plus a streamlined manufacturing processes developed to help reduce cost.

MDC’s next generation angle and inline valves are available with either manual or electropneumatic actuation. The valve bodies are designed from T304 stainless steel with a welded bellows seal made of AM350 allowing for maximum poppet opening and greater conductance. At the same time the overall footprint remains small to accommodate easy installation.

These valves are guaranteed to perform in clean vacuum applications with a minimum service life up to 1.5 million cycles. Like all MDC valves the bodies are TIG fusion welded. The surface finish is electropolished to ensure low outgassing. UHV series valves are supplied with a copper bonnet and Viton poppet seal while HV series valves feature Viton seals.

MDC’s next generation angle and inline valves are offered in sized from ¾” through 4” nominal with standard flange configurations for Del Seal for UHV or ISO-KF for HV applications. All valves are designed with air to open spring to close actuation.

Vacuum range:  HV: 10-8 Torr / UHV: 10-10 Torr 
Leak test:  2 x 10-10 std cc / sec He 
Bake temperature:  150o
MTTF (life):  1.5 million cycle 
Time from open-close:
<0.5 sec 
Operating temperature:
20o to 90oC
Differential pressure:
15 psi 
Position indicator:
24 VDC or 120 VAC
Operating pressure:
60 - 95 psi

Standard Features:

  • UHV and HV series
  • Del-Seal™ CF, ISO KF Kwik-Flange™
  • Manual and Electropneumatic actuators
  • OFE copper metal and Viton® elastomer bonnet seals
  • Welded bellows actuator seal
  • TIG welded internal body joints
  • Electropolished interior and exterior surfaces
  • Solenoid Valve Sold Separately

For product listing, features &
specifications click on links below
3/4 Inch Ports
1 Inch Ports
1 - 1/2 Inch Ports
2 Inch Ports
2 - 1/2 Inch Ports
3 Inch Ports
4 Inch Ports

Optional Features:

  • Magnetic reed switch position indicators
  • Air control solenoid valves for 120VAC, 240VAC and 24VDC service
  • High temperature 250°C Kalrez® poppet seal (UHV Series Only)
  • Replacement Gasket Kit For Bonnet / Poppet Seals