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NW Flanges, Centering Rings; Weld Ring Stainless Steel, Centering Rings Aluminum / Buna, Aluminum / Viton®

 

 

Flange Weld Ring

  • Stainless steel type 304
  • Low profile

Flange Weld Ring

Flange Weld Ring

 
PART NUMBER TUBE OD ISO A B
KSF-9810 3/8” NW 10 0.380 0.250
KSF-9816 3/8” NW 16 0.380 0.343
KSF-9816-1 1/2” NW 16 0.510 0.461
KSF-9816-2 3/4” NW 16 0.760 0.625
KSF-9825 3/8” NW 25 0.380 0.343
KSF-9825-1 1/2” NW 25 0.510 0.461
KSF-9825-2 3/4” NW 25 0.760 0.625
KSF-9825-3 1” NW 25 1.010 0.938
KSF-9840 3/8” NW 40 0.380 0.343
KSF-9840-1 1/2” NW 40 0.510 0.461
KSF-9840-2 3/4” NW 40 0.760 0.725
KSF-9840-3 1” NW 40 1.010 0.938
KSF-9840-4 1-1/2” NW 40 1.510 1.438
KSF-9850 3/8” NW 50 0.380 0.343
KSF-9850-1 1/2” NW 50 0.510 0.461
KSF-9850-2 3/4” NW 50 0.760 0.725
KSF-9850-3 1” NW 50 1.010 0.938
KSF-9850-4 1-1/2” NW 50 1.510 1.438
KSF-9850-5 2” NW 50 2.010 1.938

 

 

Seal Centering Ring Assembly

  • Aluminum centering ring
  • Replaceable Buna-N O-ring
  • 100° C maximum bake out

Seal Centering Ring Assembly

Seal Centering Ring Assembly

 
PART NUMBER TUBE OD ISO A B
KSCR-1510 1/2” NW 10 0.394 0.210
KSCR-1516 3/4” NW 16 0.630 0.210
KSCR-1525 1” NW 25 0.984 0.210
KSCR-1540 1-1/2” NW 40 1.575 0.210
KSCR-1550 2” NW 50 1.969 0.210

 

 

Seal Centering Ring Assembly

  • Aluminum centering ring
  • Replaceable Viton® O-ring
  • 200° C maximum bake out

Seal Centering Ring Assembly

Seal Centering Ring Assembly

 
PART NUMBER TUBE OD ISO A B
KSCR-1610 1/2” NW 10 .394 0.210
KSCR-1616 3/4” NW 16 .630 0.210
KSCR-1625 1” NW 25 .984 0.210
KSCR-1640 1-1/2” NW 40 1.575 0.210
KSCR-1650 2” NW 50 1.969 0.210

Product information is subject to change without notice. Product images may include options or accessories not included with the base model.

Precision Welded. Performance Proven.
For 50 years, Key High Vacuum Products, Inc. has been a trusted leader in precision-engineered stainless steel high vacuum weldments. With tens of thousands of unique weldments in use—from particle accelerators to industrial leak detectors—our expertise is proven across industries. Rooted in innovation, craftsmanship, and an unwavering commitment to customer satisfaction, we deliver high-quality, customized solutions that drive success. Every day, our team brings a unique blend of passion and precision, ensuring your goals are met with excellence—because your mission matters. Experience the Key High difference.
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Key High Vacuum Products, Inc.
36 Southern Boulevard, Nesconset, NY 11767
1-631-360-3970
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