Circle Valve Technologies Inc.
307 Derstine Ave, Suite 204
Lansdale, PA 19446

Toll Free:800-645-6733
Phone: 267-933-6300
Fax: 267-933-6305
Email: [email protected]
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FO Series Face Seal Fittings

Features
  • O-ring seal to provide perfect leak-tight service for working conditions from critical vacuum to high pressure
  • O-ring contained completely for maximum efficiency
  • Smooth finish on gland face to ensure psitive seal
  • Test ports at nut for easy leak testing
  • Easy installation and maintenance
  • Silver-plated female threads
  • Standard surface roughness finished to an average of Ra 10 uin. (0.25 um)
  • Every gland and body marked with size, material and heat code
FO Series Fittings
Unit of Measure
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Item #

Body Type

Body Material

Connection Size 1

Connection Type 1

Connectiont Size 2

Connection Type 2

Operating Pressure

SS-CW-FO12-TB12A N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 3/4 in N/A O-Ring Face Seal N/A 3/4 in N/A Automatic Tube Weld N/A 0 to 2200 psig0 to 151 bar
SS-CW-FO16-TB16A N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1 in N/A O-Ring Face Seal N/A 1 in N/A Automatic Tube Weld N/A 0 to 2200 psig0 to 151 bar
SS-LM-FO4-NS2 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/4 in N/A O-Ring Face Seal N/A 1/8 in N/A Male NPT Elbow N/A 0 to 10000 psig0 to 689 bar
SS-LM-FO4-NS4 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/4 in N/A O-Ring Face Seal N/A 1/4 in N/A Male NPT Elbow N/A 0 to 8000 psig0 to 551 bar
SS-LM-FO8-NS6 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/2 in N/A O-Ring Face Seal N/A 3/8 in N/A Male NPT Elbow N/A 0 to 7800 psig0 to 537 bar
SS-LM-FO8-NS8 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/2 in N/A O-Ring Face Seal N/A 1/2 in N/A Male NPT Elbow N/A 0 to 7700 psig0 to 530 bar
SS-LM-FO12-NS12 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 3/4 in N/A O-Ring Face Seal N/A 3/4 in N/A Male NPT Elbow N/A 0 to 7300 psig0 to 502 bar
SS-LM-FO16-NS16 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1 in N/A O-Ring Face Seal N/A 1 in N/A Male NPT Elbow N/A 0 to 5300 psig0 to 365 bar
SS-LU-FO4-FL4 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/4 in N/A O-Ring Face Seal N/A 1/4 in N/A Tube Fitting Elbow N/A 0 to 10200 psig0 to 702 bar
SS-LU-FO8-FL6 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/4 in N/A O-Ring Face Seal N/A 3/8 in N/A Tube Fitting Elbow N/A 0 to 6500 psig0 to 447 bar
SS-LU-FO8-FL8 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/2 in N/A O-Ring Face Seal N/A 1/2 in N/A Tube Fitting Elbow N/A 0 to 6700 psig0 to 461 bar
SS-LU-FO12-FL12 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 3/4 in N/A O-Ring Face Seal N/A 3/4 in N/A Tube Fitting Elbow N/A 0 to 5800 psig0 to 399 bar
SS-LU-FO16-FL16 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1 in N/A O-Ring Face Seal N/A 1 in N/A Tube Fitting Elbow N/A 0 to 4700 psig0 to 323 bar
SS-LP-FO4-ST7 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/4 in N/A O-Ring Face Seal N/A 7/16-20 in N/A Male SAE/MS Thread Adjustable Elbow N/A 0 to 4500 psig0 to 310 bar
SS-LP-FO8-ST9 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/2 in N/A O-Ring Face Seal N/A 9/16-18 in N/A Male SAE/MS Thread Adjustable Elbow N/A 0 to 3600 psig0 to 248 bar
SS-LP-FO8-ST12 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/2 in N/A O-Ring Face Seal N/A 3/4-16 in N/A Male SAE/MS Thread Adjustable Elbow N/A 0 to 3600 psig0 to 248 bar
SS-LP-FO12-ST17 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 3/4 in N/A O-Ring Face Seal N/A 1 1/16-12 in N/A Male SAE/MS Thread Adjustable Elbow N/A 0 to 2900 psig0 to 199 bar
SS-LP-FO16-ST21 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1 in N/A O-Ring Face Seal N/A 1 5/16-12 in N/A Male SAE/MS Thread Adjustable Elbow N/A 0 to 2300 psig0 to 158 bar
SS-LU-FO4 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/4 in N/A O-Ring Face Seal N/A N/A Body Union Elbow N/A 0 to 14300 psig0 to 985 bar
SS-LU-FO8 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/2 in N/A O-Ring Face Seal N/A N/A Body Union Elbow N/A 0 to 11100 psig0 to 764 bar
SS-LU-FO12 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 3/4 in N/A O-Ring Face Seal N/A N/A Body Union Elbow N/A 0 to 10900 psig0 to 751 bar
SS-LU-FO16 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1 in N/A O-Ring Face Seal N/A N/A Body Union Elbow N/A 0 to 8800 psig0 to 606 bar
SS-TTT-FO4 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/4 in N/A O-Ring Face Seal N/A N/A Body Union Tee N/A 0 to 14300 psig0 to 985 bar
SS-TTT-FO8 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 1/2 in N/A O-Ring Face Seal N/A N/A Body Union Tee N/A 0 to 11100 psig0 to 764 bar
SS-TTT-FO12 N/A Face Seal O-Ring Body N/A 316 Stainless Steel N/A 3/4 in N/A O-Ring Face Seal N/A N/A Body Union Tee N/A 0 to 10900 psig0 to 751 bar
Unit of Measure
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