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: sales@circlevalve.com
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FR Series Face Seal Fittings

Features

  • Metal-to-metal seal to provide perfect leak-tight service for working conditions from critical vacuum to high pressure
  • Precision manufactured gasket to ensure best performance
  • Test port at nut for easy leak testing
  • Silver-plated female threads
  • Standard surface roughness finished to an average of Ra 10 uin. (0.25 um) or Ra 5 uin. (0.13 um) optional
  • All seal faces and male threads protected with plastic caps
  • Every gland and body marked with size, material and heat code
FR Series Fittings
Unit of Measure
« 6 7 8 9 10 

Item #

Body Type

Body Material

Connection Size 1

Connection Type 1

Connectiont Size 2

Connection Type 2

Operating Pressure

6L-WG-FR4-NS4 N/A Welded Gland to Male NPT N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal with Female Nut N/A 1/4 in N/A Male NPT N/A 0 to 8000 psig0 to 551 bar
6L-WG-FR8-NS6 N/A Welded Gland to Male NPT N/A 316L Stainless Steel N/A 1/2 in N/A Face Seal with Female Nut N/A 3/8 in N/A Male NPT N/A 0 to 4300 psig0 to 296 bar
6L-WG-FR8-NS8 N/A Welded Gland to Male NPT N/A 316L Stainless Steel N/A 1/2 in N/A Face Seal with Female Nut N/A 1/2 in N/A Male NPT N/A 0 to 4300 psig0 to 296 bar
6L-WG-FR4-FNS4 N/A Welded Gland to Female NPT N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal with Female Nut N/A 1/4 in N/A Female NPT N/A 0 to 6600 psig0 to 454 bar
6L-WG-FR8-FNS6 N/A Welded Gland to Female NPT N/A 316L Stainless Steel N/A 1/2 in N/A Face Seal with Female Nut N/A 3/8 in N/A Female NPT N/A 0 to 4300 psig0 to 296 bar
6L-WG-FR8-FNS8 N/A Welded Gland to Female NPT N/A 316L Stainless Steel N/A 1/2 in N/A Face Seal with Female Nut N/A 1/2 in N/A Female NPT N/A 0 to 4300 psig0 to 296 bar
6L-WG-FR4-FL4 N/A Welded Gland to Tube Fitting N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal with Female Nut N/A 1/4 in N/A Tube Fitting N/A 0 to 8000 psig0 to 551 bar
6L-WG-FR4-FL6 N/A Welded Gland to Tube Fitting N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal with Female Nut N/A 3/8 in N/A Tube Fitting N/A 0 to 6500 psig0 to 447 bar
6L-WG-FR8-FL8 N/A Welded Gland to Tube Fitting N/A 316L Stainless Steel N/A 1/2 in N/A Face Seal with Female Nut N/A 1/2 in N/A Tube Fitting N/A 0 to 4300 psig0 to 296 bar
6L-WG-FR4 N/A Welded Gland Union N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal with Female Nut N/A 1/4 in N/A Face Seal with Female Nut N/A 0 to 8000 psig0 to 551 bar
6L-WG-FR8 N/A Welded Gland Union N/A 316L Stainless Steel N/A 1/2 in N/A Face Seal with Female Nut N/A 1/2 in N/A Face Seal with Female Nut N/A 0 to 4300 psig0 to 296 bar
6L-LWG-FR4 N/A Female Elbow N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal with Female Nut N/A 1/4 in N/A Face Seal with Female Nut N/A 0 to 8000 psig0 to 551 bar
6L-TWG-FR4 N/A Female Tee N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal with Female Nut N/A 1/4 in N/A Face Seal with Female Nut N/A 0 to 8000 psig0 to 551 bar
6L-CW-HFR4-TB6 N/A High-Flow Body N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal N/A 3/8 in N/A Tube Butt Weld N/A 0 to 3300 psig0 to 227 bar
6L-BW-HFR4-TB6 N/A High-Flow Body N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal N/A 3/8 in N/A Tube Butt Weld N/A 0 to 3300 psig0 to 227 bar
6L-AW-HFR4-TB6 N/A High-Flow Body N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal N/A 3/8 in N/A Tube Weld N/A 0 to 3300 psig0 to 227 bar
6L-LU-HFR4 N/A High-Flow Body N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal N/A 1/4 in N/A Face Seal N/A 0 to 10000 psig0 to 690 bar
6L-TTT-HFR4 N/A High-Flow Body N/A 316L Stainless Steel N/A 1/4 in N/A Face Seal N/A 1/4 in N/A Face Seal N/A 0 to 10000 psig0 to 690 bar
6L-N-HFR4-9.9 N/A High-Flow Nut N/A 316L Stainless Steel N/A 1/4 in N/A Female NPT N/A N/A N/A 0 to 10000 psig0 to 690 bar
6L-N-HFR4-11.7 N/A High-Flow Nut N/A 316L Stainless Steel N/A 1/4 in N/A Female NPT N/A N/A N/A 0 to 10000 psig0 to 690 bar
6L-MN-HFR4 N/A High-Flow Nut N/A 316L Stainless Steel N/A 1/4 in N/A Male NPT N/A N/A N/A 0 to 10000 psig0 to 690 bar
6L-N-FR2 N/A Female Nut N/A 316L Stainless Steel N/A 1/8 in N/A Female NPT N/A N/A N/A 0 to 8000 psig0 to 551 bar
6L-N-FR4 N/A Female Nut N/A 316L Stainless Steel N/A 1/4 in N/A Female NPT N/A N/A N/A 0 to 8000 psig0 to 551 bar
6L-N-FR8 N/A Female Nut N/A 316L Stainless Steel N/A 1/2 in N/A Female NPT N/A N/A N/A 0 to 8000 psig0 to 551 bar
6L-N-FR10 N/A Female Nut N/A 316L Stainless Steel N/A 5/8 in N/A Female NPT N/A N/A N/A 0 to 8000 psig0 to 551 bar
Unit of Measure
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