- Availability & Price
- Search SKU
Filter by attributes
- Body Material
- Configuration
- Connection 2 Size (inch)
- Connection 2 Style
- Connection 3 Size (inch)
- Connection 3 Style
- Connection 4 Size (inch)
- Connection 4 Style
- Connection Size (inch)
- Connection Style
Filter by manufacturer
O-ring Face Seal Fitting (sizes up to 3/4 inch) – UltraSeal™
*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.
Parker Veriflow UltraSeal™ fittings are intended for use in high-purity positive pressure and vacuum applications, including gas distribution lines, piping tube systems, and gas boxes. They are highly compact and allow for quick assembly in tight tube welded systems.
UltraSeal™ fittings’ o-ring seal design provides excellent resistance to vibration and thermocycling, and eliminates turbulence in entrapment zones. Fitting couplings form a helium leak-tight seal when the face of the gland makes full metal-to-metal contact with the face of the body, compressing the o-ring in the body groove. The gland face and body o-ring groove are precision machined to accept either metallic (stainless steel) or synthetic o-ring seals. The bore diameter of body and gland are matched in all sizes, thereby eliminating intrusion of the gasket and providing a smoother flow path.
UltraSeal fitting components are available in standard 316L, 316L VAR, and 316L VIM/VAR stainless steels and can be supplied with extremely low Ra internal surface finishes or electropolish to meet the requirements of high purity tubing systems.
All fittings are assembled in a class 100 cleanroom and validated per Federal Standard 209E.
They are helium leak tested using a mass spectrometer to ensure performance and reliability in demanding industrial applications where process cleanliness is critical. Temperature ratings are governed by the choice of o-ring seal material.
Markets:
• Analytical Laboratory
• Pharmaceutical
• BioPharm
• Aerospace
• Industrial
Applications:
• Corrosive and specialty gases
• Gas Boxes
• Valve Manifold Boxes (VMB)
• Tubing Systems
Features/Benefits:
• Leak rate: ≤ 1 x 10-9 STD scc/sec He
• Operating temperature range 350° - +1000°F (-212° to +538° C) for stainless steel o-ring seal
• Highly compact design
• Easy assembly
• A positive seal is achieved by advancing the nut no less than 1/4 turn from finger-tight position
• Bore diameter of body and gland are matched in all sizes, providing a smoother flow path
• No axial clearance is needed to remove components from a system
• Eliminates turbulence and dead zones within the fitting
• Available with stainless steel or nickel gaskets
Read More...UltraSeal™ fittings’ o-ring seal design provides excellent resistance to vibration and thermocycling, and eliminates turbulence in entrapment zones. Fitting couplings form a helium leak-tight seal when the face of the gland makes full metal-to-metal contact with the face of the body, compressing the o-ring in the body groove. The gland face and body o-ring groove are precision machined to accept either metallic (stainless steel) or synthetic o-ring seals. The bore diameter of body and gland are matched in all sizes, thereby eliminating intrusion of the gasket and providing a smoother flow path.
UltraSeal fitting components are available in standard 316L, 316L VAR, and 316L VIM/VAR stainless steels and can be supplied with extremely low Ra internal surface finishes or electropolish to meet the requirements of high purity tubing systems.
All fittings are assembled in a class 100 cleanroom and validated per Federal Standard 209E.
They are helium leak tested using a mass spectrometer to ensure performance and reliability in demanding industrial applications where process cleanliness is critical. Temperature ratings are governed by the choice of o-ring seal material.
Markets:
• Analytical Laboratory
• Pharmaceutical
• BioPharm
• Aerospace
• Industrial
Applications:
• Corrosive and specialty gases
• Gas Boxes
• Valve Manifold Boxes (VMB)
• Tubing Systems
Features/Benefits:
• Leak rate: ≤ 1 x 10-9 STD scc/sec He
• Operating temperature range 350° - +1000°F (-212° to +538° C) for stainless steel o-ring seal
• Highly compact design
• Easy assembly
• A positive seal is achieved by advancing the nut no less than 1/4 turn from finger-tight position
• Bore diameter of body and gland are matched in all sizes, providing a smoother flow path
• No axial clearance is needed to remove components from a system
• Eliminates turbulence and dead zones within the fitting
• Available with stainless steel or nickel gaskets
| Action | Part No. | Availability | Partner Available | Price | Body Material | Leak Rate | Connection 2 Size | Pressure Rating | Operating Temperature | Division | Connection Size | Connection Style | Connection 4 Size (inch) | Connection 4 Style | Body Material | Connection 3 Style | Connection 2 Style | Connection 3 Size (inch) | Configuration | Connection Size (inch) | Connection 2 Size (inch) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8-8 QHBZ-SS | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | UltraSeal Body | NA | NA | SS 316 | na | CPI™ | NA | UltraSeal to Compression Tube Union | 1/2" | 1/2" | ||
| 8-8 QHLZ-SS | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | UltraSeal Body | NA | NA | SS 316 | na | A-Lok® | NA | UltraSeal to Compression Tube Union | 1/2" | 1/2" | ||
| 8-8 QHM-SS .049 | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | UltraSeal Body | NA | NA | SS 316 | na | Tube Buttweld | NA | UltraSeal Body to MiniButtweld | 1/2" | 1/2" | ||
| 8-8 QHW-SS | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) psi | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) °F | Veriflo Division | up to 3/4 in. | UltraSeal Body | NA | NA | SS 316 | na | Socket Weld | NA | UltraSeal to Socket Weld Connector | 1/2" | 1/2" | ||
| 8-8 QHW-SSR | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | UltraSeal Body | NA | NA | 316L VAR | na | Socket Weld | NA | UltraSeal to Socket Weld Connector | 1/2" | 1/2" | ||
| 8-8 QHY-SS | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | UltraSeal Body | NA | NA | SS 316 | na | Automatic Tube Buttweld | NA | UltraSeal to Automatic Buttweld Connector | 1/2" | 1/2" | ||
| 8-8 VHQ-SS | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | UltraSeal Body | NA | NA | SS 316 | na | Male VacuSeal™ | NA | UltraSeal to VacuSeal | 1/2" | 1/2" | ||
| 8-8 WBQ-SS | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) psi | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) °F | Veriflo Division | up to 3/4 in. | UltraSeal Body | NA | NA | SS 316 | na | UltraSeal Bulkhead Body | NA | UltraSeal to Bulkhead Connector | 1/2" | 1/2" | ||
| 8-8 YH2BQ-SS | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | UltraSeal Bulkhead Body | NA | NA | SS 316 | na | Automatic Tube Buttweld | NA | UltraSeal Bulkhead to Automatic Buttweld Connector | 1/2" | 1/2" | ||
| 8-8-8 JQ-SS | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) psi | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) °F | Veriflo Division | up to 3/4 in. | UltraSeal Body | NA | NA | SS 316 | UltraSeal Body | UltraSeal Body | 1/2" | UltraSeal Union Tee | 1/2" | 1/2" | ||
| 8QO-SS | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | na | NA | NA | 321 (Sliver Plated) | na | na | NA | UltraSeal O-Rings | 1/2" | NA | ||
| 8QO-SS-NIC | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | na | NA | NA | 321 (Nickel Plated) | na | na | NA | UltraSeal O-Rings | 1/2" | NA | ||
| 8QO-TE | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | na | NA | NA | PTFE | na | na | NA | UltraSeal O-Rings | 1/2" | NA | ||
| 8QO-VI | Quote Required | TBD | Glands, Bodies, Nuts: 316, 316L, 316L VAR, 316L VIM/VAR Stainless Steel <br/>O-rings: 321 Stainless steel, PTFE, Flourocarbon | 1E-9 cc/sec Helium | Weld-Lok Socket, Automatic Tube Buttweld, Tube Buttweld, CPI™ Tube Stub , A-lok®, Socket Weld, NPT, Straight Thread | up to 10,000 (689 bar) | O-ring Material:<br/> 321 SST: -350 to 400 (-212 to 538°C)<br/> Flourocarbon: -15 to 400 ( -26 to 204°C)<br/> PTFE: -50 to 400 (-46 to 204°C) | Veriflo Division | up to 3/4 in. | na | NA | NA | Fluorocarbon | na | na | NA | UltraSeal O-Rings | 1/2" | NA |
