Thorburn Flex is a proven industry leader in the cost-effective design, development, manufacture and supply of ultra-high quality custom flexible piping, ducting and connector systems.
Thorburn flex is the only company which possess a nuclear licence for design and manufacture in the USA, Canada, Europe and China.
Operating under a strategy of global presence in niche application found in Power Generating, Petrochemical & Metal Processing industries, Thorburn Flex is structured to consistently meet and exceed customers’ expectations in quality, value and service.
Quick Couplings
Quick couplings are mechanical connectors designed for fast, tool-free connection and disconnection of fluid or gas lines without leaks or spills.
Thorburn Flex offers unmatched capabilities and expertise in applications engineering, design development and manufacture of custom flexible piping systems for PHWR/PWR nuclear power plants. Operating under a strategy of global presence, Thorburn Flex has structured and developed a specific nuclear business unit used to service this niche market sector.
Given below are different types of quick couplings Thorburn offers:
1. NT71 Dry Break Quick Coupling System
Product Description:
- Minimum Air inclusion and Fluid loss during disconnection
- Easy operation, low pressure connections
- Superior flow and reduced pressure drop
- Standard material: 316 SS, Sizes: from 1/4” to 2”
- Plug body made of SA564 Gr.630 Hardened Material
- Simple Maintenance & Spare part availability
- Special seals available for difficult media
- Design pressures for 1” size 3,000 PSI (184 BAR)
- CRN ASME Section III Sub Section ND Class 3 NFH-3-4284.5 (Coupler) NFH-3-4283.5 (Plug).
2. NT72 – Double Shut-Off Valve Quick Couplings
Advantages:
- High Flow – Low pressure drop
- Sizes 1/4” to 3”
- Proven ball-lock mechanism provides positive connections
- Poppet style double shut-off
- Half the pressure drop and twice the flow rate of the NQCH Series
- Sockets & Plugs conform and meet ISO 7241 Series B Couplings (including two way shut-off & nonvalved series)
- Can be designed, manufactured and registered (C/W CRN) to ASME B31.1, B51, CSA N285.2 and ASME Section III, Class 2, 3 & 6 Service
- Optional non-valved (straight through) design available
3. NT82 Straight Through System
Thorburn’s NT82 Series straight-through quick couplings are designed for use where minimum pressure drop is required and valving is not needed.
Advantages:
- High Flow – Low pressure drop
- Sizes 1/4” to 2”
- Proven ball-lock mechanism provides positive connections
- Sockets and plugs interchangeable with other manufacturers such as Hansen ST Non-Valved Straight Through Series
- Can be designed, manufactured and registered (C/W CRN) to ASME B31.1, B51, CSA N285.2 and ASME Section III, Class 2, 3 & 6 Service
- Standard Material – Brass (ASTM B16/B21) & 316 Stainless Steel
4. NT803 Heavy Duty Hydraulic Rebuildable Live Swivels
Product Description:
- Available in sizes 1/4” through 2”
- Rated to 5000 psi working pressures
- Manufactured from hardened ASME SA564 Material
- Chrome ball bearings for long life
- Larger ball bearings for more bearing area
- VitonTM seals standard
- Burnished barrel bores seals standard
- Lower rotating torque
- Withstands heavy loads
- Absorbs torsional piping loads
- No snap ring to blow off
- Rebuilding kits available
- Swivel design prevents twisting of hose during operation.
5. NT92 Omega™ Easy to Operate
The NT92 Omega™ Series Dry Break Quick Coupling is specifically designed to prevent radioactive resin valve blockage spillage during the disconnecting process. This unique coupling consist of a female end having a concave ball valve and a male end having a convex ball valve that are machined to eliminate any spaces between the ball valves. Added to the design is a cavity filler and a revolutionary sealing process. The seal Is in tension not compressed yielding a superior seal with greater strength and longer cycle life. Thorburn’s NT92 Omega™ coupling provides the solution to resin blocking poppet type valve quick couplings which spill radioactive materials.
NT92 Omega™ Easy to Operate
The NT92 Omega™ coupling has an easy turn action to connect and start the product flow. The valves will not open until both coupling halves are connected properly. The coupling halves are first aligned and then connected with a push, followed by a quarter turn. There are no threads to damage by over tightening and no failure prone cam and groove latch connections to secure. The coupling halves are independent shut off ball valves that are controlled manually by rotating the valve handles in sequence providing unrestricted high flow in either direction.
NT92 Omega™ Sealing Technology
Seals under temperature & pressure fluctuations Cavity FillerPrevents flow accumulation between ball valve and coupling body. Reduces spillage when disconnecting and prevents solids from being trapped between the rotating ball valves. Ball Valve Seal- Flexible arch shaped ball valve seal provides constant sealing pressure and compensates for machining tolerances. Spring Enhanced O-Ring SealPuts constant pressure around the stem and eliminates leaks through the valve handle stem.
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