Product Details | Easyflex Product Catalog
Introducing Easyflex Heavy Duty no hub couplings. These couplings feature a clamp, screws, and shield made entirely of stainless steel for maximum reliability and resistance to corrosion. Depending on the size, they are available with either 4 or 6 bands, providing a super tight seal. Sizes ranging from 2″ – 15″ are available to satisfy any type of application.
| Part # | Description | Qty/Box |
| EF-NHC-200HD | 2″ Heavy Duty No-Hub Coupling, 4 Bands | 75 |
| EF-NHC-300HD | 3″ Heavy Duty No-Hub Coupling, 4 Bands | 48 |
| EF-NHC-400HD | 4″ Heavy Duty No-Hub Coupling, 4 Bands | 48 |
| EF-NHC-500HD | 5″ Heavy Duty No-Hub Coupling, 6 Bands | 15 |
| EF-NHC-600HD | 6″ Heavy Duty No-Hub Coupling, 6 Bands | 15 |
| EF-NHC-800HD | 8″ Heavy Duty No-Hub Coupling, 6 Bands | 15 |
| EF-NHC-1000HD | 10″ Heavy Duty No-Hub Coupling, 6 Bands | 12 |
| EF-NHC-1200HD | 12″ Heavy Duty No-Hub Coupling, 6 Bands | 8 |
| EF-NHC-1500HD | 15″ Heavy Duty No-Hub Coupling, 6 Bands | 4 |
| Clamp | Stainless Steel 301 | ||||
| Housing | Stainless Steel 301 | ||||
| Screw | Stainless Steel 305 | ||||
| Shield | Stainless Steel 301 | ||||
| Gasket | Elastomeric compound conforming to ASTM C564 | ||||
| Installation Torque | 60 in/lbs |
| Test | Physical Tests – Minimum or Maximum Requirements | ASTM | |||||||
| Tensile Strength | 1500 psi minimum | D412 | |||||||
| Elongation | 250 minimum | D412 | |||||||
| Durometer | 70 ± 5 @ 76°F ± 5°F | D2240 | |||||||
| Accelerated Aging | 15% maximum tensile and 20% maximum elongation deterioration, 10 points maximum increase in hardness, all determinations after oven aging for 96 hours at 158°F | D573 | |||||||
| Compression Set | 25% maximum after 22 hours @ 158°F | D395 | |||||||
| Oil Immersion | 80% maximum volume change after immersion in IRM 903 for 70 hours @ 212°F | D471 | |||||||
| Ozone Cracking | No visible cracking @ 2 times magnification of the gasket after 100 hours exposure in 1.5 ppm ozone concentration at 100°F. Testing and inspection to be on gasket which is loop mounted to give approximately 20% elongation of outer surface | D1149 | |||||||
| Tear Resistance | 150 lbs minimum per inch of thickness | D624 | |||||||
| Water Absorption | 20% maximum by weight after 7 days at 158°F | D471 | |||||||
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