JACO Polypropylene Fittings With Stainless Steel Gripper Nut
JACO polypropylene fittings have good chemical resistance and are unaffected by most weak acids and alkalies. The maximum pressure rating for these fittings is 220 PSI. Below 175°F, they have good resistance to organic solvents. They should not be used with oxidants, strong acids, or in continuous sunlight. Polypropylene is a workhorse in the plastics industry. Though polypropylene is similar to high-density polyethylene, it is harder, more durable, and more rigid. The polypropylene is light weight and extremely valuable for high purity applications such as deionized water. The polypropylene used in JACO fittings is 20% glass filled for improved stiffness, and is NSF listed.
The stainless steel gripper nut system used in JACO fittings seals by forcing the gripper nut into the tubing wall to create an interference seal. The stainless steel grippers used in JACO fittings provide additional resistance against tubing pull-out and vibration.