WR Insert ring
Insert Ring, inserted in a tube, prevents the tube from contracting.
NA/NB Nylon tube
Nylon Tube, Fine Pressure, Wear, and Cold Resistance. NB Tube for Hot Water and Thermal Oil. Excellent Bending Fatigue Resistance. Stably Usable for Long Time. 12 Color Selections for NB Tube. 9 Color Selections for NA Tube. Fluid medium: Air, water, heat medium oil (condition) Max. operasting pressure: 2 MPa