Description
Southwest’s RnR Поршень
Southwest’s RnR Поршень is a renewable rubber piston in that the rubber on this non-bonded piston can be replaced by a new piston rubber once the old one has reached its usable life. The proprietary blend of rubber and fabric used in the RnR piston resists the pinching and extrusion that commonly occurs in the heel of the piston. The use of synthetic fabric in the Southwest RnR piston virtually eliminates the loss of heel strength, caused by water absorption allowing the piston to achieve a higher level of performance compared to competing designs.
The RnR piston is suitable for water and some synthetic- based drilling muds.
ype: Склеенный pistons, Replaceable pistons
Материал of piston hub: forged by 45# steel or 40Cr with hardening and tempering
Материал of piston cup: urethane NBR rubber
Surface treatment of piston hub: by phosphating and by Oxidizing
Размер: 3 ~ 8 in
| SIZE | COMPLETE PISTON PART NO. | END PLATE PART NO. | PISTON RUBBER PART NO. | PISTON CORE PART NO. | PISTON O- RING PART NO. | PISTON BUSHING PART NO. | SNAP RING PART NO. |
|---|---|---|---|---|---|---|---|
| 4″ | 40KH01-4 | 3440K | 40K | 40KH01-4C | 568-225 | 2932 | K921129 |
| 4 1/2″ | 44KH01-4 | 4244K | 44K | 44KH01-4C | 568-225 | 2932 | |
| 4 1/2″ | 44BH01-4 | 4446B | 44B | 44BH01-4C | 568-225 | 2932 | B921129 |
| 5″ | 50BH01-4 | 5052B | 50B | 50BH01-4C | 568-225 | 2932 | |
| 5 1/2″ | 54BH01-4 | 54B | 54BH01-4C | 568-225 | 2932 | ||
| 6″ | 60BH01-4 | 5456B | 60B | 60BH01-4C | 568-225 | 2932 | |
| 6 1/4″ | 62BH01-4 | 6200B | 62B | 62BH01-4C | 568-225 | 2932 | |
| 6 1/2″ | 64LH01-4 | 6466L | 64L | 64LH01-4C | 568-225 | 2932 | L921129 |
| 6 3/4″ | 66LH01-4 | 66L | 66LH01-4C | 568-225 | 2932 | ||
| 7″ | 70LH01-4 | 7072L | 70L | 70LH01-4C | 568-225 | 2932 |
