Rubber Check Balls
Scope of use: Designed as an inflatable product from rubber plates; intended to seal sewer pipelines, gas and oil and water networks during their cleaning and repair.
The material used in production: Oil and petrol resistant rubber compound based on synthetic nitrile rubber (SNR).
Performance: made in “Moderately Cold Climate” climatic design, category 1.1., according to GOST 15150 and is functional at temperatures from – 25º C to 30º C
~ Basic Parameters:
| Name of the ball |
Ball diameter, mm.
Max. deviation ± 10
|
Tube length, mm. |
| ЗШ – 200 | 200 | 8000 ±200 |
| ЗШ – 300 | 300 | |
| ЗШ – 400 | 400 | |
| ЗШ – 500 | 500 | |
| ЗШ – 700 | 700 | |
| ЗШ – 800 | 800 | |
| ЗШ – 900 | 900 | |
| ЗШ – 1000 | 1000 | |
| ЗШ – 1200 | 1200 | |
| ЗШ – 1400 | 1400 |
Note. In agreement with the customer other dimensions are also available.
~ Physical and Mechanical Parameters:
| Name of Indicator | Normal Indicator for the Rubber |
| Tensile strength, MPa, not less than | 7,0 |
| Elongation at break,%, not less than | 200 |
| The weight change of the sample after exposure to a mixture of isooctane and toluene in a ratio of (7: 3) at a temperature (23 ± 1) ° C for (24 ± 0.5) h,%, no more than | 35 |
| Shore hardness A, усл. ед. в пределах | 65-80 |
Balls depending on the diameter of the ball must be sealed at a pressure of:
| 8000 ± 500 Pа | from Ø 100-300 mm inclusively |
| 5000 ± 500 Pа | from Ø 400-800 mm inclusively |
| 3000 ± 500 Pа | from Ø 900-1400 mm inclusively |
Balls are designed for single use.
Shelf life: 2 years from date of manufacture.
After expiration of the shelf life it is not allowed to use the balls in the works related to explosive technologies. After transporting and storaging at temperatures below zero balls should be kept at a temperature of (13 ± 5) ° C for at least 24 hours before the use.
