Description
ISR Shearing Глухая плашка
Interlocking Срезная плашка (ISR) is available for the U Type ПВО line. The ISR rams provide an improved shearing capacity
alternative to the standard SBR rams, and should only be used when the standard rams cannot handle the desired
shearing load. Since the geometry of the ISR ram incorporates a “V” shape and is designed as wide as possible, it can
shear multiple strings and drill pipe as large as 6-5/8” O.D. Also, ISR Rams do not have to fold over the lower fish. This
means less force is required to shear and, by leaving the fish open, kill mud can be pumped down the severed drill
string. The interlocking mechanism incorporated in the ISR means that these rams can be utilized in an oversized cavity
without fear of a leak at low wellbore pressures.

| U and UM ПВО ISR Shearing Глухая плашка | ||||||
|---|---|---|---|---|---|---|
| ПВО Bore Size and Working Pressure (psi) |
Description and Item Number | |||||
| 2-7 Верхний Ram Subassy |
2 Корпус |
3 Side Пакер |
4 Side Пакер |
5 Top Уплотнение |
6 Blade Уплотнение |
|
| 13-5/8″ 3,000, 5,000 and 10,000 * |
2164775-03 | 2164773-01 | 2010985-01 | 2010985-02 | 645033-01-00-01 | 2010986-01 |
| 11” 15,000 | 2056941-01 | 2056944-01 | 2056950-01 | 2056951-01 | 2056951-02 | 2056946-01 |
| ПВО Bore Size and Working Pressure (psi) |
Description and Item Number | |||||
| 7 Blade Уплотнение |
9-12 Нижний Ram Subassy |
9 Корпус |
10 Side Пакер |
11 Side Пакер |
12 Top Уплотнение |
|
| 13-5/8″ 3,000, 5,000 and 10,000 * |
2010986-02 | 2164776-03 | 2164774-01 | 2010985-01 | 2010985-02 | 645033-01-00-01 |
| 11” 15,000 | 2056946-02 | 2056942-01 | 2056945-01 | 2056952-01 | 2056953-01 | 2056951-02 |