| 摘要 |
FIELD: oil and gas industry. ^ SUBSTANCE: receiving chamber of suction-type sampler includes tight tank consisting of calibrated cylinder on one end of which body of shutoff valve is fixed, and on the other end of which a steady bush is fixed, and dividing piston installed between them. In the valve body there installed is hydraulic booster with through channel. Shutoff valve has tight axial channel and is equipped with a piston and transit tube. ^ EFFECT: increasing a through gap for non-return valve of the chamber, which corresponds to improvement of its closing reliability, possibility of controlling the open state of the valve; providing the possibility of taking several simultaneous samples. ^ 1 dwg, 1 tbl |
