Send and receive ball tube size of general DN150-DN1400, the ball can basically be divided into three types, type A/B/C, pressure design for 1.0MPa-25mpa. Tube, material and pressure must meet the requirements of design and media. Can choose the clamp type, ring type, buckle type and other types of fast opening blind plate, has the advantages of reasonable structure, good sealing performance, rapid opening and closing, convenient operation, safe and reliable. At the same time, buckle type fast opening blind plate has convenient and safe self-locking opening (blind plate locking, anti vibration, anti loose, open two times relief) performance, make the operation more simple and safe; clamp type quick opening blind plate except the safety self-locking, but also to achieve the blind plate locking. The sealing ring and without relative rotation between the sealing surface, the sealing ring is not easy to damage, so as to better protect the sealing system; the lock ring and the clamp type fast opening blind plate, has larger bearing capacity and good performance. Widely used in petroleum, natural gas and other industries, is the need to quickly open and close the pipe or equipment, the most ideal accessories on the device. Technical requirements for product design and manufacturing:

1, suitable for diameter DN100 - 1000.

2, design pressure 1.6~10Mpa.

4, all flange HG/T standard.

5, the working temperature to 70 DEG C: 19.