Jining Donghong Machinery Co., Ltd
Quality supplier of drilling rig parts for Bomco,Lanzhou LS, Honghua, Sj petro, Rg Petro, Beijing BPM, Shenkai, Kingdream, CCDC

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Product Detail
QSY70DTY Pneumatic Pressure Test Device 
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QSY70DTY pneumatic pressure test devices are widely applicable to all kinds of the test and inspection for pressure endurance and airtightness of high pressure (extra- high pressure) vessel and equipment such as connecting pieces, valve bodies, hoses, hard tubes and pressure vessels, especially applicable to the pressure test of the blowout-prevention equipment for well mouth used in oil and gas well drilling and recovering project as well as connecting manifold and valve pieces, and are also applicable as hydraulic pressure testing tool by scientific research department, industry department and chemical engineering department .

The main features of QSY70DTY pneumatic pressure test devices are as follows:

①Working mediums including water or oil; wide application scope;

②Small in volume and light in weight;

③Advanced structure, simple operation, flexible movement and convenient for    maintenance;

④Major spare parts adopt import components, being safety and reliable;

⑤Under low pressure, features large flow rate and quick increase of pressure;while under   high pressure, features small flow rate and high pressure;

⑥With the dual pump and dual control function, it can conduct autonomous switchover between high pressure and low pressure.

⑦Being equipped with circle diagram recording instrument, it may conduct continuous recording of the variation in pressure while displaying pressure.



Air supply safety valve pressure(MPa)


System maximum working pressure(MPa)



Bursting pressure(MPa)


Liquid-gas ratio of low-pressure pump


Liquid-gas ratio of high-pressure pump


Displacement of low-pressure pump

66 ml / stroke

Displacement of high- pressure pump

6.6 ml / stroke