DongSu QST air-driven hydrostatic test units use compressed air to power the pressure-test circuit for BOP stack testing. Pump stall behaviour supports pressure holding. QST-J configurations offer chart recording; pressure capability and required air supply depend on the model.

Please provide the required dimensions, service conditions, connections, quantity and delivery destination for technical review and a project-specific quotation. Listed inventory: 1000 units; model-specific availability and delivery require confirmation.

Official DongSu product specifications: https://bopctrl.com/product/pneumatic-bop-pressure-test-unit/