The DPSB type stuffing boxes ordered by our customer have finished production and have been assembled. The bottom thread of the stuffing box is 3” LP, used for 1-1/4” polished rods. Their working pressure is 1500psi, and the operating temperature is 120°C. Our company's stuffing boxes have gradually been accepted by our customers in many countries, and the order quantity has been increasing year by year.
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