PSS-521B Dual-Pump Skid

This product is designed for oilfield operations such as acidizing and fracturing, well cleaning and sand flushing, and plug removal. It is powered by an engine that drives a TPH400 plunger pump via a 4700 transmission gearbox and drive shaft, while a power take‑off unit also powers a hydraulic oil pump to supply energy to a centrifugal pump. Local and remote control of one or multiple acidizing units can be implemented on site.
PSS-521B Dual-Pump Skid
Product Specifications
 

Engine

CAT C15 540hp
Optional CAT C13 475 hp

Transmission box

ALLISON 4700

Plunger pump

TPH400 (3 3/8" / 4", 4 1/2" optional)

Perfusion centrifugal pump

SERVA 5X6 (one unit per plunger pump)

Control system

Manual operation / Automatic control (remote control system optional)

Maximum discharge pressure

103.4 MPa (15,000 psi)

Maximum discharge displacement

1.52+1.52 m³/min (TPH 400 4 1/2”)

Approximate size:

8000mm X 2550mm X 3200mm

Net weight approximately

23,000 kg

Operating temperature

-20℃~﹢50℃

 

 

Product Features

 

  • IoT System: By integrating the IoT system with on-site equipment, this solution enables asset and equipment localization, visualization of instrument curves, standardization of maintenance and upkeep procedures, and traceability of fault information. It progressively achieves visibility of equipment data, trackability of asset movement, verifiability of operational status, synchronization between physical and digital assets, and seamless integration of contextual insights, thereby optimizing equipment management, maintenance planning, spare parts control, and the formulation of energy‑saving strategies to minimize downtime.
  • Equipped with a data acquisition system;
  • The manifold and valves are made of corrosion-resistant materials and can withstand hydrochloric acid at concentrations of up to 35%.
  • Configure an SPS leak-free packing system for the plunger pump;
  • An optional external fuel‑powered heater is available, suitable for operation in extremely cold regions during winter. Prior to winter operations, the engine coolant is forcibly circulated and heated until the engine block temperature reaches the required level for starting.

 

 PSS-521B Dual-Pump Skid

PSS-521B Dual-Pump Skid