API 674 Standards for Reciprocating Pressure Test Pumps

In the oil and gas industry, pressure test pumps are widely used for strength and leak testing of pipelines, BOPs, and other pressure-containing equipment. Reciprocating pressure test pumps that comply with API 674 improve test data accuracy and serve as a critical safety barrier in high pressure work sites.

1. API 674 Standard

The API 674 standard, developed by the American Petroleum Institute, governs the design, manufacture, performance testing, and safety requirements of reciprocating positive displacement pressure test pumps. It defines key technical indicators such as structural strength, material selection, and sealing performance, and sets systematic requirements for operational stability, overpressure protection, and operation and maintenance — ensuring reliable operation under high pressure, high-risk conditions.

2. Role of API 674 in Pressure Test Pumps

API 674 not only standardizes pump technology but also provides a system-based safety guarantee throughout the equipment lifecycle. By establishing uniform design criteria and performance verification methods, it reduces test errors and safety incidents caused by equipment defects or performance deviations. It specifies requirements for key components such as the fluid end, power end, and safety valves, ensuring durability and response reliability under repeated high pressure shocks — supporting the integrity verification of oil and gas pressure-containing systems.

3. How to Select an API 674-Compliant Pressure Test Pump

• Ensure the pump's rated pressure covers the testing requirements with a safety margin, as per API 674.
• Confirm material compatibility with the test medium.
• Prefer models with automatic pressure relief, overpressure shutdown, and real-time pressure monitoring for operational safety and data traceability.
• Request the manufacturer to provide a complete compliance declaration, performance curves, and third-party test reports for verification against API 674.

Elephant Machinery API 674 pressure test pumps are available in a one-skid, two-pump configuration, capable of meeting the requirements for large-flow, low-pressure rapid filling as well as high pressure/low-pressure hold testing. This configuration, through optimized piping layout and control system integration, enables seamless switching between the filling and hold phases, significantly improving testing efficiency and reducing energy consumption.