The selection of reciprocating pressure test pumps in accordance with API 674 standards ensures that equipment meets stringent safety and reliability requirements during pressure test operations in industrial piping systems, pressure vessels, and other pressurized systems. 1. Operating Conditions First, clearly define the operating conditions. Analyze the required working pressure range and flow rate demands of the pressure test system, as these are the core parameters for pump selection. Additionally, medium characteristics are critical—medium type, viscosity, etc., influence pump material selection and design. Consideration must also be given to the continuity or intermittent nature of the operation, which affects design aspects like motor power matching. 2. Performance Parameters Performance parameters serve as the quantitative basis for selection. The API 674 standard specifies clear requirements and test protocols for pressure test pump performance. The rated discharge pressure must be greater than or equal to the maximum test pressure of the system with a safety margin. The rated flow rate must meet the pressure ramp-up speed requirements. The rated power of the drive motor must be determined based on pressure and flow rate, combined with the pump's overall efficiency, to ensure the motor does not overload.   3. Reliability Core assurance lies in long-term stable operation reliability. Pump structural design must possess sufficient strength and rigidity to withstand high-pressure alternating loads and reduce fatigue damage risks. Seal performance is critical, with lubrication and cooling systems designed to ensure no significant leakage. Wear parts should feature excellent interchangeability and extended replacement cycles to facilitate maintenance and minimize downtime. 4. Safety Protection Safety protection is paramount, with strict requirements outlined in the API 674 standard. Pumps must be equipped with reliable overpressure protection devices. Robust protective covers or shields must be installed at high pressure outlets to prevent media ejection injuries. Motors and control components must comply with electrical safety standards, with additional protection required for special environments. Furthermore, considering media characteristics, corrosion-resistant materials should be selected for pump casings and contact components.   Test pumps serve as vital inspection equipment in industrial applications, falling under the category of high pressure pumps. Elephant Machinery has consistently dedicated itself to advancing reciprocating pump technology across diverse sectors. Our test pumps strictly adhere to all provisions of the API 674 standard and have garnered widespread acclaim.

API 674 (Reciprocating Pumps for Petroleum, Petrochemical, and Natural Gas Industries) is the core reciprocating pump standard established by the American Petroleum Institute. As an authoritative specification for the design, manufacturing, and testing of critical equipment in oil & gas, and petrochemical sectors, it holds significant guiding importance. Elephant Machinery reciprocating pumps are designed in accordance with the third edition of API 674, capable of meeting flow and pressure requirements across diverse application fields.   Elephant Machinery reciprocating pumps are available in two product types: piston pumps and plunger pumps. Power configurations include hydraulic motors, electric motors, and diesel engines. Piston pumps primarily rely on the reciprocating motion of a piston within a cylinder, altering the pump chamber volume to achieve fluid intake and discharge. They are suitable for conveying high-viscosity media containing minor impurities. Plunger pumps operate through reciprocating plunger movement within a bore. Their exceptional sealing performance, achieved through high-precision plunger-bore fit, excels in high pressure, high efficiency applications, enabling precise delivery of clean or mildly corrosive liquids.       Reciprocating pumps comply with API 674 standards, featuring structural designs that meet stringent industrial requirements. They can be equipped with comprehensive monitoring and protection devices, such as pressure and temperature sensors along with overload protection systems. These enable real-time operational monitoring, automatic alarm activation and shutdown during anomalies, enhancing operational safety. For installation and maintenance, the modular design employs standardized core components, enabling easy disassembly and replacement. This reduces maintenance cycles and downtime, saving labor and material costs. Furthermore, customized solutions can be developed for specific industry requirements, such as adjusting pump chamber materials or optimizing pump assembly structures, to adapt to complex industrial scenarios. This provides stable and efficient liquid transfer power support across multiple sectors.   Elephant Machinery continuously integrates cutting-edge international technologies and commits to relentless innovation, producing convenient, reliable, efficient, and intelligent reciprocating pump products for clients across all industries. Whether you require a single pump or a complete pump station, we deliver tailored solutions. For reciprocating pump needs, visit our website (www.elephantmudpump.com) for 24/7 online service.