The internal gear pump market size was valued at US$ 2.9 billion in 2024 and is expected to reach US$ 4.0 billion by 2031; it is estimated to record a CAGR of 5.2% from 2025 to 2031.

The internal gear pump market is segmented into five major regions-North America, Europe, Asia Pacific (APAC), the Middle East & Africa (MEA), and South & Central America. Asia Pacific dominated the market in 2024, followed by the Middle East and Africa and North America, respectively.

In chemical processing, oil and gas, marine, and food and beverage industries, efficient fluid handling and energy-saving pumps are critical. China accounted for 55% of the global capacity for acetic acid, 50% of carbon black capacity, and 45% of titanium dioxide capacity in 2023. As per the India Brand Equity Foundation (IBEF), India ranks sixth and third among the largest producers of chemicals in the world and Asia, respectively. Currently, the Indian chemical industry is valued at US$ 220 billion and is predicted to grow to US$ 300 billion by 2030 and US$ 1 trillion by 2040. China's growing chemical manufacturing and oil & gas sectors drive the adoption of steel and cast-iron internal gear pumps. Additionally, the governments across countries in APAC support automation and sustainability. The market also sees innovations in engineering to reduce cavitation and maintenance, further supporting demand for high-performance, durable pumps.

Internal Gear Pump Market Future Trend: Vibration sensors embedded in gear housings transmit real-time data via LoRaWAN to cloud dashboards, enabling 30% unplanned outage reductions in remote LNG trains through anomaly detection before failures cascade globally. Temperature probes on discharge flanges paired with flow meters predict idler wear from delta-P shifts, scheduling parts before catastrophic failure in Saudi refineries for maximum uptime. Acoustic emission monitoring detects gear mesh faults at 0.1mm clearance loss, alerting operators in unmanned Algerian fields via satellite links. Cloud-connected platforms aggregate fleet performance across 500+ chemical plant pumps, optimizing VFD setpoints for 15% energy savings via machine learning algorithms trained on operational data.

OEMs bundle pumps with SCADA interfaces supporting OPC-UA protocols for IIoT integration into Siemens or Rockwell plant historians across enterprises. AI failure prediction models trained on 10-year service datasets target aging North American assets, quoting 25% service contract uplift through proactive interventions. Mobile apps deliver augmented reality overlays for field techs, aligning replacement gears with laser precision, reducing installation errors. Edge computing modules process data locally during connectivity gaps in offshore platforms. These smart IoT and predictive maintenance integrations are expected to emerge as key trends in the market in the future.

Bosch Rexroth AG, Danfoss AS, Bucher Hydraulics GmbH, HYDAC International GmbH, Eaton Corporation plc, Viking Pump, Inc., Daido Machinery Corporation, and HYDROMA, Ltd. are among the key players profiled during this market study. Several other essential market players were also studied and analyzed to get a holistic view of the global internal gear pump market and its ecosystem.

The overall internal gear pump market size has been derived using both primary and secondary sources. Exhaustive secondary research has been conducted using internal and external sources to obtain qualitative and quantitative information related to the internal gear pump market size. The process also helps obtain an overview and forecast of the market with respect to all the market segments. Also, multiple primary interviews have been conducted with industry participants to validate the data and gain analytical insights. This process includes industry experts such as VPs, business development managers, market intelligence managers, and national sales managers, along with external consultants such as valuation experts, research analysts, and key opinion leaders specializing in the internal gear pump market.