Rotary Positive Displacement Pumps Market By Pump Type (Gear Pumps, Screw, Lobe Pumps, Vane Pumps, Peristaltic Pumps, Progressive Cavity Pumps, Others), By Capacity (Small Capacity, Medium Capacity, Large Capacity), By Technology (Energy‑efficient / Smart rotary PD pumps, Materials / Construction Types, Pressure Ratings or Operating Conditions) and By End‑Use Industry (Oil & Gas, Chemicals & Petrochemicals, Water & Wastewater Treatment, Food & Beverage, Pharmaceuticals & Biotechnology, Power Generation, Mining & Minerals Processing, Pulp & Paper and Other Manufacturing), By Industry Analysis, Size, Share, Growth, Trends, and Forecasts 2026-2033