Pedrollo Pump Diffuser Venturi JSW 10, 12, 15, JSWm (121007X, 121053H)

Diffuser (121007X) with Venturi tube (121053H) for Pedrollo JSW 10 / 12 / 15 pumps

Original ejector assembly (diffuser + Venturi tube) for repairing the hydraulic part of Pedrollo JSW series surface self-priming pumps and pumping stations. This assembly is responsible for creating a low-pressure area, accelerating the liquid, and ensuring stable self-priming of water from depths of up to 9 meters.

The part is made of high-strength, wear-resistant technopolymer (Noryl / PPO), resistant to sand abrasion, cavitation, and corrosion, which guarantees a long service life and stable pressure-flow characteristics of the equipment.

Main advantages and features:

• High wear resistance: Durable engineering plastic is resistant to water hammer, temperature changes, and mechanical wear from abrasive particles.
• Restoration of factory parameters: Replacing a worn or damaged ejector fully restores the pump's self-priming capability and nominal head.
• Precise geometric match: original Pedrollo kit with factory codes 121007X (diffuser) and 121053H (Venturi tube).
• Ready-to-install assembly: Supplied as a complete unit, which simplifies and speeds up the installation process.

Compatibility and application:

The assembly is used in Pedrollo JSW series surface pumps and pumping stations (models 10, 12, 15) of the following modifications:

• Pedrollo JSW 10: JSWm 10M, JSWm 10MX, JSW 10M, JSW 10MX
• Pedrollo JSW 12: JSWm 12M, JSWm 12MX, JSW 12M, JSW 12MX
• Pedrollo JSW 15: JSWm 15M, JSWm 15MX, JSW 15M, JSW 15MX
• Note: The "m" index indicates a single-phase version (220 V), the "X" index indicates models with a cast iron body of the new series or hydraulic modifications.

Technical specifications:

Package contents:

1. Diffuser 121007X — 1 pc.
2. Venturi tube 121053H — 1 pc.

Pro tip: When replacing the diffuser assembly, be sure to check the condition of the rubber O-rings on the nozzles and the mechanical seal. Apply a thin layer of silicone grease to the O-ring before seating — this will prevent it from pinching and ensure a tight seal. If the pump has been running "dry" (without water), before assembly, be sure to check the impeller (im