Riello Bypass Plug 20029299 Mectron/ Rdb Screw 2623539

CAN BE USED AS PUMP SECURING GRUB SCREW ON SIMEL MOTORS GRANT RBS56P BOULTER WORCESTER TRIANCO POTTERTON MYSON

Riello bypass plug (part no. 20029299) with securing screw (part no. 2623539), designed for use in Riello Mectron and RDB series burners. Used to configure fuel pumps for single-line or two-line operation by sealing off the bypass return port.

Features & Technical Specifications:
• Bypass Plug – 20029299
– Made from high-grade, heat-resistant plastic
– Blanks off the bypass port on Riello oil pumps
– Enables conversion between one-pipe and two-pipe oil supply systems
– Helps maintain correct pump pressure and oil flow

• Securing Screw – 2623539
– Precision-engineered steel screw
– Secures the bypass plug within the pump housing
– Ensures a reliable, vibration-resistant fit during burner operation

Compatibility:
– Riello Mectron series burners
– Riello RDB and RBS burners
– Commonly used in Grant, Worcester, and other oil boiler installations fitted with Riello pumps

Applications:
Essential for burner maintenance, conversions, or new installations. The bypass plug and screw combination is used when reconfiguring oil pumps to operate in single-pipe setups, especially in systems where a return line is not used. Provides safe sealing to prevent oil leakage or pressure loss.