DREWFAB DF1133-100 “Bernoulli Convergenator” Jet Drive Pop-Off Valve | Lightweight, Serviceable, No-Machining Design

Introducing the DREWFAB “Bernoulli Convergenator” Jet Drive Pop-Off Valve — a revolutionary new approach to jet-drive pressure management. Weighing only 6.6 lbs fully assembled and standing 9½″ tall with a 5″ OD tube, this valve delivers performance, reliability, and serviceability never before seen in the industry.

Designed around precision engineering and simplicity, the Bernoulli Convergenator requires no machining for installation. (Berkeley suction housings only need a small internal nub removed from the inspection cover.) It meets all major sanctioning-body minimum opening requirements while maintaining a compact footprint and low overall weight.

Key Features

• Direct bolt-on installation – no suction-housing machining required

• Meets sanctioning-body minimum opening specs

• Piston-sealed system – the piston seals to the housing, reducing bolt load from suction pressure

• Engine-style piston design – prevents rocking or seizing within the pop-off tube

• Internal pressure retention – eliminates external O-ring wear and tearing

• Completely serviceable from the top – disassemble without removing from jet drive

• Type II anodized finish – available in black or clear

• Integrated hold-down base ring – no separate clamp pieces needed

• #6 ORB port actuation – single pneumatic connection for on/off operation

• Fully compatible with pneumatic or electronic control systems

Technical Overview

• Weight: 6.6 lbs (fully assembled)

• Height: 9.5″

• Tube OD: 5″

• Seal: National 470898-style gasket between valve and suction housing

• Material: Billet aluminum, Type II anodized finish

• Control Port: #6 ORB (O-ring boss)

• Serviceability: Top-side disassembly; single O-ring wear item

Compatibility

• Berkeley 2-bolt (small nub must be ground off inspection cover)

• Dominator 3-bolt

• Jett Performance 4-bolt

Pistons and hold-down geometry are built to order for your specific suction housing. This ensures a perfect seal and fit every time — please allow slight lead time for machining and packaging.

Optional Vacuum Retract Kit

Need to open the valve in the pits? Use our vacuum generator kit (sold separately). Attach compressed air (90 + PSI) to one side to generate vacuum on the other — retracts the piston in under 2 seconds. You can also manually unbolt and push the piston up by hand for quick inspection.

Features in Use

• Simplifies pneumatic pop-off control — single solenoid valve operation

• Reduces bolt stress and maintenance requirements

• Fully serviceable and rebuildable

• Compact form factor with race-ready durability