Overview
The B/W Controls 04126400 electrode plug, designated model 6012-EP1, is a precision component designed for liquid level measurement and control in industrial applications. Featuring a ceramic insulator with glass and copper seal, this plug provides a strong, pressure-tight mechanical mounting for solid rod electrodes. Plugs mount to the holder using a 3/8-18 dryseal (PTF) SAE short pipe thread, making it a standard interface for B/W level control systems.
Key Features
- Ceramic Insulator — ensures reliable electrical isolation and durability in demanding environments
- Pressure-Tight Design — provides secure, leakproof assembly for boiler systems, tanks, and chemical processing
- Glass & Copper Seal — maintains seal integrity under pressure and thermal cycling
- Standard SAE Pipe Thread — 3/8-18 dryseal (PTF) connection for easy installation and replacement
- Type E Holder Compatible — direct fit for B/W type E cast iron or brass electrode holders
- Wire Suspension Capable — works with 6013-CSS wire connectors for flexible electrode configurations
Technical Specifications
| Part Number | 04126400 (6012-EP1) |
| Manufacturer | B/W Controls / Ametek Drexelbrook |
| Product Type | Electrode Plug Assembly |
| Insulator Material | Ceramic |
| Seal Material | Glass & Copper |
| Thread Type | 3/8-18 SAE Dryseal (PTF) |
| Compatible Holders | B/W 6012 Series (Type E) |
| Holder Variations | Cast Iron, Brass, Stainless Steel |
Typical Applications
- Boiler Feed & Condensate Return — pressure-tight design prevents leakage in high-temperature systems
- Hydroneumatic Tank Level Control — reliable sensing for pressurized storage vessels
- Chemical Processing Equipment — durable ceramic insulation resists corrosive environments
- Industrial Pump Control — point-level sensing for automatic pump start/stop logic
- Water Treatment & Processing — standard component in B/W level control relay systems
Compatibility & Replacements
Compatible With
- B/W 6012 Series Electrode Holders (Type E) — cast iron, brass, or stainless steel variants
- B/W Control Relay systems for liquid level sensing
- Solid rod electrode assemblies (standard configuration)
- Wire suspension electrodes (when used with B/W 6013-CSS connector)
- B/W complete level control systems for point-level detection
Replaces / Drop-In Replacement For
- B/W 6012-EP1 electrode plug
- Ametek Drexelbrook electrode plug assemblies for 6012 series holders
- Legacy B/W level sensor electrode components (verify holder compatibility)
Works With
- B/W liquid level control relay systems
- Type E pressure-tight electrode holders from B/W Controls
- Standard 3/8-18 SAE pipe thread systems and fittings
- Solid rod and wire suspension electrode configurations
- Industrial automation level sensing and pump control circuits









