Description
Bijur Delimon – Meter Unit FJD-4: Extra Fast Flow, Junction Type D
L. Dewitt's SKU #: B3778 | Mfr Part #: B3778The Bijur Delimon B3778 Meter Unit (Type FJD-4) is a precision oil proportioning device for Single Line Resistance (SLR) cyclic lubrication systems. The FJD is a slim-profile junction type machined from 5/16" hex bar stock, designed for thinner junctions with closer hole spacing. Its 1/4-28 NF outlet accommodates the 5/16 hex compression nut (#B3610) and it delivers "Extra Fast" metered oil per cycle.
Regulated Extra Fast Flow
As a FJD-4 model, this unit delivers Extra Fast flow, providing a high-volume oil delivery for the largest or most critically loaded bearing points in the system. Typically specified for oversized journals, large-diameter slides, and applications with extreme load or speed requirements.
Cyclic System Integrity
An integrated 5 lb check valve ensures one-directional oil flow and prevents line drainage between pump cycles. For cyclic lubrication systems only. Not compatible with continuous-flow pumps.
Technical Specifications
| Type Designation | FJD-4 (Junction Type D) |
| Flow Rate | Extra Fast |
| Inlet Thread | 5/16-24 NF Male |
| Outlet Thread | 1/4-28 NF Male (for compression nut #B3610) |
| Hex Size | 5/16" (slim profile) |
| Material | Brass |
Key Features
- Slim 5/16" hex body — fits close-spaced junction holes
- 1/4-28 NF outlet for compression nut #B3610
- 5/16-24 NF inlet mates with standard junctions
- Integrated 5 lb check valve prevents back-drainage
Common Applications
- High-density junction blocks with close hole spacing
- Compact machine tool heads with restricted space
- Systems using Bijur 5/16" hex compression nut (#B3610)
- Installations where FJB/FJC body is too wide
Technical Support & System Design
Replacing an entire system or just a few points? L. Dewitt McCarter, Inc. is your authorized source for Bijur Delimon technical specifications and replacement parts.
Contact Our Technical TeamAdditional Information
Bijur Part Number: |
B3778 |
Thread Type: |
Inch thread - 5 lb check valve |
Type, Location & Mating Parts: |
Junction Type |
Flow Rate: |
Extra Fast |
