Zero-Leak Gold Straight Port Entry Fitting
Replace your standard SAE J514 straight thread fittings, with
our patented Zero-Leak Gold Fittings, and fluid leaks are a problem
of the past. Zero-Leak Gold Fittings feature a taper under the hex
of the fitting that forms a metal to metal seal with the taper
in the SAE J1926 port. A seal that, in conjunction with the
secondary elastomeric
seal, outperforms any standard SAE J514 straight thread fitting.
Zero-Leak Gold Fittings are fully interchangeable with standard SAE J514 straight thread fittings for use in the SAE J1926 port. They're easily assembled with standard tools and methods and feature full 360 degree fitting orientation. Compare Zero-Leak Gold Fittings and you'll see that there is no more reliable and cost effective product available.
Zero-Leak Gold Fittings are also available with JIC and/or ORFS configurations.
Specification drawing of the Zero-Leak Gold Fitting.Comparison of Zero-Leak Gold to SAE J514.
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EPCO warrants that Zero-Leak Gold Fittings will not leak for the lifetime of the product. This guarantee is limited to product replacement only, and does not apply to any non-Zero-leak Gold or SAE part of the fitting. Contact EPCO for details and limitations on this guarantee resulting from mistreatment.
Other Zero-Leak Gold products
Zero-Leak Gold/JIC
Zero-Leak Gold/ORFS
Zero-Leak Gold Plugs
Zero-Leak Gold Adjustable Port
Entry Fittings
Zero-Leak Gold Magnetic Plug
Design Note
Zero-Leak Gold Fittings are interchangable with standard straight thread
SAE J514 fittings. Thanks to their exclusive design features, Zero-Leak
Gold Fittings provide no weep/leak performance unmatched by any other
SAE straight thread fitting currently available.
Standard fitting design
A standard SAE J1926 port consists of a straight female thread with
a taper at the outer end (12° or 15° depending
on size). This taper is fully occupied by the O-ring (of relatively
large cross section) backed against a shoulder perpendicular to the
axis of the fitting. This shoulder is forced against the face of the port
in an attempt to compress the O-ring into the taper of the port. The O-ring
essentially acts as a gasket. In this situation, any linear (axial) gap
created by the pressurization of the fitting represents a possible escape
route for extrusion of the O-ring and a potential leak path.
The Zero-Leak Gold difference
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Every Zero-Leak Gold Fitting features a small metallic intrusion under the hex of the fitting. It is designed to engage in approximately the first 0.025" of the taper of the J1926 port. An O-ring significantly smaller than the ones used on standard fittings is located in front of the intrusion. This O-ring occupies less cross-sectional area than the area of the pocket below the taper remaining in front of the intruding portion. Therefore, the O-ring is not compressed nor can it be nibbled.
This design provides several substantial benefits:
- The metallic intrusion works as a wedge in the assembly process. This increases the integrity of the assembly and massively increases the unit loading of the two sealing surfaces.
- The taper in Zero-Leak Gold Fittings forms a metal-to-metal seal, with the O-ring acting as a backup seal.
- Any gap which may occur due to excessive pressurization of the fitting is minimized by the geometry of the tapers.
Specifications
Zero-Leak Gold
socket-head standard (English) thread
Zero-Leak Gold hex-head
standard (English) thread
Zero-Leak Gold
socket-head metric thread
Zero-Leak Gold hex-head
metric thread
Zero-Leak Gold
Magnetic hex-head plug
Zero-Leak Gold
Magnetic socket head plug
For Reference
Straight Thread O-Ring
Boss Port Dimensions
Metric Straight
Thread Port Dimensions
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