Liquid Tight Non-Metallic Flexible Conduit Fitting, Straight Type
Liquid Tight Non-Metallic Fitting P50 series is certified by UL laboratory according to UL514B and Canadian CSA-C22.2 No.56 standard. The fitting is applied on the relay or end point of wiring system to connect flexible conduits, junction box or enclosure for wiring extension and protection. The body is made of polyvinyl chloride (PVC) with RoHS compliance. The fitting is fixed to the junction box or tapped entries by locknut with male NPT thread system and connected with flexible conduit by a nut. The compact structure of this fitting offers feature of moisture and water seal to protect the wiring system. Because fire retardant and resistance of low temperature, corrosion, oil and UV, this series of fitting is benefit to apply to indoor or outdoor environments after assembled with the liquid tight flexible conduit series PLFNCB, PLFNCB2, PULTG, PCULTG, PCBLTG, PHLTG and PNKLTG.
Feature
-
Material:
PVC -
Color：
Grey (Standard), other colors are available by consult. -
IP Rating:
IP 68 -
Color：
Grey (Standard), other colors are available by consult. -
Temperature Range :
-18℃~+60℃ -
RoHS Compliance :
Yes -
Certificate :
cULus (File No.: E256570)
Parameter
| Nominal Conduit Size | Nominal Conduit Size | NPT Thread | Part Number | Package/Box (Pcs) | Weight/Box (Kg) | Certificate | Mated With |
|---|---|---|---|---|---|---|---|
| 12 | 3/8 | 1/2" | P501-3/8 | 400 | 9.7 |
|
|
| 16 | 1/2 | 1/2" | P502-1/2 | 360 | 8.1 |
|
|
| 21 | 3/4 | 3/4" | P503-3/4 | 300 | 11 |
|
|
| 27 | 1 | 1" | P504-1 | 160 | 8.8 |
|
|
| 35 | 1-1/4 | 1-1/4" | P505-1-1/4 | 80 | 6.3 |
|
|
| 41 | 1-1/2 | 1-1/2" | P506-1-1/2 | 60 | 5.4 |
|
|
| 53 | 2 | 2" | P507-2 | 50 | 7.7 |
|
|
Frequently Asked Questions (FAQ)
What is the P50 Series Liquid Tight Non-Metallic Conduit Fitting?
The P50 Series is a straight-type liquid tight fitting made of PVC, designed to connect liquid tight flexible nonmetallic conduit (LFNC-B) to a junction box or enclosure. It is Listed to UL514B and CSA-C22.2 No. 56 under cULus File No. E256570, and provides IP68-rated moisture and water sealing when properly assembled.
What certifications does the P50 Series carry?
The P50 Series is cULus Listed under File No. E256570, certified to UL514B (the UL Standard for Metallic Outlet Boxes and Fittings) and the Canadian standard CSA-C22.2 No. 56. It is also RoHS compliant. You can verify this listing directly via the UL Product iQ database using the file number above.
What is the operating temperature range of the P50 Series?
The P50 Series fitting is rated for an operating temperature range of -18°C to +60°C (-0.4°F to +140°F), suitable for most indoor and outdoor industrial wiring environments.
What sizes are available and what NPT thread do they use?
The P50 Series is available in 7 trade sizes from 3/8" to 2", each matched with a corresponding NPT thread size (1/2" NPT for 3/8" and 1/2" conduit sizes, up to 2" NPT for the 2" conduit size). See the part number table above for the full size-to-thread mapping.
Which flexible conduits are compatible with the P50 Series?
The P50 Series fitting is designed to mate with several Kaiflex liquid tight flexible nonmetallic conduit series, including PLFNCB, PLFNCB2, PULTG, PCULTG, PCBLTG, PHLTG, and PNKLTG. This makes it a versatile connector across multiple liquid-tight product lines.
How is the P50 Series fitting installed?
The fitting is secured to the junction box or tapped entry using a locknut with a male NPT thread system, and connects to the flexible conduit via a compression nut. This two-point mechanical connection is what provides the fitting's moisture and water seal, in line with its IP68 rating.
What is the difference between IP68 and lower IP ratings for this type of fitting?
IP68 means the fitting is protected against dust ingress and can withstand continuous submersion in water beyond 1 meter depth, as defined under IEC 60529. This makes the P50 Series suitable for washdown areas, outdoor exposure, and wet or corrosive industrial environments, not just splash-resistant use.
Can the P50 Series be used outdoors or in corrosive environments?
Yes. The PVC body is inherently corrosion-resistant, UV-stabilized, oil-resistant, and fire retardant, making the P50 Series suitable for outdoor installations, chemical plants, food and beverage processing, and other environments where metallic fittings would be prone to corrosion.
What color options are available for the P50 Series?
The P50 Series is available in Grey as the standard color. Other colors can be supplied on request for large-volume or project-specific orders — contact our sales team for details.
How do I choose between the P50 straight fitting and other fitting types in this product line?
The P50 Series is a straight-type connector, ideal for direct in-line runs. For 90-degree turns, the equivalent P53 Series elbow fitting is available; for tool-free quick assembly, the PP60 (straight) and PP63 (90-degree) Quick Type series are also compatible with the same conduit lines. All series share the same UL514B / CSA-C22.2 No. 56 certification basis.
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