UL Listed Straight Liquid Tight Conduit Fitting | Zinc Alloy
Liquid Tight Metal Conduit Fitting S50 series is certified by UL laboratory according to UL514B and Canadian CSA-C22.2 No.56 standard. The metal fittings are applied on the relay or end point of wiring system to connect metal conduits, junction box or enclosure for wiring extension and protection. The body is made of zinc alloy with RoHS compliance. The fitting is fixed to the junction box or tapped entries by locknut with male NPT thread system and connected with metal flexible conduit by a nut. The compact structure of this fitting offers feature of moisture and water seal and high tensile resistance to protect the wiring system and benefit to apply to indoor or outdoor environments after assembled with the liquid tight metal flexible conduit series PULTG, PCBLTG, PHLTG and PNKLTG.
Feature
-
Material:
Zinc Alloy -
Temperature Range:
-20℃~+90℃ -
IP Rating:
IP 66 (Fit with conduit series: PULTG, PCBLTG, PHLTG & PNKLTG) -
Surface Finish :
Chromate, other treatments are available by consult. -
RoHS Compliance :
Yes -
Certificate :
UL, 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" | S501-3/8 | 300 | 22.5 |
|
|
| 16 | 1/2 | 1/2" | S502-1/2 | 400 | 22 |
|
|
| 21 | 3/4 | 3/4" | S503-3/4 | 240 | 19.7 |
|
|
| 27 | 1 | 1" | S504-1 | 160 | 20.2 |
|
|
| 35 | 1-1/4 | 1-1/4" | S505-1-1/4 | 80 | 18.6 |
|
|
| 41 | 1-1/2 | 1-1/2" | S506-1-1/2 | 60 | 16.6 |
|
|
| 53 | 2 | 2" | S507-2 | 50 | 18 |
|
|
| 63 | 2-1/2 | 2-1/2" | S508-2-1/2 | 25 | 16 |
|
|
| 78 | 3 | 3" | S509-3 | 12 | 12 |
|
|
| 103 | 4 | 4" | S5010-4 | 10 | 17.2 |
|
|
Frequently Asked Questions (FAQ) - S50 Series Straight Liquid Tight Fitting
What is the Kaiflex S50 Series Liquid Tight Fitting?
The Kaiflex S50 Series is a straight-type, male NPT threaded liquid-tight metal conduit fitting. It is designed to securely connect liquid-tight flexible metal conduits (LFMC) to electrical junction boxes, enclosures, or equipment entries, providing excellent moisture seal, water protection, and high tensile strain relief.
What safety certifications and standards does the S50 fitting comply with?
The S50 series liquid-tight fitting is certified by cULus according to the UL 514B standard in the US and the CSA C22.2 No. 56 standard in Canada. Additionally, its zinc alloy body is fully compliant with RoHS environmental standards.
What materials are used to manufacture Kaiflex S50 Series fittings?
The main body of the S50 fitting is manufactured from high-quality die-cast Zinc Alloy with a chromate surface finish, ensuring strong corrosion resistance, mechanical strength, and long-term durability in harsh environments.
What IP ingress protection rating does the S50 fitting offer?
The IP rating depends on the connected flexible metal conduit series:
- IP66 / IP68: When paired with PVC-jacketed waterproof flexible conduits (such as PULTG, PG2F1, or PS2F1 series).
- IP40: When paired with unjacketed low fire hazard conduits (such as PG2 or PS2 series).
What trade sizes and thread specifications are available for S50 fittings?
The S50 series is available in trade sizes ranging from 3/8" to 2", equipped with standard NPT male threads:
- 3/8" (S501-3/8 - 1/2" NPT thread)
- 1/2" (S502-1/2 - 1/2" NPT thread)
- 3/4" (S503-3/4 - 3/4" NPT thread)
- 1" (S504-1 - 1" NPT thread)
- 1-1/4" (S505-1-1/4 - 1-1/4" NPT thread)
- 1-1/2" (S506-1-1/2 - 1-1/2" NPT thread)
- 2" (S507-2 - 2" NPT thread)
Where can S50 liquid-tight fittings be applied?
Kaiflex S50 fittings are widely used in both indoor and outdoor industrial, commercial, and infrastructure electrical wiring applications, including machine tools, industrial automation, data centers, power distribution systems, and marine/shipyard environments requiring protection against water, oil, and dust.
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