NPT Galvanized Male Female Threaded Union 343 Pipe Fittings
2.Dual-threaded, detachable pipe connector .
3.Industrial water/gas pipeline fitting .
4.Hot-dipped galvanized, precision-threaded .
5.High-strength, anti-rust malleable iron .
6.NPT/BSPT compatible, easy disassembly .
7.Corrosion-resistant 343 threaded union .
8.Industrial-grade, male-female pipe joiner
Description
NPT Galvanized Male Female Threaded Union 343 Pipe Fittings
When you need reliable, detachable connections in your piping systems, NPT Galvanized Male Female Threaded Union 343 Pipe Fittings convey uncommon execution. These specialized connectors highlight a one of a kind plan with one male strung conclusion and one female strung conclusion, disposing of the require for extra areola fittings. Not at all like standard unions, this 343 arrangement disentangles your establishment prepare whereas giving predominant leak-proof associations through its precision-engineered cone shaped iron-to-iron situate plan. Culminate for mechanical applications requiring visit upkeep access.
Technical Specifications
Our fittings are made from high-grade ASTM A197 moldable press. The hot-dip galvanization handle guarantees extraordinary erosion resistance. These fittings comply with ANSI/ASME B1.20.1 NPT threading measures and include a 60-degree decrease point for ideal fixing performance.
Dimensions and Specifications Table
| Size (NPT) | Thread A (Male) | Thread B (Female) | Overall Length | Hex Size | Working Pressure | Weight (lbs) |
|---|---|---|---|---|---|---|
| 1/8" | NPT Male | NPT Female | 1.5" | 7/8" | 300 PSI WOG | 0.15 |
| 1/4" | NPT Male | NPT Female | 1.7" | 1" | 300 PSI WOG | 0.25 |
| 3/8" | NPT Male | NPT Female | 1.9" | 1-1/8" | 300 PSI WOG | 0.35 |
| 1/2" | NPT Male | NPT Female | 2.1" | 1-1/4" | 300 PSI WOG | 0.50 |
| 3/4" | NPT Male | NPT Female | 2.4" | 1-1/2" | 300 PSI WOG | 0.75 |
| 1" | NPT Male | NPT Female | 2.8" | 1-3/4" | 300 PSI WOG | 1.20 |
| 1-1/4" | NPT Male | NPT Female | 3.2" | 2-1/8" | 300 PSI WOG | 1.85 |
| 1-1/2" | NPT Male | NPT Female | 3.6" | 2-3/8" | 300 PSI WOG | 2.50 |
| 2" | NPT Male | NPT Female | 4.2" | 2-7/8" | 300 PSI WOG | 3.80 |



Key Features
Your channeling ventures advantage from a few progressed highlights. The cone shaped metal-to-metal situate kills gasket reliance, lessening support prerequisites. The dual-thread setup permits coordinate association to gear with distinctive string introductions. Hot-dip galvanization gives predominant erosion security compared to electroplated alternatives.
The pliable press development offers great stun resistance and ductility. You can effectively disengage pipe segments for upkeep without cutting channels or destroying whole frameworks. These fittings withstand tall mechanical torque amid establishment whereas keeping up their fixing integrity.
Materials and Surface Treatment
We fabricate these fittings from premium ASTM A197 pliable press, giving least ductile quality of 40,000 psi. The warm treatment prepare upgrades ductility and stun resistance. Our hot-dip galvanization prepare applies zinc coating surpassing 86 microns thickness, assembly ASTM A153 specifications.
This prevalent coating gives cathodic security against oxidation and galvanic erosion. The zinc layer keeps up its defensive properties in muggy and saline situations, amplifying your system's benefit life significantly.






Application Areas
NPT Galvanized Male Female Threaded Union 343 Pipe Fittings exceed expectations in different mechanical applications. Water treatment offices utilize them for simple upkeep get to focuses. Oil and gas frameworks advantage from their leak-proof plan beneath weight. HVAC establishments appreciate their warm cycling resistance.
Chemical handling plants depend on their erosion resistance. Marine applications take advantage of their galvanized security. Fabricating offices utilize them in compressed discuss frameworks where visit detachment is required.






Installation Instructions
Start by cleaning all string surfaces altogether. Apply fitting string sealant to male strings as it were. Hand-tighten the association at first, at that point utilize torques on the hex pads for last fixing. Dodge over-torquing, which can harm the cone shaped seat.
The funnel shaped situate makes a metal-to-metal seal through legitimate engagement. Guarantee strings adjust accurately some time recently applying torque. For best comes about, take after standard pipe fitting torque details for your particular size.
Quality Control
Our quality affirmation prepare guarantees each fitting meets strict execution measures. String accuracy confirmation employments calibrated plug and ring gages. Each unit experiences pneumatic weight testing at 85 psi whereas submerged to distinguish any porosity leaks.
Zinc coating thickness estimation employments attractive acceptance gages, guaranteeing least 70-micron scope. Visual review affirms no zinc clogging in strings. The funnel shaped joint gets surface wrap up testing to ensure idealize iron-to-iron contact.






OEM and Customization Services
Shanxi Taigu Zhiyuan offers comprehensive customization alternatives for your particular prerequisites. We can adjust measurements, weight evaluations, and string details. Our designing group works with you to create custom arrangements for interesting applications.
With yearly generation capacity of 30,000 tons and over 1,000 item determinations, we handle both standard and custom orders proficiently. Our 18 a long time of casting involvement guarantees dependable fabricating processes.
Packaging and Shipping
We bundle fittings in defensive cartons with padding materials. Bulk orders transport on beds for productive taking care of. Each bundle incorporates item determinations and establishment rules. Our coordinations organize guarantees provoke conveyance from our Shanxi facility.
Standard shipping incorporates following data and conveyance affirmation. For universal orders, we handle all trade documentation and traditions prerequisites professionally.





Frequently Asked Questions
Q: What's the difference between Figure 340 and 343 unions?
A: Figure 340 features female/female connections, while our fittings have one male and one female end for direct equipment connection.
Q: Do these fittings require gaskets?
A: No, the precision-machined conical metal seat creates leak-proof seals through metal-to-metal contact, offering superior durability.
Q: What's the pressure rating?
A: Standard rating is Class 150, handling 300 PSI WOG at ambient temperatures and 150 PSI for saturated steam.
Q: Are they suitable for potable water?
A: Yes, when manufactured with high-grade zinc and certified as lead-free meeting NSF/ANSI 61 standards.






Contact Us
Ready to enhance your piping systems with reliable NPT Galvanized Male Female Threaded Union 343 Pipe Fittings? Our technical team stands ready to assist with product selection and custom solutions. Contact us at zhiyuan@mifittings.com for detailed specifications, pricing, and delivery information.
Experience the quality difference that comes from 18 years of manufacturing excellence and over 500 skilled professionals dedicated to producing superior pipe fittings for your critical applications.
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