Description
Product Overview
The ST shengtuo Valve Core is a precision‑engineered component designed for demanding refrigeration and HVAC systems. Each core is fabricated from high‑grade brass, providing excellent corrosion resistance and structural integrity under continuous high‑pressure cycles. The accompanying rubber element, paired with a Teflon seal, creates a robust barrier against refrigerant leakage, ensuring system efficiency and longevity. Certified to meet the AHRI‑720 standard, these cores deliver consistent performance across a range of refrigerants, including R22, R410, and R32, making them a versatile choice for both legacy and modern installations.
Measuring just 5.83 x 4.88 x 0.16 inches and weighing only 1.69 ounces, the valve core is compact enough to fit within tight equipment housings while still providing the necessary flow capacity. The national pipe tapered inlet and NPT outlet connections simplify installation, reducing the need for additional adapters or custom fittings. Packaged in a convenient bulk set of 50, the product minimizes inventory management effort for service technicians, allowing rapid replacement during routine maintenance or emergency repairs.
![[Product front view showing all components]](https://www.infinitygo.store/wp-content/uploads/2026/06/addaa8594e114ed69059ee2c90f2c0ba.jpg)
Usage
Designed for high‑pressure refrigeration cycles, this valve core excels in commercial chillers, industrial cooling units, and residential air‑conditioning systems. Its robust construction makes it suitable for environments where temperature fluctuations and pressure spikes are common, such as in food processing plants, data center cooling, and automotive HVAC applications. The Teflon seal’s chemical resistance also permits use with a variety of refrigerants, ensuring compliance with evolving environmental regulations.
Installation technicians will appreciate the straightforward connection process: the national pipe tapered inlet aligns seamlessly with standard supply lines, while the NPT outlet integrates directly into existing manifold assemblies. The valve core’s leak‑free design reduces the need for additional sealing compounds, speeding up service times and lowering labor costs. Whether performing a system retrofit, a seasonal maintenance check, or a complete system overhaul, the 50‑piece pack provides ample inventory to cover multiple units without frequent reordering.
Why Choose Us
ST shengtuo brings decades of manufacturing expertise to every valve core, combining rigorous quality control with meticulous material selection. Each core undergoes a multi‑stage inspection process, including dimensional verification, pressure testing, and seal integrity checks, guaranteeing that only components meeting strict performance criteria reach the market. Our commitment to durability means you receive a product that resists wear, corrosion, and mechanical fatigue, extending the service life of your refrigeration equipment.
Beyond product quality, we prioritize customer support. Our dedicated technical team is available to assist with installation guidance, troubleshooting, and warranty claims. Should any issue arise, we offer prompt replacement parts and expert advice, ensuring minimal disruption to your operations. By choosing ST shengtuo, you align with a brand recognized for reliability, consistency, and a focus on long‑term client satisfaction.
Key Features
- High pressure reliability meeting AHRI‑720 standards for consistent system performance.
- Durable brass construction paired with a rubber element for superior corrosion resistance.
- Teflon seal provides leak‑free operation and extends component lifespan.
- Universal NPT outlet and national pipe tapered inlet simplify installation across many system types.
- Comprehensive after‑sales support with technical assistance and fast replacement parts.
FAQ
What refrigerants are compatible with this valve core?
The valve core is compatible with R22, R410, R32, and other common refrigerants used in both legacy and newer HVAC systems. Its Teflon seal ensures chemical resistance across a broad range of refrigerant types.
Can the valve core be used in residential air‑conditioning units?
Yes, the core’s compact dimensions and standard NPT connections make it suitable for residential air‑conditioning applications, providing reliable performance in smaller scale systems.
How does the bulk pack of 50 improve maintenance efficiency?
Having 50 cores on hand reduces the need for frequent reordering, allowing technicians to complete multiple repairs or installations in a single service call, thereby decreasing downtime and labor costs.
What warranty does ST shengtuo offer on this product?
ST shengtuo provides a one‑year limited warranty covering manufacturing defects. Our support team will evaluate any claim and, if valid, supply a replacement core at no additional charge.
Is special tooling required for installation?
No special tools are needed. The national pipe tapered inlet and NPT outlet are designed for standard wrenches and pipe fitting tools commonly found in HVAC service kits.




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