How Do You Choose the Right Steel Pipe Joints and Fittings for High-Pressure Lines?

Choosing proper joints and fittings for Class 150 pressure applications requires careful consideration of several key factors. While not high-pressure by industrial standards, these systems demand reliable performance for fire protection, water supply, and gas distribution.

Materials & Certifications

Confirm that your fittings have the appropriate certifications to meet your application requirements. JIANZHI Group's malleable cast iron fittings meet FM and UL fire-retardant standards, the Brazilian ABNT standard, and the European CE standard. These certifications ensure that the fittings can safely withstand pressure up to 150 levels while maintaining system integrity.

Corrosion Protection

Galvanized or Iron Fittings? It depends on the environment. Galvanized malleable cast iron fittings offer superior corrosion resistance in humid environments for water supply, while iron malleable cast iron fittings are suitable for gas distribution and indoor applications. JIANZHI Group's hot-dip galvanizing process ensures a uniform coating, providing long-lasting protection.

Thread Quality and Installation

In Class 150 pressure systems, precision threads are crucial for ensuring leak-free performance. JIANZHI Group's thread standards utilize precise NPT and BSPT threads, achieving a good seal without overtightening. The smooth thread surface prevents damage during installation, thus maintaining pressure integrity.

Application Requirements

For fire protection systems, our FM & UL certified galvanized pipe fittings deliver reliable sprinkler performance. For gas distribution, black malleable iron fittings provide secure connections and pressure containment.

With 43 years of manufacturing experience, we ensure our Class 150 pressure fittings meet the highest quality standards. Our products offer the perfect balance of safety, reliability, and cost-effectiveness for medium-pressure applications.

Need Certified Fittings for Class 150 Systems?

Our certified malleable iron pipe fittings deliver reliable performance for your pressure applications. Contact us for technical specifications and certification documents.