SPX Series Stainless Steel Union Cross Fittings

The SPX Series stainless steel union cross is the ultimate component for creating a four-way junction in your pneumatic tubing. Constructed from 304 or 316 stainless steel, this push-to-connect cross fitting allows you to join four tubes of equal diameter at a single point. It is the most compact and efficient way to split a line into three branches or join multiple lines together. Its food-grade, corrosion-resistant design makes it a high-performance choice for complex plumbing in the food, chemical, and medical industries.
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Product Introducing:


Features & Key Specifications

Features & Key Specifications of Our SPX Series:

Compact Four-Way Connection:

The union cross design provides a single, compact fitting for creating a 4-way tube intersection, simplifying complex pneumatic circuits.

Equal Tube-to-Tube Ports:

Features four push-in ports of the same size for quick and easy connection of pneumatic tubing.

Premium Stainless Steel Construction:

Available in both 304 and 316 stainless steel, these fittings offer exceptional resistance to corrosion, chemicals, and high temperatures, making them ideal for washdown environments.

Comprehensive Size Options:

We stock a full range of sizes to fit any system.

Tube OD (Metric): 4mm, 6mm, 8mm, 10mm, 12mm

Tube OD (Inch): 5/32", 1/4", 5/16", 3/8", 1/2"

Food-Grade & Oil-Free Design:

Manufactured to be oil-free and compliant with the Food Hygiene Law, our food grade cross fittings are safe for use in sanitary applications.


Application Fields

For Complex Pneumatic Junctions:

Distribution Manifolds: Creating a compact, multi-port distribution point from a single air source.

Complex Machine Layouts: Solving complex routing challenges where multiple lines need to intersect.

Food & Beverage Machinery: A hygienic stainless steel cross fitting for processing and packaging equipment.

Laboratory & Instrumentation: Building complex sample or carrier gas distribution networks.


Technical & Selection Guide

When to Use a Union Cross

A union cross is a specialized fitting for advanced pneumatic plumbing. Choose it when you need to:

Split one inlet line into three separate outlet lines.

Join two separate lines into two other lines at a central intersection.

Create the most compact four-way junction possible.

For simpler, three-way connections, a Union Tee (SPE) or Union Y (SPY) is typically used.


FAQ

Frequently Asked questions

Q: Are all four ports on this fitting the same size?

A: Yes, the SPX is an equal union cross, meaning all four push-in ports are designed for the same tube diameter.

Q: Can this fitting be used in a washdown environment?

A: Yes, the 316 stainless steel construction is designed to withstand the water and cleaning chemicals used in industrial washdown procedures, making it a perfect choice for the food and beverage industry.

Q: What is the pressure rating for these fittings?

A: Our stainless steel push-in fittings are rated for a working pressure of 0 to 1.0 MPa (10 bar) and a maximum pressure of 1.5 MPa (15 bar).

Specifications

Working MediumAir,Water,Steam,liquid
Working Pressure0~1.0MPa
Max Pressure1.5MPa
Working Temperature-20-140℃
Features1.The body is made from stainless steel with high resistance to corrosion-FKM O-ring offer excellent resistance to corrosion, acid andhigh Temperature.
2.All sMPare MParts are oil-free and coPly with the Food Hygiene Law,widely used in food, chemical, Packaging, medical, etc.
Body MaterialSS316 / SS304
Tube OD4mm,6mm,8mm,10mm,12mm,14mm,18mm,
Port SizeM5,1/8",4",3/8",1/2",3/4"


KEEP IN TOUCH

About Us
Ningbo Pneutech Automation Co., Ltd.
Ningbo Pneutech Automation Co., Ltd.
Specializes in pneumatic components and automation solutions.Head quartered in Ningbo, China, We lever age 10 years of industry experience to provide high-quality cost-effective products and technical support to global clients. We offer a wide range of products including solenoid valves, air treatment units, fittings & tubing andautomation accessories-Serving industries like packaging, textile food,pharmaceuticals,environment al protection, water treating.etc
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