ISO Cross-Type Four-Way Fittings - Industrial Fluid Connection Solutions

Professional ISO standard cross-type four-way fittings in stainless steel, aluminum, copper and more. Detailed technical specifications, application cases, and 10 expert FAQs for hydraulic and pneumatic systems.

Complete technical analysis of ISO cross-type four-way fittings including precision manufacturing processes, multi-material options, industry applications, and professional Q&A for industrial connection requirements.

ISO cross fittings, stainless steel four-way connectors, hydraulic system fittings, pneumatic pipe couplings, high-pressure pipe fittings, industrial fluid connections, corrosion-resistant pipe joints

ISO Cross-Type Four-Way Fittings Technical Manual

1. Core Product Advantages

1.1 Advanced Manufacturing Technology

Precision investment casting process

Dimensional accuracy ±0.1mm

Surface roughness Ra≤1.6μm

100% air-tightness testing

1.2 Multi-Material Options

1.3 Outstanding Performance

Pressure Rating: Up to 80Bar working pressure

Temperature Range: -40℃~+250℃

Sealing Class: ISO 5208 Grade A standard

Corrosion Resistance: Passes 2000hr salt spray test

2. Detailed Technical Specifications

3. Industry Application Cases

Case 1: Construction Machinery Hydraulic System Upgrade

Issue: Frequent leaks in traditional joints under high-pressure impact

Solution: 316 stainless steel cross-type four-way fittings

Result: 98% reduction in leakage rate, 5-year extended service life

Case 2: Food Processing Plant Pneumatic Pipeline Retrofit

Requirement: FDA-compliant sanitary connections

Solution: Electro-polished 304 stainless steel components

Outcome: 3A certification achieved, 3× longer maintenance intervals

4. Professional Q&A (10 Key Technical Questions)

Q1: How to select appropriate material?
A: Consider three factors: ① Medium corrosivity ② Operating temperature ③ Budget. 304 for general corrosion, 316L for chloride environments, aluminum for lightweight needs.

Q2: Installation precautions?
A: Critical steps: ① Clean connecting surfaces ② Apply correct torque (see table) ③ Pressure testing

Q3: When to replace seals?
A: Three indicators: ① Visible wear ② Leakage in pressure test ③ Over 2 years use (preventive replacement recommended)

Q4: Ensuring reliability in vibrating environments?
A: Recommended solutions: ① Anti-loosening clamps ② Metal gaskets ③ Regular inspection (every 500 operating hours)

Q5: Can different thread standards be mixed?
A: Strictly prohibited! Must ensure: ① Same thread type ② Matching sealing form ③ Same rotation direction

Q6: Meeting ultra-cleanliness requirements?
A: Select: ① Electro-polishing ② EPDM seals ③ Argon purging before installation

Q7: Material selection for extreme temperatures?
A: High temp (>150℃): ① Stainless steel ② Graphite seals; Low temp (<-30℃): ① Special cryogenic steel ② Fluororubber seals

Q8: Routine maintenance procedures?
A: Three steps: ① Visual inspection ② Regular torque verification ③ Thread lubrication (with special grease)

Q9: Emergency leak response?
A: Four-level response: ① Pressure reduction shutdown ② Mark leakage point ③ Seal replacement ④ Re-pressure testing

Q10: Customization services available?
A: Supports: ① Special dimensions ② Dissimilar material combinations ③ Non-standard pressure ratings ④ Brand logo engraving