Why PN400 Rating is Essential?
In hydraulic breaker auxiliary circuits, the sudden shock loads and pressure spikes can exceed 250 Bar. Standard low-pressure ball valves will fail or leak within hours. Our KHB Series Ball Valves are engineered for a PN400 rating, utilizing high-tensile carbon steel block construction and POM ball seals. This ensures a safe, absolute shut-off when switching between excavator attachments, protecting the operator and the hydraulic system from catastrophic blowouts.
hydraulic breaker pipeline parts ball valve
| Specification | Technical Detail | Application Focus |
|---|---|---|
| Valve Series | KHB / KHM Block Type | High-Pressure Shut-off |
| Connection Thread | G3/4″ / G1″ / G1-1/4″ | BSPP / Metric Standards |
| Max Working Pressure | PN400 – PN500 (400-500 Bar) | High-Frequency Vibration Resistant |
| Body Material | High-Tensile Carbon Steel | Zinc Plated (Anti-Corrosion) |
| Sealing System | POM (Ball) & NBR (Stem) | Low Friction & Zero Leakage |
| Temp Range | -30°C to +100°C | Optimized for Hydraulic Oil |
Maintenance & Selection Guide
Check Threads: Before installation, ensure threads are clean. Use high-pressure hydraulic sealant or O-rings to prevent weeping leaks under 400 BPM vibration.
Switching Procedure: Always disable the auxiliary hydraulic pump before turning the valve handle to prevent seal “wash-out” due to high-velocity oil flow.
High quality carbon steel material
Tight threads for easy pipe assembly
Finishes include galvanized and polished
hydraulic breaker pipe ball valve
hydraulic breaker pipeline ball valve
hydraulic breaker pipeline ball valve