Guide to Choosing KITZ Valves for Pressure and Temperature Needs

Selecting the appropriate valve for specific pressure and temperature conditions is crucial in pipeline design. An improper choice can impact production efficiency or, in worst cases, lead to safety incidents. This guide provides clear information to help identify the most suitable KITZ valve for your operational requirements.

Valve ratings indicate the maximum pressure a valve can withstand at specific temperatures. Different KITZ valve models and materials have varying ratings, with allowable pressure decreasing as temperature increases. Always consult product catalogs for precise temperature-pressure relationships.

For example, to estimate the maximum working pressure for an "Ecoball Z" valve at 100°C when catalog data shows 4.12MPa at 38°C and 0.98MPa at 150°C, use linear interpolation:

0.98 + (4.12 - 0.98) × (150 - 100) / (150 - 38) ≈ 2.38MPa

Note that this is an estimation - always verify with official KITZ parameters and calculation methods provided in product documentation.

The S-Ball valve series is engineered for water supply systems, with standard operating temperatures between 0°C and +40°C. However, KITZ specifies an important safety consideration: during potential backflow situations (when connected to water heaters or similar equipment), the secondary side temperature must not exceed +80°C.

The numerical designations in KITZ valve models (400-type, 600-type, etc.) represent pressure classes derived from PSI (pounds per square inch) measurements. These values indicate maximum allowable working pressures at ambient temperatures (≤38°C):

• 400-type: 2.75MPa maximum working pressure
• 600-type: 4.12MPa
• 800-type: 5.49MPa
• 1000-type: 6.86MPa

• Thoroughly review product catalogs for temperature-specific pressure ratings
• Account for potential backflow conditions, particularly with S-Ball series valves
• Understand that model numbers indicate pressure class, not physical dimensions
• Perform pressure derating calculations for high-temperature operations