KSB BOA-H Bellows Gate Valve: Product Advantages and Installation/Maintenance Precautions

Product Advantages Summary

Advantages | Description

✅ Zero-Leakage Sealing: Double sealing with bellows and packing, completely eliminating external leakage from the valve stem.

✅ German Quality: A century-old KSB brand, German engineering design standards.

✅ Ultra-High Temperature Resistance: Withstands high-temperature media up to 350°C (450°C for some models).

✅ Double-Layer Bellows: Standard double-layer design for longer fatigue life.

✅ No-Lift Handwheel: Saves operating space and facilitates compact installation.

✅ Valve Position Indicator: With color coding system, valve plate type can be identified without removing the insulation sleeve.

✅ Replaceable Valve Disc: Reduces maintenance costs; no need to replace the entire valve cover assembly.

✅ Heat-Dissipating Valve Cover: Protects the packing from high-temperature damage.

✅ Flexible Materials: Multiple choices including gray cast iron and ductile iron to suit different working conditions.

✅ Complete Diameter Range: DN 15 – DN 350 Full Coverage Installation and Maintenance Guide Installation Precautions Flow

 Direction Confirmation: During installation, ensure the flow direction arrow on the valve body matches the flow direction of the

 medium in the pipeline.

Flange Connection: Use appropriate gaskets and tightening torque to ensure reliable flange sealing.

Insulation Treatment: The short, smooth valve cover facilitates insulation, resulting in almost no heat loss.

Operating Space: The non-lifting handwheel design requires minimal installation space.

Pipeline Cleaning: Purge the pipeline before installation to prevent weld slag from damaging the sealing surface.

Maintenance Recommendations Regular Inspection: Check the bellows sealing performance and observe for any signs of external 

leakage.

Valve Position Check: Confirm the valve plate position using the position indicator.

Valve Disc Replacement: After the sealing surface wears down, only the valve disc assembly needs to be replaced; complete 

replacement is not required.

Insulation Inspection: Check the insulation layer for integrity to reduce heat loss.