Quality Control from Material to Finished Valve
PORO controls product quality throughout the manufacturing process, covering incoming materials, production, valve assembly, finished-product inspection and shipment preparation.
Incoming Material Inspection
Material Specification
Incoming valve materials are checked against the specified material grade and purchase requirements before entering production.
PORO manufactures valves using carbon steel, low-temperature carbon steel, stainless steel, duplex stainless steel and alloy steel materials.
Material Identification
Material information is checked against the corresponding production and order requirements to ensure the correct material is used for the specified valve.
Production Process Inspection
Machining
Valve components are inspected during machining to ensure that dimensions and processing requirements conform to the applicable product specifications.
Assembly
Valve components are checked during assembly to ensure correct component matching and proper assembly according to the valve construction and production requirements.
Process Records
Inspection requirements are applied at relevant production stages so that manufacturing issues can be identified before the finished valve enters final inspection.
Finished Valve Inspection
Dimensional Inspection
Finished valves are checked against the specified dimensions and product requirements before shipment.
Visual Inspection
Valve bodies, components, surface condition, marking and finished appearance are inspected before release.
Operation Inspection
The assembled valve is checked for operating condition according to the product type and applicable requirements.
Pressure & Performance Testing
Testing records are retained according to the requirements of the product and order.
Pressure Testing
Valves are tested according to the applicable product specification and agreed testing requirements.
Leakage Inspection
Valve sealing performance is checked according to the applicable product requirements before shipment.
Quality Documents
PORO provides product and quality documentation according to the applicable valve specification and order requirements.
Documents may include:
Product specifications
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Inspection records
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Test records
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Product certificates
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Technical documents
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Product drawings
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Standards & Compliance
PORO's valve range covers products manufactured according to applicable ANSI, DIN, BS, JIS and GB standards.
Final Inspection Before Shipment
Before shipment, finished valves are checked against the confirmed order requirements, including product specification, dimensions, appearance, marking, operation and required documentation.
Only products that meet the confirmed inspection requirements proceed to packing and shipment.