150LB CF3M Swing Check Valve,DN40,RF End
China 150LB CF3M Swing Check Valve,DN40 CF3M Swing Check Valve,RF EndCF3M Swing Check Valve,CF3M Swing Check Valve Factory.
150LB CF3M Swing Check Valve
Resumo do Produto
O 150LB CF3M Swing Check Valve is a heavy-duty, automatic non-return valve designed to prevent backflow and protect critical equipment in low-pressure, highly corrosive piping systems. Cast from premium CF3M (316L Stainless Steel) with an ultra-low carbon content, this valve provides exceptional resistance to intergranular corrosion and chloride pitting, making it an ideal choice for challenging chemical, industrial, and marine environments.
Principais características
- Superior Corrosion Resistance: The CF3M material features ultra-low carbon (\(\le 0.03\%\)), which eliminates carbide precipitation during welding and ensures maximum structural integrity in corrosive media.
- Full-Port Flow Design: The swing-type disc moves entirely out of the flow path when fully open, ensuring minimal flow resistance, low pressure drop, and high energy efficiency.
- Reliable Zero-Leakage Sealing: Precision-machined, metal-to-metal or resilient seating faces provide a tight seal under gravity and fluid backpressure.
- Easy Inline Maintenance: The Bolted Bonnet (BB) design allows quick access to the valve internals (disc, arm, and pin) for inspection or cleaning without removing the body from the pipeline.
- Bi-directional Integrity: Rugged body construction absorbs pipeline stresses and thermal expansion effectively.
Technical Specifications
- Design & Manufacture: API 6D / BS 1868 / ASME B16.34
- Classificação de pressão: Class 150 (150LB)
- Size Range: 2″ to 24″ (DN50 to DN600)
- Face-to-Face Dimensions: ASME B16.10
- End Flange Dimensions: ASME B16.5 (Raised Face – RF)
- Test & Inspection: API 598 / API 6D
- Body Material: ASTM A351 Gr. CF3M (Cast 316L Stainless Steel)
- Trim Material: Stainless Steel 316L / Stellite Face (Optional)
- Working Temperature: -196°C to 425°C (depending on seal and gasket materials)
Primary Applications
- Chemical & Petrochemical Processing: Handling organic acids, fatty acids, and aggressive chemical mediums.
- Water Treatment & Desalination: Ideal for reverse osmosis (RO) systems, brine solutions, and wastewater treatment.
- Pulp & Paper Industry: Managing bleaching agents, corrosive black/white liquors, and process slurries.
- Marine & Offshore Engineering: Reliable performance in shipbuilding, offshore platforms, and seawater cooling loops.
- Food & Pharmaceuticals: Clean-in-place (CIP) friendly and highly sanitary.
FAQ: 150LB CF3M Swing Check Valve
1. What is the difference between CF3M and CF8M for a check valve?
The main difference is the carbon content:
- CF3M (316L equivalent) has an ultra-low carbon limit of \(\le 0.03\%\).
- CF8M (316 equivalent) allows up to \(\le 0.08\%\) carbon.
The lower carbon in CF3M prevents chromium carbide precipitation during welding or high-temperature casting. This keeps the valve joints safe from intergranular corrosion (weld decay).
