Butterfly Valve Wafer Type

Description

1. Product Overview

The Butterfly Valve Wafer Type is a high-performance flow control device designed for efficient isolation and regulation of liquids, gases, and slurries in industrial piping systems. Its primary industrial use spans water treatment, chemical processing, oil & gas, HVAC, fire protection, and municipal infrastructure. The key value proposition lies in its compact wafer design, which enables easy installation between flanges without additional bolts, delivering cost savings, reduced footprint, and reliable bubble-tight shutoff. Strategically, this valve is critical for enterprises seeking durable, low-maintenance, and universally compatible flow control solutions that minimize downtime and maximize operational efficiency in demanding environments.

2. Key Specifications & Technical Characteristics

• Material Components:

  • Body: Cast Iron, Ductile Iron (SG Iron), Cast Carbon Steel, Stainless Steel (CF8/CF8M), Bronze

  • Disc: Ductile Iron, Stainless Steel (304/316), Coated with Nylon/Epoxy or PTFE

  • Seat/Liner: Nitrile (NBR), EPDM, Neoprene, Viton, PTFE, Silicon, Buna-N

  • Stem: Stainless Steel AISI 410, 304, 316, 416

  • Bushing: Teflon, Nylon, or Carbon Steel

  • O-Rings: Nitrile or PTFE

• Grade/Purity: Industrial-grade, manufactured to API 609, ASME B16.1/16.5, ASME B16.34, MSS SP-67, BS 5155, JIS 10K, PN16 standards

• Physical Characteristics:

  • Form: Compact wafer-style, intermediate installation between flanges

  • Color: Typically blue, black, or color-coated (epoxy paint)

  • Pressure Rating: 50–160 PSI (PN10–PN16, JIS 10K)

  • Temperature Range: Up to 80°C (PVC/CPVC), 120°C (PVDF), 150°C (metal-seated)

  • Size Range: DN32–DN1000 (2″–40″)

  • Weight: 36 lbs (8″ model) to several hundred kg for large sizes

• Packaging Options: Individual carton/wooden crate, palletized for container shipment, custom labeling available

• Shelf Life: 5–10 years when stored in dry, non-corrosive environment (rubber seats may degrade faster in extreme conditions)

3. Core Industrial Applications

• Primary Industries:

  • Water & Wastewater Treatment

  • Chemical & Petrochemical Processing

  • Oil & Gas (upstream, midstream, downstream)

  • HVAC & Building Services

  • Fire Fighting Systems

  • Paper & Pulp Industry

  • Sugar & Food Processing

  • Power Generation & Cooling Water Circulation

  • Civil Construction & Municipal Infrastructure

• Operational Use Cases:

  • Isolation and throttling of water, air, steam, chemicals, slurries

  • Flow control in cooling loops, compressed air lines, effluent treatment

  • Fire protection system isolation valves

  • Pump discharge and suction line control

• Performance Advantages:

  • Efficiency: Quarter-turn operation, low torque requirement, double eccentric design reduces disc-seal contact and wear

  • Durability: Resilient seated or metal-seated options for harsh media; corrosion-resistant coatings extend service life

  • Cost Advantages: Compact wafer design reduces material usage, installation time, and flange bolt requirements vs. lug/flanged valves

4. Competitive Advantages

• Quality Consistency: Manufactured under ISO/API/ASME quality systems; 100% factory-tested for leak-tightness (API 598)

• Supply Reliability: High-volume production capacity; multiple material/seat options for rapid customization; global export experience (103+ countries)

• Logistics Capability: Optimized packing for 20’/40′ containers; FOB/CIF/DDP terms available; shipping from major industrial hubs (India, China, Europe)

• Price Competitiveness: Cost-effective wafer design reduces total installed cost by 20–30% vs. lug/flanged alternatives; bulk pricing for 20MT+ orders

• Sustainability Benefits: Long service life reduces replacement frequency; non-toxic seat materials (EPDM, PTFE) comply with environmental regulations; lead-free options available

• Technical Support: Comprehensive documentation (datasheets, installation manuals, CAD drawings); on-site engineering support available for large projects

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20MT

• Loading Capacity: Approximately 20–25 MT per 20-foot container (depending on size range and packaging); 40–45 MT per 40-foot container