Handle/Gear Box Stainless Steel GGG50 PTFE Seal Wafer Butterfly Valve

Designed and manufactured for reliable flow control, our Wafer Butterfly Valve features a robust GGG50 ductile iron body, stainless steel disc, and high-performance PTFE seat. It delivers excellent sealing performance, superior corrosion resistance, and long service life in demanding industrial environments.Available with lever handle or worm gearbox operation, this compact wafer-style butterfly valve is easy to install between flanges, saving space and installation cost. It provides bubble-tight shut-off in both directions and low operating torque.Key Features:

Body: Ductile Iron GGG50
Disc: Stainless Steel (CF8/CF8M)
Seat: PTFE
Operation: Lever Handle or Gearbox
Pressure Rating: PN10 / PN16
Size Range: DN50 – DN300
Temperature Range: -20°C to +150°C

Applications:
Water treatment, HVAC, chemical processing, food & beverage, pharmaceuticals, power plants, and general industrial piping systems.This series combines European advanced design with cost-effective manufacturing, offering outstanding reliability and value for global customers.

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Product Details (English Version)Handle / Gearbox Stainless Steel GGG50 PTFE Seated Wafer Butterfly ValveOur Wafer Butterfly Valve is a high-performance, cost-effective flow control solution designed for reliable shut-off and regulation in industrial piping systems. Featuring a robust GGG50 ductile iron body, stainless steel disc, and premium PTFE seat, this valve delivers excellent corrosion resistance, bubble-tight sealing, and long service life even in mildly aggressive media.Available in both lever handle and worm gearbox operation, it offers flexible actuation choices to suit different pipeline requirements and operator preferences. The compact wafer design allows easy installation between flanges, significantly reducing space requirements and installation costs.Key Features & BenefitsSuperior Sealing Performance: High-quality PTFE seat provides bi-directional zero leakage sealing with very low operating torque and excellent wear resistance.
Robust Construction: GGG50 (QT500-7) ductile iron body offers high strength, impact resistance, and durability.
Corrosion Resistance: Stainless steel disc (CF8 / CF8M) combined with PTFE seat ensures outstanding performance in corrosive environments.
Compact & Lightweight: Wafer type design minimizes weight and overall length, ideal for space-constrained installations.
Easy Operation: Smooth lever handle for smaller sizes (DN50–DN200) and precise gearbox operation for larger sizes (DN200 and above).
Surface Protection: Fusion-bonded epoxy coating on the body provides superior external corrosion protection.
Low Maintenance: Simple structure with few wearing parts ensures long-term reliable operation.
Technical SpecificationsItem
Specification
Valve Type
Wafer Butterfly Valve
Body Material
Ductile Iron GGG50
Disc Material
Stainless Steel 304 / 316 (CF8/CF8M)
Seat Material
PTFE
Stem Material
Stainless Steel 416 / 316
Operation
Lever Handle / Worm Gearbox
Pressure Rating
PN10 / PN16
Size Range
DN50 – DN300 (2" – 12")
Temperature Range
-20°C to +150°C
Connection
Wafer (between flanges)
Face to Face
ISO 5752 Series 20 / EN558
Flange Standard
PN10 / PN16, ANSI 150 (optional)
Leakage Class
Zero leakage (Bubble Tight)
ApplicationsWidely used in:Water treatment and distribution
HVAC and building services
Chemical and petrochemical processing
Food & beverage industry
Pharmaceutical and biotechnology
Power plants and thermal systems
Pulp & paper industry
General industrial piping systems
Standards & ComplianceDesign: EN 593 / API 609
Testing: EN 12266 / API 598
Flange drilling: EN 1092 / ANSI B16.5
Top flange: ISO 5211 (for actuator mounting)
Optional FeaturesDifferent disc and stem materials (316L, Duplex, etc.)
EPDM / NBR / Viton seat options
Chain wheel operation
Limit switches and position indicators
OEM and customized solutions
This GGG50 PTFE wafer butterfly valve series combines European design standards with competitive manufacturing, offering outstanding reliability and value to customers worldwide.Recommended Structure for Your Website:Short product title + Hero image
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Item	Specification
Valve Type	Wafer Butterfly Valve
Body Material	Ductile Iron GGG50
Disc Material	Stainless Steel 304 / 316 (CF8/CF8M)
Seat Material	PTFE
Stem Material	Stainless Steel 416 / 316
Operation	Lever Handle / Worm Gearbox
Pressure Rating	PN10 / PN16
Size Range	DN50 – DN300 (2" – 12")
Temperature Range	-20°C to +150°C
Connection	Wafer (between flanges)
Face to Face	ISO 5752 Series 20 / EN558
Flange Standard	PN10 / PN16, ANSI 150 (optional)
Leakage Class	Zero leakage (Bubble Tight)

Advantage

Product AdvantagesExcellent Corrosion Resistance
The combination of GGG50 ductile iron body with epoxy coating, stainless steel (304/316) disc, and high-purity PTFE seat provides superior resistance to corrosion and chemical attack, making it ideal for water, mild acids, alkalis, and other corrosive media.
Bubble-Tight Sealing Performance
Premium PTFE seat delivers reliable bi-directional zero leakage sealing (Class VI), ensuring safe and efficient flow control even after thousands of operation cycles.
Low Operating Torque
PTFE’s extremely low friction coefficient significantly reduces operating torque, allowing easy manual operation with lever handle or gearbox.
Compact & Lightweight Design
Wafer type construction offers short face-to-face dimension and light weight, saving space and installation costs while simplifying pipeline layout.
High Strength & Durability
Robust GGG50 (QT500-7) ductile iron body provides excellent mechanical strength, impact resistance, and long service life under demanding industrial conditions.
Flexible Operation Options
Available with lever handle (for DN50–DN200) and worm gearbox (for larger sizes), meeting different operational needs and enabling easy automation upgrade.
Easy Installation & Maintenance
Simple wafer design allows quick installation between standard flanges without additional supports. The valve’s modular structure ensures fast disassembly and low maintenance requirements.
Wide Temperature Range
Reliable performance from -20°C to +150°C, suitable for various industrial applications.
Outstanding Cost Performance
Combines European advanced design standards with competitive manufacturing, delivering premium quality at a highly attractive price.
Long Service Life
High-quality materials and precision machining ensure extended service life, reducing replacement frequency and overall ownership cost.
Recommended Short Version (for homepage or quick overview):Why Choose This Valve?Superior PTFE sealing for zero leakage  
Strong GGG50 body with excellent durability  
High corrosion resistance with stainless steel disc  
Compact wafer design – easy to install  
Low torque operation with handle or gearbox  
Wide application range and long service life  
Competitive price with reliable quality

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