Description
The ARITA Series body design neck with octagon shape offers aesthetic appearance, strength and compatible flange connection to international standards. Its top flange is designed to ISO5211 for the direct mounting of gear operator or actuators which eliminate the cost of mounting bracket. The one piece design body provides outstanding protection against particle entrapment and bacterial growth. ARITA offers various materials for the valves seat and disc to meet the various requirements of customers. The fine finishing of seat surfaces and the polished edge of disc give good sealing and reduction in operating torque.
Key Features and Benefits
- High Pressure Rating – Rated up to 16 bar for reliable operation in industrial and water systems.
- Durable NBR Seat – Excellent resistance to oils, water, and mild chemicals for long service life.
- Compact Wafer Design – Easily installed between flanges, reducing space and weight requirements.
- Corrosion-Resistant Body – Epoxy-coated cast or ductile iron body for superior protection against rust and wear.
- Stainless Steel Disc & Shaft – Ensures strength, corrosion resistance, and smooth operation.
- ISO 5211 Mounting Pad – Enables direct actuator mounting for automation or easy manual operation.
- Low Operating Torque – Smooth opening and closing reduce actuator strain and extend valve life.
- Versatile Applications – Suitable for water, oil, HVAC, and general industrial systems.
- Easy Maintenance – Simple design with replaceable seat and easily accessible components.
Technical Specifications
| Body Material | Cast Iron |
| Disc Material | Stainless Steel |
| Seat Material | NBR (Nitrile Rubber) |
| Stem / Shaft | Stainless Steel |
| Pressure Rating | PN16 / 16 Bar |
| Temperature Range | -10 °C to +80 °C |
| Connection Type | Wafer type (between flanges) |
| Mounting Standard | ISO 5211 (for direct actuator installation) |
| Body Coating | Epoxy / Powder coating for corrosion resistance |
| Operation | Manual lever |
Applications
The Wafer Butterfly Valve with NBR Seat 16 Bar is suitable for a wide range of industries and applications requiring reliable flow isolation or control. Its NBR seat provides excellent sealing properties, making it ideal for systems handling water, oils, and non-aggressive fluids. Common applications include:
- Water and wastewater treatment plants
- Oil and fuel transport systems
- HVAC and chilled water systems
- Cooling and circulating water networks
- Irrigation and agricultural pipelines
- Firefighting and water supply systems
- Industrial process pipelines and general utility services
Performance and Reliability
This valve is built to meet international standards, ensuring dependable sealing and flow regulation even under variable operating conditions. The stainless-steel disc provides low flow resistance and high corrosion resistance, while the flexible NBR seat maintains a bubble-tight seal. Its compact design and lightweight construction make it an excellent choice for both new installations and system retrofits.
Why Choose Our Wafer Butterfly Valve?
Our valves are precision-engineered for superior performance and durability. Each unit is factory-tested to ensure sealing integrity and operational reliability. The combination of a robust body, corrosion-resistant materials, and a resilient NBR seat ensures excellent long-term value. Whether operated manually or automated through actuators, this valve delivers consistent, smooth, and leak-free operation in every cycle.
For enhanced reliability and performance, pair our Wafer Butterfly Valve with NBR Seat 16 Bar with Thornado’s high-quality fittings and accessories. Experience the quality and engineering excellence trusted across Australia for industrial and commercial fluid control applications.
|
Test Pressure | Shell Test | 2.4 MPa |
| Seal Test | 1.76 MPa |
| Air Test | MPa |
| Suitable Temp. | -5°C – 80°C (NBR) |
|
Standard | Face to Face | ASME B16.10 |
| End Connection | AS2129 T/E/ ANSI 150 / PN16 |
| Valve Design | ISO 5752 / API 609 / BS EN593 |
| Valve Test | BS EN12266-1 |

| Dimensions (mm) |
| SKU | NPS | DN | A | B | C | H | E | ⌀d1 | ⌀m | H1 | L |
| 8407.02.50 | 2″ | 50 | 161 | 80 | 42.04 | 30 | 11 | ⌀50 | ⌀7 | 32 | 262 |
| 8407.02.65 | 2 1/2″ | 65 | 175 | 89 | 45.68 | 30 | 11 | ⌀50 | ⌀7 | 32 | 262 |
| 8407.02.80 | 3″ | 80 | 181 | 95 | 45.21 | 30 | 11 | ⌀50 | ⌀7 | 32 | 262 |
| 8407.02.94 | 4″ | 100 | 200 | 114 | 52.07 | 30 | 11 | ⌀70 | ⌀10 | 32 | 262 |
| 8407.02.95 | 5″ | 125 | 213 | 127 | 55.36 | 30 | 14 | ⌀70 | ⌀10 | 32 | 262 |
| 8407.02.96 | 6″ | 150 | 226 | 139 | 55.75 | 30 | 14 | ⌀70 | ⌀10 | 32 | 262 |
| 8407.02.98 | 8″ | 200 | 260 | 175 | 60.58 | 34 | 17 | ⌀102 | ⌀12 | 40 | 365 |
| No. | PART | Qty | MATERIAL |
| 1 | Body | 1 | CI |
| 2 | Bushing | 2 | PTFE |
| 3 | Seat | 1 | NBR |
| 4 | Shaft | 1 | SS416 |
| 5 | Disc | 1 | CF8M |
| 6 | Tapper Pin | 1-2 | SS316(5″ and blow:1pc;6″ and above:2pcs) |
| 7 | Bushing | 2 | PTFE |
| 8 | O-Ring | 1 | NBR |
| 9 | Lever | 1 | Malleable Iron |
| 10 | Name Plate | 1 | SS304 |
| 11 | Plate Rivet | 2 | Aluminium |
The ARITA Series body design neck with octagon shape offers aesthetic appearance, strength and compatible flange connection to international standards. Its top flange is designed to ISO5211 for the direct mounting of gear operator or actuators which eliminate the cost of mounting bracket. The one piece design body provides outstanding protection against particle entrapment and bacterial growth. ARITA offers various materials for the valves seat and disc to meet the various requirements of customers. The fine finishing of seat surfaces and the polished edge of disc give good sealing and reduction in operating torque.
Key Features and Benefits
- High Pressure Rating – Rated up to 16 bar for reliable operation in industrial and water systems.
- Durable NBR Seat – Excellent resistance to oils, water, and mild chemicals for long service life.
- Compact Wafer Design – Easily installed between flanges, reducing space and weight requirements.
- Corrosion-Resistant Body – Epoxy-coated cast or ductile iron body for superior protection against rust and wear.
- Stainless Steel Disc & Shaft – Ensures strength, corrosion resistance, and smooth operation.
- ISO 5211 Mounting Pad – Enables direct actuator mounting for automation or easy manual operation.
- Low Operating Torque – Smooth opening and closing reduce actuator strain and extend valve life.
- Versatile Applications – Suitable for water, oil, HVAC, and general industrial systems.
- Easy Maintenance – Simple design with replaceable seat and easily accessible components.
Technical Specifications
| Body Material | Cast Iron |
| Disc Material | Stainless Steel |
| Seat Material | NBR (Nitrile Rubber) |
| Stem / Shaft | Stainless Steel |
| Pressure Rating | PN16 / 16 Bar |
| Temperature Range | -10 °C to +80 °C |
| Connection Type | Wafer type (between flanges) |
| Mounting Standard | ISO 5211 (for direct actuator installation) |
| Body Coating | Epoxy / Powder coating for corrosion resistance |
| Operation | Manual lever |
Applications
The Wafer Butterfly Valve with NBR Seat 16 Bar is suitable for a wide range of industries and applications requiring reliable flow isolation or control. Its NBR seat provides excellent sealing properties, making it ideal for systems handling water, oils, and non-aggressive fluids. Common applications include:
- Water and wastewater treatment plants
- Oil and fuel transport systems
- HVAC and chilled water systems
- Cooling and circulating water networks
- Irrigation and agricultural pipelines
- Firefighting and water supply systems
- Industrial process pipelines and general utility services
Performance and Reliability
This valve is built to meet international standards, ensuring dependable sealing and flow regulation even under variable operating conditions. The stainless-steel disc provides low flow resistance and high corrosion resistance, while the flexible NBR seat maintains a bubble-tight seal. Its compact design and lightweight construction make it an excellent choice for both new installations and system retrofits.
Why Choose Our Wafer Butterfly Valve?
Our valves are precision-engineered for superior performance and durability. Each unit is factory-tested to ensure sealing integrity and operational reliability. The combination of a robust body, corrosion-resistant materials, and a resilient NBR seat ensures excellent long-term value. Whether operated manually or automated through actuators, this valve delivers consistent, smooth, and leak-free operation in every cycle.
For enhanced reliability and performance, pair our Wafer Butterfly Valve with NBR Seat 16 Bar with Thornado’s high-quality fittings and accessories. Experience the quality and engineering excellence trusted across Australia for industrial and commercial fluid control applications.
|
Test Pressure | Shell Test | 2.4 MPa |
| Seal Test | 1.76 MPa |
| Air Test | MPa |
| Suitable Temp. | -5°C – 80°C (NBR) |
|
Standard | Face to Face | ASME B16.10 |
| End Connection | AS2129 T/E/ ANSI 150 / PN16 |
| Valve Design | ISO 5752 / API 609 / BS EN593 |
| Valve Test | BS EN12266-1 |

| Dimensions (mm) |
| SKU | NPS | DN | A | B | C | H | E | ⌀d1 | ⌀m | H1 | L |
| 8407.02.50 | 2″ | 50 | 161 | 80 | 42.04 | 30 | 11 | ⌀50 | ⌀7 | 32 | 262 |
| 8407.02.65 | 2 1/2″ | 65 | 175 | 89 | 45.68 | 30 | 11 | ⌀50 | ⌀7 | 32 | 262 |
| 8407.02.80 | 3″ | 80 | 181 | 95 | 45.21 | 30 | 11 | ⌀50 | ⌀7 | 32 | 262 |
| 8407.02.94 | 4″ | 100 | 200 | 114 | 52.07 | 30 | 11 | ⌀70 | ⌀10 | 32 | 262 |
| 8407.02.95 | 5″ | 125 | 213 | 127 | 55.36 | 30 | 14 | ⌀70 | ⌀10 | 32 | 262 |
| 8407.02.96 | 6″ | 150 | 226 | 139 | 55.75 | 30 | 14 | ⌀70 | ⌀10 | 32 | 262 |
| 8407.02.98 | 8″ | 200 | 260 | 175 | 60.58 | 34 | 17 | ⌀102 | ⌀12 | 40 | 365 |
| No. | PART | Qty | MATERIAL |
| 1 | Body | 1 | CI |
| 2 | Bushing | 2 | PTFE |
| 3 | Seat | 1 | NBR |
| 4 | Shaft | 1 | SS416 |
| 5 | Disc | 1 | CF8M |
| 6 | Tapper Pin | 1-2 | SS316(5″ and blow:1pc;6″ and above:2pcs) |
| 7 | Bushing | 2 | PTFE |
| 8 | O-Ring | 1 | NBR |
| 9 | Lever | 1 | Malleable Iron |
| 10 | Name Plate | 1 | SS304 |
| 11 | Plate Rivet | 2 | Aluminium |
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