Product Description
Grooved End Ductile Iron Wafer Type Water Butterfly Valve With Signal Gearbox For Fire Fighting
Pressure and temperature
Working pressure |
PN10, PN16, CL150, JIS 5K/10K |
Testing pressure |
Shell: 1.5 times rated pressure Seat: 1.1 times rated pressure |
Working temperature |
-10 °C to 80°C (NBR) -10 °C to 120°C (EPDM) -10 °C to 150°C (PTFE) |
Suitable media |
water, oil and gas |
Product detail
Parts |
Material |
Body |
Cast iron, Ductile iron, Carbon steel, Stainless steel. |
Seat |
EPDM, NBR, VITON, PTFE |
Disc |
Nickel ductile iron, AI bronze, Stainless steel, Carbon steel, Nylon |
Stem |
Carbon steel, Stainless steel |
Bushing |
PTFE |
“O” ring |
PTFE |
Pin |
Stainless steel |
Key |
Stainless steel |
Standard
Design Standard |
EN 593, MSS SP67, API 609, BS5155 |
Inspection & Test |
API 598, ISO 5208, EN 12266 |
End Standard |
ANSI: B16.1 CL 125LB; B16.5 CL 150LB; B16.47 150LB. AS: 2129 Table D & E BS 10 Table D & E DIN: 2501: PN6, PN10 & PN16 EN: 1092: PN6, PN10 & PN16 ISO 2531: PN6, PN10 & PN16 ISO 7005: PN6, PN10 & PN16 KS: B 1511 / JIS B 2210 5K & 10K MSS: SP44 CL. 150LB AWWAC207 SABS: 1123 Table 1000/3 & Table 1600/3 |
Face to Face |
ISO 5752, EN 558, MSS SP67, API 609 and DIN3202 |
Top Flange |
ISO 5211 |
Different Types of Butterfly Valve
We can produce various types of butterfly valves according to your requirement and drawings.
Production Equipment
Packing & Delivery
Company Profile
LIKE VALVE (ZheJiang ) Co., Ltd locates in ZheJiang -next to the largest sea port in North -ZheJiang seaport; with more than 20 years experienced managing, manufacturing and quality control team; make efforts to produce high level quality valves of China.
Like valve has design research and development, manufacturing, marketing and aftersale services. We have the independent R&D center, advanced manufacturing technology and strictly implement the relevant international standards.
With advanced engineering design approaches, well-developed manufacturing equipment, testing verification facilities and strict QC as per ISO9001 certificate system, we “Like Valve” ensure that each part in every product we supply is in high quality and performance.
We specialize in in water valves: such as butterfly valve, gate valve, check valve, Hydraulic control valve, strainers, WRAS certified material avaiable; and oil and gas valves such as: gate valve, globe valve, ball valve, check valve, strainers etc, with API 6D certificate; also and other series products. We also customize valves in different materials, pressure, size and other products, according to customers requirement.
“Like Valve” products have exported to more than 18 countries: such as USA, Argentina, Brazil, Russia, Spain, UAE, Morroco, India, Bangladesh etc; widely used in water supply and drainage, construction, electricity, oil and gas pipe, petrochemical, metallurgical and other industries. Product ingenuity, high quality and reasonable price, trusted by the user.
Products Categories
FAQ
Q1: What certificates can you offer?
A:ISO,CE,API 6D,WRAS
Q2: Do you accept OEM?
A:Yes
Q3: Can i get a sample?
A:Yes, of course.
Q4:What is your MOQ?
A:1 pcs acceptable, more discount for larger quantity.
Q5:If all products will do test?
A:Sure, our products is tested piece by piece before delivery, no sampling test.
Q6: What is the payment term.
A:T/T, L/C, Credit Card, or other by discussion
Q7: What is delivery time?
A:Common standard commonly material valves in 7-20 days according to quantity
Q8: What is the warranty?
A:Standard valves warranty: 1 year after delivery.
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Media: | Water |
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Driving Mode: | Manual |
Connection Form: | Grooved |
Samples: |
US$ 27/Piece
1 Piece(Min.Order) | Order Sample |
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Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Can a Worm Gearbox Be Used in Heavy-Duty Machinery?
Yes, a worm gearbox can be used in heavy-duty machinery and is often chosen for such applications due to its inherent characteristics and advantages:
- High Torque Transmission: Worm gearboxes are known for their ability to transmit high torque loads, making them suitable for heavy-duty machinery that requires significant power transmission.
- Load Distribution: The design of worm gears provides robust load distribution and excellent contact between the worm and worm wheel teeth. This enhances their load-carrying capacity, making them capable of handling heavy loads without premature wear or failure.
- Compact Design: Worm gearboxes are compact and offer high reduction ratios in a single stage. This allows for the reduction of high input speeds to lower output speeds, often required in heavy-duty machinery.
- Overload Protection: Worm gears have a natural self-locking feature, which means the gear cannot be easily back-driven by external forces. This feature provides inherent overload protection, preventing damage to the gearbox and machinery in cases of sudden load spikes.
- Smooth Operation: Worm gearboxes offer smooth and steady operation, which is crucial for heavy-duty machinery where precision and controlled movement are essential.
However, when considering the use of a worm gearbox in heavy-duty applications, it’s important to ensure proper engineering and sizing. The design should account for factors such as load, speed, duty cycle, lubrication, and temperature to ensure optimal performance and longevity.
Overall, worm gearboxes are well-suited for heavy-duty machinery across various industries, including mining, construction, manufacturing, and more.
Materials Used for Worm Gears
Worm gears are manufactured using a variety of materials to meet different application requirements. Some commonly used materials for worm gears include:
- Steel: Steel is a popular choice for worm gears due to its strength, durability, and wear resistance. It can handle heavy loads and is often used in industrial applications.
- Bronze: Bronze offers good lubricity and is commonly used for the worm gear (worm) component. It provides effective wear resistance and works well in applications where quiet operation is essential.
- Cast Iron: Cast iron is known for its high strength and durability. It’s often used for worm gears in applications where shock loads or heavy-duty conditions are expected.
- Aluminum: Aluminum worm gears are lightweight and corrosion-resistant, making them suitable for applications where weight reduction is important.
- Plastic: Some worm gears are made from plastic materials such as nylon or acetal. These materials are often chosen for their self-lubricating properties and quiet operation.
- Composite Materials: Composite materials can offer a combination of properties, such as lightweight construction and corrosion resistance. They can be suitable for specific applications.
The choice of material depends on factors such as the application’s load, speed, operating environment, and required performance characteristics. It’s important to consider these factors when selecting the appropriate material for worm gears to ensure optimal performance and longevity.
What is a Worm Gearbox and How Does It Work?
A worm gearbox, also known as a worm gear reducer, is a mechanical device used to transmit rotational motion and torque between non-parallel shafts. It consists of a worm screw and a worm wheel, both of which have helical teeth. The worm screw resembles a threaded cylinder, while the worm wheel is a gear with teeth that mesh with the worm screw.
The working principle of a worm gearbox involves the interaction between the worm screw and the worm wheel. When the worm screw is rotated, its helical teeth engage with the teeth of the worm wheel. As the worm screw rotates, it translates the rotational motion into a perpendicular motion, causing the worm wheel to rotate. This perpendicular motion allows the worm gearbox to achieve a high gear reduction ratio, making it suitable for applications that require significant speed reduction.
One of the key features of a worm gearbox is its ability to provide a high gear reduction ratio in a compact design. However, due to the sliding nature of the meshing teeth, worm gearboxes may exhibit higher friction and lower efficiency compared to other types of gearboxes. Therefore, they are often used in applications where efficiency is not the primary concern but where high torque and speed reduction are essential, such as conveyor systems, elevators, automotive steering systems, and certain industrial machinery.
editor by CX 2024-03-27