Knife Valve
Knife gate valve, also known as knife valve, slurry valves in mining, and mud valves employ gate action movement to open and close. Medium, usually thick liquids, fibrous materials like pulp, or gasses, is cut by a blade-shaped gate with two sealing surfaces that are aligned perpendicular to the flow of the medium. The most commonly used mode gate valves form a wedge where the two sealing surfaces meet. The wedge angle varies with the valve parameters, usually 5.°
Product Description
The knife valve body does not have an actual cavity. The gate is lifted and lowered in the side guide groove and is pressed against the valve seat by the lug at the bottom. If medium to high tightness is required, an o-shaped valve seat can be used to create a two-way seal. The gate of a wedge knife gate valve can also be made into one; when it is modified in this way, it is called a rigid brake. Additionally, it is made into a brake that can produce slight deformation to improve its ability to process media and make up for the deviation of the sealing surface angle during processing; when it is modified in this way, it is called an elastic brake.
Most knife gate valves are self-sealing. When the knife gate valve is closed, the sealing surface can be sealed only by medium pressure. This occurs when the sealing surface of the gate is pressed against the valve seat on the other side of the gate to ensure the sealing of the surface. In the case of forced sealing, that is, when the valve is closed, it is necessary to rely on external force to seal the valve gate to the valve seat, ensure the tightness of the sealing surface. This type of knife valve should generally be installed vertically in the pipeline.
Knife Valve Structure
Product Features
Product Parameters
- The knife valve can be controlled locally or by remote. Remote position display and centralized control can be customized as required.
- Lightweight body- the body is composed of carbon steel, which is approximately 20%-30% lighter than traditional gate valves, making installation and maintenance easier.
- The knife valve can improve the performance of closing and sealing of the transportation pipeline system, prevent maximum leakage, and plays a positive role in improving production efficiency and environmental protection.
- The sealing surface is made of highly wear-resistant and corrosion-resistant ceramic materials. Mosaic technology has high corrosion and wear-resistance, extending the life of the valve and increasing cost-effectiveness.
| Standard | EN1092, MSS SP81, JIS 10K |
| Body Material | ductile iron (GGG40) or stainless steel (CF8, CF8M) |
| Connection | wafer type, lug type, or semi-lug type |
| Rate | PN10, Class 150, 10K |
| Seat | EPDM, Viton, Metal, PTFE, NBR |
| Operation | handwheel, pneumatic, electric, chain wheel, lever |
| Flange Standard | EN1092-2, BS10, T/E, T/D, MSS SP-81 |
| Inspection & Testing | BS EN 12266-1/AWWA C520 |
| Working Temperature | -20ºC to 100ºC(-4°F to 212°F) |
Valve Selection Guide
Export Ball Valve, Knife Gate Valve, Ceramic Valve, Gate Valve
Our Company
Over the past 15 years, Minerco has offered our clients pumping solutions to trusted the world over. Our core team of professional engineers has perfected the centrifugal slurry pump design to give you the best product on the market. Our slurry pumps and spares are interchangeable with the Warman model and parts and come with a 100% risk-free guarantee.
Our Promise- Reliable Quality & Professional Service
Your satisfaction is our number one priority. We welcome your feedback and are always looking for opportunities to improve our service. Our business philosophy is simple:
Quality control– We want to assure you of the perfection of our products, which is why we employ in-house quality management and process inspection team.
Fast, reliable service– We aim to meet the demands of all of our customers quickly and effectively. Our work is not complete until you are satisfied.
Supply support capacity– We understand no two operations are the same and that different jobs require different tools- that is why we take pride in the fact that it is well-stocked with a wide, diverse range of products.
Competitive pricing– We believe we offer the best product possible for the cost.
FAQ
Guarantee
Q1: What is your product range?
A: Our range of centrifugal pumps includes slurry pumps, gravel pumps, clean water pumps, sewage pumps, and chemical pumps, both as whole pumps and spares, knife gate valve, ball valves etc.
Q2: What’s your MOQ?
A: Our MOQ for a centrifugal pump is 1 set.
Q3: What are your accepted forms of payment?
A: T/T, L/C, Western Union, and PayPal.
Q4: How long is your lead time?
A: In general, lead times are seven working days for a slurry pump,15 working days for a water pump, and seven working days for pump spares.
Q5: What information I need to offer a quotation?
A: Liquid:___ ; Pump Capacity___m3/h ; PH:_____ ; Pump Head: ___m ; Specific of gravity___ ; Voltage ___V ; Frequency ___Hz
Q6: Are OEM
parts available?
A: Yes. Please send a detailed drawing.
We are so confident in the quality of our pump and pump spares that we offer one of the only 100% free test and trial in the market.
We offer a free trial- if you are not satisfied after trying our Warman type pumps and spares, call us at +86 3125060076, and we will work with you to address your concerns.
If no resolution can be reached, simply return us the product, and we will refund your money, minus the shipping charges.
