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In this video, DSS Valves Vice President Jim Pellegrini introduces the flagship product – The DSS Severe Service Knife Gate Valve (SSKGV). The SSKGV is the world’s premier knife gate valve and is equipped with the Guided Shear Gate design to cut through scale, fiber, solids, paste and anything else you can imagine found in the harshest of industrial processes. The SSKGV is the only tested and proven knife gate valve with the ability to provide repeatable bi-directional zero leakage isolation when solids are present in the pipeline. Visit www.dssvalves.com to learn more. We look forward to working with you.
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PRODUCT | Severe Service Knife Gate Valve – DSS Valves
The key differentiation to the Severe Service Knife Gate Valve is the Gued Shear Gate design. Composed of a shearing tip and internal gate …
Source: www.dssvalves.com
Date Published: 1/18/2021
View: 2792
SEVERE SERVICE KNIFE GATE VALVE
DSS Severe Service Knife Gate Valves are fully compliant to MSS SP-135 pressures. Face-to-Face compliant with MSS SP-135. Non-rising stem made from stainless …
Source: www.bafcon.com.tr
Date Published: 9/14/2022
View: 491
DSS Severe Service Knife Gate Valves
DSS Severe Service Knife Gate Valves are designed and manufactured for Severe Service and Trouble-Free Isolation Knife Gate Valve to handle harsh media …
Source: lctech-engineering.com
Date Published: 12/21/2021
View: 248
DSS SSKGV Severe Service Slurry Knife Gate Valve
The Severe Service Knife Gate Valve by DSS has a zero-leakage birectional design that exceeds specifications set by ASME, API, and MSS up to Class 900.
Source: www.beaverprocess.com.au
Date Published: 8/10/2021
View: 7627
Model KS1 Severe Service Knife Gate Valve, Clarkson …
CLARKSON SEVERE SERVICE KNIFE GATE VALVES. MODEL KS1. FEATURES. • True bi-directional flow and zero leakage shut-off; can be installed in either direction.
Source: www.emerson.com
Date Published: 3/6/2022
View: 6261
DeZURIK KSV SEVERE SERVICE KNIFE … – Zurich Peru Valves
The KSV Severe Service Knife Gate valve is specially designed to withstand high pressures and abrasive slurries – some of the toughest services …
Source: www.zurich-valves.pe
Date Published: 10/13/2022
View: 2146
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주제에 대한 기사 평가 severe service knife gate valve
- Author: DSS VALVES
- Views: 조회수 5,090회
- Likes: 좋아요 33개
- Date Published: 2020. 4. 6.
- Video Url link: https://www.youtube.com/watch?v=g32ErWhoSds
What is the difference between a gate valve and a knife gate valve?
A knife gate valve is a component that utilizes a blade to cut through clogging of heavy liquids; whereas a slide gate valve is a component utilizing a slide plate in order to better manipulate or control the flow of dry bulk material. Knife gate valves were originally designed for use in the pulp and paper industry.
What is a bonneted knife gate valve?
Pratt® bonneted knife gate valves have a cast stainless steel body, gland and yoke, and is ideally suited to reduce fugitive emissions and packing leakage. The wiper between the body and bonnet prevents solids from entering the bonnet.
Is code for knife gate valve?
| Hs Code | Description |
|---|---|
| 40169390 | Other |
| 8481 | Taps, Cocks, Valves And Similar Appliances For Pipes, Boiler Shells, Tanks, Vats Or The Like, Including Pressure-Reduci |
| 84819090 | Other |
| 84818030 | Industrial valves (excluding pressure-reducing valves, and thermostatically controlled valves) |
How does a knife gate valve work?
How does a knife gate valve work? A knife gate valve works by allowing thick media to easily flow over soft seals with no interference. They work by chopping up the media as it passes through the valve. Today knife gate valves are used in numerous processing plants all over the world and come in large sizes.
What are knife valves used for?
A knife gate valve is a component that utilizes a blade to cut through clogging of heavy liquids. These valves were designed to work in some of the most corrosive, erosive and abrasive environments in the world. Knife gate valves were originally designed for the pulp and paper industry.
How many types of gate valves are there?
Gate valves can be divided into two main types: Parallel and wedge-shaped.
What are gate valves made of?
Gate valves are typically constructed from cast iron, cast carbon steel, ductile iron, gunmetal, stainless steel, alloy steels, and forged steels.
When would you use a knife gate valve?
Knife gate valves should only be used for applications requiring a completely open or completely closed position and should not be used to regulate flow unless they are designed for it. Whenever fluid is forced against a partially closed gate, there will be a vibration, gradually eroding the disc and seat.
What is the maximum pressure handled by instrument valves?
These high quality valves perform in system pressures up to 150,000 psi.
What is a gate valve used for?
A gate valve is generally used to completely shut off fluid flow or, in the fully open position, provide full flow in a pipeline. Thus it is used either in the fully closed or fully open positions. A gate valve consists of a valve body, seat and disc, a spindle, gland, and a wheel for operating the valve.
What is the difference between a sluice gate and a slide gate?
The terms sluice, sluice gate, knife gate, and slide gate are used interchangeably in the water and wastewater control industry. They are also used in wastewater treatment plants and to recover minerals in mining operations, and in watermills.
What is a gate valve used for?
A gate valve is generally used to completely shut off fluid flow or, in the fully open position, provide full flow in a pipeline. Thus it is used either in the fully closed or fully open positions. A gate valve consists of a valve body, seat and disc, a spindle, gland, and a wheel for operating the valve.
What type of valve is a butterfly valve?
The butterfly valve is classified as a quarter-turn valve. It works like a ball valve for quick shutoff, but unlike a ball valve, the butterfly valve can also open and close incrementally. This difference means that the disc is always present in the flow and allows for a drop in pressure.
How does a slide valve work?
When the slide valve slides to one side, it uncovers the intake port and allows steam to fill the cylinder. This steam pushes on the piston, found inside the cylinder, and the piston in turn pushes on a rod that turns the flywheel. The flywheel turns to create motion so the steam engine can move.
What is slide gate?
A sliding gate is a fence that can be rolled to one side. Sliding gates provide a practical, safe, secure, and recognizable entryway to terrains. A sliding gate is a flexible fence that has wheels at the bottom. A sliding gate does not have a turning circle, so it is easy to open and close.
Severe Service Knife Gate Valve
DSS Valves are Designed for Severe Service.
North America’s most reliable knife gate valve.
The DSS Severe Service Knife Gate Valve (SSKGV) is our premier valve. This design didn’t happen overnight though; our team of engineers spent decades improving and perfecting every last detail so that you can be confident it will do what you need it to. The bi-directional zero-leakage design exceeds API, ASME, and MSS specifications all the way up to ASME Class 1500/PN 250 (3750 psig/250 barg) – but we’ll go higher if you want us to.
The key differentiation to the Severe Service Knife Gate Valve is the Guided Shear Gate design. Composed of a shearing tip and internal gate guides, this design feature ensures our SSKGVs can cut through all media including solids, scale , fiber and paste.
What’s the Difference between a Knife Gate and a Slide Gate?
Valve suppliers often receive quote requests for a “knife gate” when what a company is really looking for is a “slide gate” for dry bulk material handling. As often as the two terms are intermingled, a knife gate and a slide gate are NOT the same. A knife gate valve is a component that utilizes a blade to cut through clogging of heavy liquids; whereas a slide gate valve is a component utilizing a slide plate in order to better manipulate or control the flow of dry bulk material.
Knife Gates are to cut through thick liquids and gases
Knife gate valves were originally designed for use in the pulp and paper industry. Utilizing a sharp, beveled edge, a knife gate was ideally designed to cut through the stringy pulp encountered in the pulp and paper industries. The benefits of knife gates also include that they are easy to actuate and cheap to produce. As a result, use of knife gate valves quickly expanded into numerous other markets, including wastewater treatment, oil and gas, mining, and power, in a short period of time. Knife gate valves became advantageous in sludge and slurry applications because their blades can cut right through thick liquids easily.
Today, a knife gate valve can be found in many processing plants. They are available in large sizes to better handle thick flows of heavy oils, light grease, slurry, paper pulp, varnish, and wastewater. However it is important to note that knife gate valves have low-pressure limitations.
Even though knife gates handle liquids and gases well, their utility is greatly diminished when used in dry bulk applications. The knife gate is designed to seat the blade into an elastomer seal after the blade cuts through the material. Thick liquids easily glide over these soft seals with no interference. In contrast, when a powder or a solid passes through a knife gate, the dry bulk material packs into the soft seals against the end of the gate. The seals become abraded and, over time, the blade will not close tightly. This prevents positive air and material shutoff. The knife gate starts to leak material dust.
In both situations, you will need to replace the knife gate’s seals once it begins to dust, and depending on the valve and its placement, it may be necessary to remove the entire valve out of the system line to replace the seals. This can be cumbersome as knife gates are generally constructed of heavy metal cast iron. The weight of the valve makes it very difficult to maintain while in place, or to replace. Further, removal of a knife gate for maintenance purposes will result in downtime, decreased production and negatively impact revenue streams.
Slide Gates are to shut off dry material flow
Unlike common knife gates, a slide gate is a component that fits into a system specifically engineered to handle dry bulk powders, pellets, and granules. Slide gate valves are linear motion valves in which a flat plate slides into the flow stream to provide a shut-off of material or air. The gate can close or open the slide plate on a moving column of material at all times. The slide plate of the gate is not, in most applications, open or exposed to people. Thus, when used as designed and instructed, this type of valve is inherently safe to perform what it was designed to do. A slide plate provides no risk or hazard to the operator inside the system so long as the operator is following proper Lockout/Tagout procedures and has disabled any pneumatic sources.
A slide gate utilizes a stainless steel, rectangular slide plate to shut off or open the flow of dry material. The slide plate actuates between two, compression-loaded, hard polymer plates. In the closed position, the compression load on the blade prevents the dry bulk material and the conveying air from escaping through the valve or into the plant’s atmosphere. Because knife gates do not have hard polymer plates to seal the blade during actuation, a cavity is created where material dust will accumulate. The slide gate valve also “self-cleans” material from the seat on each stroke of the slide plate to prevent bridging or packing of material.
The slide gate’s hard polymer seals compensate for wear unlike the knife gate. Once a knife gate’s seals wear, they start to leak and must be replaced. The hard polymer seals are reinforced by a compressed, hard rubber backing. As a slide gate experiences frictional wear to the hard polymer seals from many actuations over time, the rubber backing ensures the hard polymer seals are constantly being forced against the slide plate.
At some point, the hard polymer seals will wear to a degree that even the compressed rubber backing begins to lose its effectiveness. Rather than replacing the polymer seal plates right away, the Orifice Gate valve features a patented shimming system. By simply loosening the bolts and removing shim(s) along each lateral aspect of the gate, the bolts can be re-tightened and the gate’s compression load will be restored. Should the Orifice Gate valve ever need to be removed from the conveying line, its modular construction is lightweight when compared to cast knife gates.
However, a slide gate is not designed to seal liquids. When the slide plate closes, it seats into a polymer seal that has no cavity. Hence, the liquid will find the path of least resistance and trickle through any opening. A slide gate is not bubble tight and will leak any liquids that are being conveyed. In contrast, a knife gate contains an elastomer o-ring seal or urethane o-ring seal packed into the seat, so the liquid is displaced.
When quoting a valve for your facility, consult your valve manufacturer to find out if a knife gate or a slide gate is the best valve for the material that you are handling. The dialogue that you have with your manufacturer can help you select the correct valve the first time, saving you replacement costs later.
Vortex Slide Gates Designed for Dry Bulk Materials
Henry Pratt Company
Pratt® bonneted knife gate valves have a cast stainless steel body, gland and yoke, and is ideally suited to reduce fugitive emissions and packing leakage. The wiper between the body and bonnet prevents solids from entering the bonnet. The body cavity, seat configuration, and beveled gate design provide shut off capability in thick media such as pulp stock and slurries, or solid media like pellets and powders.
Custom designed sizes, pressures and configurations are also available for our bonneted knife gate valves. If you have a unique application and can’t see the size and specifications you require, complete the quote request form or call us at 888-256-5779.
Knife gate valve HS Code for Export
Knife gate valve Import Data and Export Data | Knife gate valve HS code for Import and Export
The Knife gate valve import export trade sector contributes significantly to the overall GDP percentage of India. No wonder, the port is booming in this sector and at Seair, we better understand how to benefit you from this welcome opportunity. We comprehend the fact that the majority of import firms are active in sourcing distinct ranges of products including raw materials, machinery, and consumer goods, etc. Hence, we provide comprehensive import data solutions as well as export data solutions for broad categories of import trading firms and export trading firms too.
Our Knife gate valve import data and export data solutions meet your actual import and export requirements in quality, volume, seasonality, and geography. Alongside we help you get detailed information on the vital export and import fields that encompass HS codes, product description, duty, quantity, price, etc. The export import data from Seair paves the way for successful partnerships that generate profit for business from both the local and global precincts.
Why Use A Knife Gate Valve?
At BM Engineering, we supply a wide range of knife gate valves for an array of processes and industries. Knife gate valves are widely used across many industries that process very thick media, such as in pulp and paper, slurry and mining, water treatment, power generation and many more industrial applications. The question is why use a knife gate valve instead of another type of valve? In this article, we will be discussing the function of a knife gate valve and showcase different types of knife gate valves available from BME.
DSS Severe Service Knife Gate Valves « LC Tech Engineering Sdn Bhd
DSS is specializing in creating Guided Shear Knife Gate valves that provide Zero Leakage Isolation solutions in high-temperature, high-pressure, high-cycling, high solid abrasive and/or corrosive applications . It ensure safety of workers, lowers the overall cost of ownership, and decreases downtime for maintenance.
DSS Severe Service Knife Gate Valves are designed and manufactured for Severe Service and Trouble-Free Isolation Knife Gate Valve to handle harsh media solids as well as clean service in power plant ,steel, mining, pulp & paper, water/wastewater and oil and gas plants around the world.
Website: www.dssvalves.com
DSS SSKGV Severe Service Slurry Knife Gate Valve
The Severe Service Knife Gate Valve by DSS has a zero-leakage bidirectional design that exceeds specifications set by ASME, API, and MSS up to Class 900.
Its distinctive feature is a guided shear gate which consists of a shearing tip, mechanically retained axial seat, and internal gate guides. The guides completely support the gate through a full stroke and prevent any deflection. The shearing tip with a bevelled edge can cut through solids, fibre, paste, and scale repeatedly and flush them into the pipeline. A primary seal and transverse secondary seal work in tandem to prevent fugitive emissions, leakage, and discharge.
Designed for the harshest abrasive conditions, the DSS SSKGV provides true bidirectional zero-leakage isolation when solids are present in the pipeline. You can choose from a range of material options to handle any corrosive media.
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