What is a Knife Gate Valve?
A knife gate valve is a specific design of a valve that uses a knife edge that can enter the flow stream and, if necessary, use the edge of the gate to separate any materials that might prevent the valve from sealing completely.
Knife Gate Valve Suppliers In South Africa
AVK Valves Southern Africa
Address: 10 Chris St, Alrode, Alberton, 1451, South Africa
Hours: Closes soon ⋅ 4 pm ⋅ Opens 8 am Wed
Phone: +27 11 908 3760
LVSA GROUP – VALVE MANUFACTURER IN SOUTH AFRICA
Address: 46 Kindon Rd, Robertsham, Johannesburg, 2091, South Africa
Hours: Open ⋅ Closes 5 pm
Phone: +27 31 054 7650
Bovaco Manufacturing CC
Address: ERF721 Premier Rd, Germiston South, Germiston, 1401, South Africa
Hours: Open ⋅ Closes 4:30 pm
Phone: +27 11 825 6735
Sanspar Engineering Sales Pty Ltd – Industrial Valves Supplier – Butterfly Valves – Gate Valves
Address: 1 La Belle Rd, Stikland Industrial, Cape Town, 7530, South Africa
Areas served: Limpopo and nearby areas
Hours: Open ⋅ Closes 5 pm
Phone: +27 21 511 0283
CMO Valves
Address: Newmarket Commercial Park 39 Heidelberg Avenue Newmarket, Alberton, 1450, South Africa
Hours: Closes soon ⋅ 4 pm ⋅ Opens 8 am Wed
Phone: +27 10 595 8566
Industrial Valve & Engineering Supplies Pty Ltd
Address: 114 Plane Rd, Spartan, Kempton Park, 1619, South Africa
Hours: Open ⋅ Closes 5 pm
Phone: +27 11 394 2066
Ragon Industries (Pty) Ltd
Address: 6 Escallonia St, Montana Park, Pretoria, 0182, South Africa
Hours: Closes soon ⋅ 4:30 pm ⋅ Opens 7:30 am Wed
Phone: +27 12 548 0834
LVSA Group Pty Ltd – VALVE MANUFACTURER IN SOUTH AFRICA
Address: 8 Uitsig Rd, Astra Park Kingsburgh, Durban, 4126, South Africa
Hours: Open ⋅ Closes 5 pm
Phone: +27 31 054 7650
Shadeco Valves & Controls
Address: Heavy Industrial Area, 4 Pullinger Street West Warehouse, Westonaria, 1911, South Africa
Hours: Open ⋅ Closes 5 pm
Phone: +27 11 753 1045
Valve Specialists Gauteng
Address: Unit 3, 11 Venda St, Sebenza, Edenvale, 1469, South Africa
Areas served: Mpumalanga and nearby areas
Hours: Closes soon ⋅ 4:15 pm ⋅ Opens 8 am Wed
Phone: +27 11 397 6922
What are the disadvantages of a knife gate valve?
One of the most notable disadvantages of knife gate valves is that they’re known to have low-pressure limitations. This makes them less desirable for use in applications that require cleanliness or sanitary conditions.
Do knife gate valves leak?
These Valves are also restricted to low pressures and not recommended with gases or powder. When dry solid powder passes through a knife gate valve, it tends to pack into the soft seals around the gate and the seat over a time will wear, eventually, the gate will not close and start to leak dry dust
What are the benefits of a knife gate valve?
Knife gate valves are designed mainly for on-off and isolation services in systems with high content of suspended solids. Knife gate valves are especially beneficial for handling slurry in addition to viscous, corrosive, and abrasive media.
What is the preventive maintenance for the knife gate valve?
When knife gate valves are not in use over a long period of time, the valve should be cycled at least every six months, and if in storage, the packing should be loosened to extend the life of the packing. It’s also important to tighten the packing gland as needed.
Do gate valves need maintenance?
Gate Valve’s require periodic maintenance to inject a lubricant into the valve cavity. The purpose of the lubricant is to occupy the empty space in the valve cavity, displacing aggressive fluids and contaminants and acting as a barrier to prevent further ingress.