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Concealed blade gate valve
The concealed plate knife gate valve developed and produced by Zhejiang Haidun is a knife type gate valve with a valve cover. It has a beautiful appea
Product details
Product Specifications
caliber
DN 50~600mm NPS 2”-24” (大口径按需定制)
Valve body material
Cast steel, stainless steel, special materials
Gate material
Stainless steel, special material
seat material
不锈钢+ STL / NBR(90°C) / EPDM (120°C)
Viton(200°C)/PTFE(200°C)
Viton(200°C)/PTFE(200°C)
Maximum working pressure
DN50~DN250: 10Bar NPS2~NPS10：150Psi
DN300~DN450: 7Bar NPS12~NPS18：90Psi
DN500~DN600: 4Bar NPS20~NPS24： 60Psi
structural length
MSS SP-81
Flange Standard
GB/T 9113.1, JB/T 79.1,HG 20592,
ASME B 16.5, EN1092-1
Scope of application
Pulp and paper making/wastewater treatment/mining/metallurgy/petrochemicals/printing and dyeing
Pharmaceutical industry/beverage and food industry
Product Introduction:
1. Valve body
a) The knife gate valve adopts an integral structure, ultra-thin valve body, and full bore flow channel. Greatly avoids medium leakage, flow loss, cost savings, and is easy to install and use.
b) The bottom of the valve body channel adopts a fixed guide claw to fix the gate plate, replacing the groove design, thus avoiding the phenomenon of slag jamming caused by the accumulation of medium when the valve is closed.
c) The upper valve cover design completely isolates the valve cavity from the outside, achieving zero leakage of the packing seal and avoiding medium leakage from the packing.
2. Gate plate
a) The bottom of the gate adopts a knife shaped circular arc design, so the gate has a strong shear effect and excellent sealing effect on the medium during its movement, especially suitable for controlling pulp and fiber containing media.
b) The valve plate adopts PTFE point guidance, which has low friction and avoids damage to the valve plate.
c) The thickness of the gate can be further increased according to the actual pipeline pressure.
3. Valve seat
a) The valve adopts a replaceable valve seat design (non integral seal), and only the valve seat needs to be replaced after the sealing surface wears out, which facilitates the maintenance of the valve in the later stage, prolongs the service life of the entire valve, and reduces the equipment usage cost for customers.
b) The replaceable valve seat design uses a valve seat cover to pre tighten the valve seat. When the sealing surface is not tightly sealed, adjusting the fixing screws of the valve seat cover can improve the sealing effect.
4. Other
The dual bearing design reduces the torque of the valve and facilitates its opening and closing.
The concealed plate knife gate valve developed and produced by Zhejiang Haidun is a knife type gate valve with a valve cover. It has a beautiful appearance, is lightweight, and compact structure, and can be manually or pneumatically controlled. The valve cover design of the concealed plate knife gate valve greatly improves the sealing at the packing of the knife gate valve, thereby avoiding the leakage of the medium from the packing. It is very suitable for switching operations of gases and toxic media.
1. Valve body
a) The knife gate valve adopts an integral structure, ultra-thin valve body, and full bore flow channel. Greatly avoids medium leakage, flow loss, cost savings, and is easy to install and use.
b) The bottom of the valve body channel adopts a fixed guide claw to fix the gate plate, replacing the groove design, thus avoiding the phenomenon of slag jamming caused by the accumulation of medium when the valve is closed.
c) The upper valve cover design completely isolates the valve cavity from the outside, achieving zero leakage of the packing seal and avoiding medium leakage from the packing.
2. Gate plate
a) The bottom of the gate adopts a knife shaped circular arc design, so the gate has a strong shear effect and excellent sealing effect on the medium during its movement, especially suitable for controlling pulp and fiber containing media.
b) The valve plate adopts PTFE point guidance, which has low friction and avoids damage to the valve plate.
c) The thickness of the gate can be further increased according to the actual pipeline pressure.
3. Valve seat
a) The valve adopts a replaceable valve seat design (non integral seal), and only the valve seat needs to be replaced after the sealing surface wears out, which facilitates the maintenance of the valve in the later stage, prolongs the service life of the entire valve, and reduces the equipment usage cost for customers.
b) The replaceable valve seat design uses a valve seat cover to pre tighten the valve seat. When the sealing surface is not tightly sealed, adjusting the fixing screws of the valve seat cover can improve the sealing effect.
4. Other
The dual bearing design reduces the torque of the valve and facilitates its opening and closing.
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| Haidun Product Catalog | Zhejiang Haidun Special Valve Co., Ltd |
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