Rising Stem Manual Knife Gate valve

• Media: Oil/Pulp/Slurry/Water
• Temperature: Ordinary Temperature
• Type: Straight-through
• Material: Stainless Steel,Carbon Steel
• Connection Form: Wafer/Flange
• Pressure: Low Pressure
• Model NO.: DN50-DN600
• Actuator: Manual
• Seal Surface: EPDM/PTFE/Brass/Alloy
• Thread Position of Valve Rod: Inside Gate Valve
• Usage: Flow Control
• Standard: GB/ANSI
• Application: Industrial Usage, Water Industrial Usage
• Transport Package: Standard Marin Packing
• Specification: DN50-DN600
• Trademark: ZONY
• Origin: China
• Production Capacity: 5000

Product Description

The Rising Stem  knife gate valve is a kind of knife gate valve. During the opening and closing process, the driving device is coaxial with the valve stem gate, the opening torque is small, and the operation is convenient and labor-saving.It has the advantages of light weight, simple structure, reliable sealing, long service life, and effective cutting of fibers in the medium.The sealing principle is that when the gate is closed to the bottom, the chamfered surface of the gate touches the wedge on the valve body to make the gate close to the sealing surface to achieve a sealing effect, and the chamfered surface at the bottom of the gate has the function of cutting off the medium, so that The valve is not easy to be blocked by debris, and it can also scrape off the adhesion on the sealing surface and automatically remove the debris. The stainless steel gate can prevent the seal leakage caused by corrosion.It is suitable for fluids that are difficult to control, such as slurry, powder, and fiber, and is widely used in papermaking, petroleum, chemical, drainage, food and other industries.

Materials of main part
Body,Bonnet	Gate	Valve stem	Sealing face
Stainless steel,carbon steel,gray cast iron	Stainless steel,carbon steel	Stainless steel	Rubber,PTFE,stainless steel,hard alloy

Main Performance Specifications
Nominal Pressure(MPa)	Shell Test(MPa)	Seal Test(MPa)	Working Temperature	Suitable Medium
1.0             1.6	1.5 2.4	1.1 1.8	Rubber<=80°C, PTFE<=180°C,Alloy≤425°C	Pulp, sewage, coal ash, slag water mixture

Size Range:	DN50~600mm   NPS 2"-24"  (Larger size on request)
Max Working Press.:	DN50~DN250: 10Bar  NPS2~NPS10:150Psi      DN300~DN450: 7Bar  NPS12~NPS18:90Psi      DN500~DN600: 4Bar  NPS20~NPS24:60Psi
Temp. Range:	-29...+800ºC
Seal Tightness:	According to MSS SP-81
Body Material:	Carbon Steel, Stainless Steel, Special Allory
Gate Material:	Stainless Steel Chrome Plated, Special Allory
Seat Material:	Stainless Steel+STL      EPDM (120°C) /Viton(200°C)/PTFE(200°C) /NBR(90°C)
Face to Face:	MSS SP-81
Flange Standard:	GB/T 9113.1, JB/T 79.1, HG 20592, ASME B16.5, EN1092-1
Applications:	Pulp & Paper,  Water Treatment,Beverage & Food,Fine Chemical,       Power Planet,Steel Industry, etc.