D73h Hard Sealed Butterfly Valve with Grip

• Media: Water Vapor Oils
• Driving Mode: Electromanual Pneumatic
• Connection Form: Flange Welding
• Structure: Three-Eccentric Sealing
• Seal Form: Supercharging Pressured Sealed
• Valve Stem: Normal
• Model NO.: D73H
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Sheet Metal
• Standard: National Standard
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Wooden Box
• Specification: DN50-DN2400
• Trademark: xc
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000

Product Description

 

Based on the introduction of foreign advanced technology, our factory adopts precision J-shaped elastic sealing ring and three-eccentric multi-level metal hard seal structure, which is widely used in the medium temperature ≤425ºC gold, electric power, petrochemical industry, water supply and drainage and municipal construction and other industrial pipelines, for regulating flow and load cutting body use.
The valve adopts three eccentric structure, the valve seat and plate sealing surface are made of different hardness and stainless steel, with good corrosion resistance, long service life, the valve mili-tary post two-way sealing function, the product meets the national GB/T13927-92 valve pressure test standard.
Features
1, the valve adopts three eccentric sealing structure, the valve seat and the butterfly plate almost no wear, with the more the tighter the sealing function.
2, the sealing ring is made of stainless steel, with the double advantages of metal hard seal and elastic seal, regardless of low temperature and high temperature, it has excellent sealing performance, corrosion resistance, long service life and other characteristics.
3. The sealing surface of the plate is surfacing cobalt-based cemented carbide, which is wear-resistant and has a long service life.
4, large specifications of the plate quilted structure, high strength, large flow area, small flow resistance.
5, the valve has a two-way sealing function, the installation is not limited by the flow of the medium, is not affected by the spatial position, can be installed in any direction.
6, the drive device can be multi-station (rotation 90° or 180°) installation, easy for users to use.

Main technical parameters

Nominal passage DN (mm)	50 to 2000
Nominal pressure PN (MPa)	0.6	1.0	1.6	2.5
Seal test (MPa)	0.66	1.1	1.76	2.75
Strength test (MPa)	0.9	1.5	2.4	3.75
Applicable temperature	Carbon steel: -29ºC ~ 425ºC Stainless steel: -40ºC ~ 650ºC
Applicable medium	Water, air, natural gas, oil and weakly corrosive fluids
Leakage rate	GB/T13927-92 compliant
Drive mode	Worm gear drive, electric, pneumatic, hydraulic

Main parts materials

Part name	Materials
Body	WCB, alloy steel, stainless steel, QT450-10
sphenoid	WCB, alloy steel, stainless steel, QT450-10
Valve shaft	2Cr13 stainless steel, alloy steel
Seal ring	Stainless steel ring
Stuffing	Flexible graphite

Adopted standard

Manufacturing standards	JB/T 8527-97
Flange standard	GB9113-2000
Structural length standard	GB12221-89
Inspection standard	GB/T 13927-92