LT type butterfly valve

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LT type butterfly valve

Product model: D373X
Nominal diameter: DN40 ~ 350mm
Nominal: PN0.6 ~ 1.6MPa
Temperature: ≤80 ℃
Suitable medium: water, steam, oil, weak acid, etc.
Main material: cast iron, carbon steel, stainless steel, etc.
Drive: manual, worm, pneumatic, electric
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Product description

LT-type butterfly valve drive mode can be used manually, worm, pneumatic, electric, connection can choose flange, the folder, the structure can choose a single eccentric, midline, double eccentric, three eccentric, sealed structure can choose soft seal, , The pressure range PN0.1-10MPa , nominal diameter of DN40 ~ 2000mm , material available cast steel, stainless steel. As the use of the valve is very wide range, the same kind of valve in different occasions and conditions have different match.
 

LT type butterfly valve use and characteristics

LT-type butterfly valve for food, medicine, chemical, oil, electricity, metallurgy, urban construction, textile, paper and other water supply and drainage, gas pipeline for regulating the flow and the role of interception medium, its main features are: 
 1,  Unique structure, light weight, opening and closing quickly. 
 2, the operating torque is small, easy to operate, effort Qiong Qiao. 
 3, can be installed anywhere, convenient. 
 4, the seal can be replaced, sealing performance and reliable, to achieve two-way seal zero leakage. 
 5, sealing materials resistant to aging, corrosion resistance, long service life and so on. 
 6, simple structure, good interchangeability, low prices. 
 7, stem seal is not easy to deformation so as to avoid the usual valve stem leakage phenomenon. Overall support is good, stable, solid. 
 8, the seat rubber with less, the potential impact of expansion is small, easy to control the torque value in the appropriate range of two-way stem without pin connection, simple and compact structure, easy to remove. 
 9, butterfly plate with automatic pairing, to achieve the butterfly plate and the valve seat with a small amount of co-operation. Phenolic back seat with no shedding, tensile, anti-leakage, easy to change and so on. As the valve seat sealing surface and the back as a whole, thereby reducing the amount of deformation of the valve seat.
 

Valve typetransfer methodConnection formstructure typeSealing materialNominal pressureBody material
D: butterfly valve3: worm gear7L: clip-on clip type1: center lineX: rubber-10: PN1.0MPaZ: Gray cast iron 
       Q: Ductile iron

 
 LT type butterfly valve with the standard

design standards

GB / T12238-2008, ISO 10631-1994

Or BS EN593-1998, BS5155, MSS SP-67

Flange connection

GB / T17241.6-2008,

JIS B2212-B2214-1999, JIS B2220-2004, JIS B2210-1984, ANSI B 16.5-2009,

ANSI B 16.47-2006, ISO 7005-2

Or BS EN 1092-2002 (PN6, PN10, PN16, Class 125, Class150, 5K, 10K, 16K)

Structure lengthGB / T12221 -2005, IS0 5752-1988SBSEN558-1
Pressure testGB / T13927-2008, JB / T9092-1999, ISO 5028-1993 or BS 5755-1-1986
Top flangeMeet the IS05211 and other standards

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Main dimensions and weight (PN1.0 / 1.6MPa)
DN (mm)ABCD1Ln-ΦKE4-Φ1Φ2GWeight WT (kg)
501408043125324-197757.154-6.712.61003.34
651528946145324-197757.154-.6712.61203.94
801599545.21160328-197757.154-.6712.61274.05
10017811452.07180328-199269.854-10.315.771565.48
12519012755.5210328-199269.854-10.318.921907.66
15020313955.75240328-239269.854-10.318.922128.5
20023817560.58295458-2311588.94-14.322.126825
250268203683504512-2311588.94-14.328.4532531.4
30030624276.94004512-23140107.954-14.331.640345.9
35036826776.174604516-23140107.954-14.331.643654