Focus On Triple Offset Butterfly Valve 


DN150 DIN Standard Butterfly Valve Lug Type

Model: LTD373H-16C

Origin: Oubei, Wenzhou

Type: Lug Type

Size: DN 150

Material: WCB

Valve Body Material: WCB

Valve Disc  Material: WCB

Valve Stem Material: F6a

Sealing Material: SS304 + graphite

Driving Mode: Worm Gear

product details

DN150 DIN standard butterfly valve lug type adopts precise hard seal and three eccentric multi-level metal hard seal structure, which is widely used in metallurgy, electric power, petrochemical industry, water supply and drainage, municipal construction and other industrial pipelines to regulate flow and cut off fluid. The valve adopts three eccentric structure, the valve seat and butterfly valve sealing surface are made of different hardness and stainless steel, with good corrosion resistance and long service life.

1、 Structure introduction

DIN standard butterfly valve adopts three eccentric structure. The valve seat seal is metal multi-layer hard seal structure, which is usually sandwich between metal and graphite, such as 304 + graphite, 316 + graphite. Such hard seal can also be made into single-layer soft seal PTFE, RPTFE, PPL, EPDM, NBR, etc

Three eccentric butterfly valve features:
1. Short structure size, small volume, light weight, easy to operate
2. Using the whole shaft mechanism, the butterfly plate has high strength and large flow area
3. The unique three eccentric design reduces the friction loss of the seal and greatly prolongs the service life
4. Metal hard seal is resistant to high temperature, low temperature and high pressure, and has a wide range of applications

2、Relevant standards of API standard butterfly valve

Design and manufacture: en 593
Structural length: en 558-1
Connecting flange: en 1092-1
Inspection and pressure test: en 12266-1
Any valve produced by our company is pressed in strict accordance with the pressure test standard, and the zero leakage butterfly valve is allowed to leave the factory only after the pressure is qualified.

Shell strengthSealing strength of high pressure waterAir seal strength

According to i1261 standard, strict pressure test can achieve zero leakage under the proposed pressure strength.
Accept the sampling inspection and full inspection of the third party quality inspection unit entrusted by the customer and the end customer, but explain to us what needs to be mentioned

3、Detailed connection size

Nominal pressureNominal sizeStructural lengthFlange outer circledrill holeSealing surface stepHeight of sealing surfaceFlange thicknessNumber of flange holes – diameter

4、Material of main parts

Valve body: WCB
Butterfly plate: WCB
Stem: F6a
Butterfly seal: SS304 + graphite
Bracket: WCB
Handle material: QT450

The default bracket is WCB, and the handle material is QT450. Our company can also produce WCB, CF8 and other materials according to customer needs

5、About our company

Tkok Valve  is a professional high quality butterfly valves manufacturers, focusing on research and development of butterfly valve series products.
The butterfly valves produced by Tkok Valve, both the valve body and valve disc all use designed casting molds by Tkok Valve company,not use the foundry no matter the wall thickness of the valve body,flange thickness and face to face dimensions,all can meet the requirement of relevant standard.
Tkok Valve mainly produce eccentric butterfly valves,high performance butterfly valves,and also have good supply for the centerline butterfly valves and fluorine-lined butterfly valves.

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