Technical specification
Design standard: DIN 3356
Face to face dimension: DIN 3202
Flanged ends: DIN 2543-2545
Test & inspection: DIN 3230

Application
Hot oil system, steam system, hot and cold water system etc.

Advantage
1.The valve body adopts German coated sand manufacturing technology, which is more advanced, filling up the disadvantages of easy leakage and high pollution of the traditional casting process, ensuring the valve zero leakage.
2.The valve disc adopts a tapered design. The sealing surface and the medium are streamlined, with better sealing performance and longer service life.
3.Treated by quenching and tempering and surface nitriding, the stems have good performance of anti-corrosion and anti-friction.
4.Ergonomic hand wheel. It provide longer service life and easier operation.

Main part materials

Part name	Material
Body	GS-C25、1.4301、1.4408
Seat	1.4301、Stellite
Disc	1.4021、1.4301+ Stellite
Cap	1C45、1.4301、1.4401
Stem	1.4021、1.4301、1.4401
Gasket	Flexible graphite + stainless steel
Packing	Flexible graphite
Nut	ASTM 194-2H、A194-8
Double-headed bolt	ASTM 194-B7、A193-B8
Bonnet	GS-C25、1.4301、1.4408
Gland	GS-C25、1.4301
Jack bolt	ASTM 194-B7、A193-B8
Nut	ASTM 194-2H、A194-8
Stem nut	Copper alloy、D2、BL2
Hand wheel	1025/KTH330
Nut	ASTM 194-2H、A194-8