Products breif:
1. The product design complies with the NB/T 47044 and ASME B16.34 standards.
2. The stem undergoes quenching and nitriding processes, providing heat resistance, wear resistance, and high corrosion resistance.
3. Erosion-resistant seat, disc, and protective sleeve are utilized to enhance durability.
4. The seat ring features a welded hard alloy layer and is precision-machined
1. The product design complies with the NB/T 47044 and ASME B16.34 standards.
2. The stem undergoes quenching and nitriding processes, providing heat resistance, wear resistance, and high corrosion resistance.
3. Erosion-resistant seat, disc, and protective sleeve are utilized to enhance durability.
4. The seat ring features a welded hard alloy layer and is precision-machined
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Description
1. The product design conforms to standards NB/T 47044 and ASME B16.34.
2. The stem is hardened and nitrided, providing heat resistance, wear resistance, and high corrosion resistance.
3. Erosion-Resistant Components: Nitrided, erosion-resistant seat, disc, and protective sleeve are employed; these components are replaceable.
4. Top inlet/bottom outlet design ensures low opening/closing torque and easy operation.
5. The sealing surfaces of the seat and disc are overlay welded with cobalt-based hard alloy or plasma sprayed, offering high heat resistance, wear resistance, and galling resistance.
6. The body features a forged design.
Parameters
- Product Standards: DL/T 531, JB/T 3595, NB/T 47044, ASME B16.34
- Pressure Rating: PN160-PN630 (900LB-3500LB), P54100V, P54140V, P54170V, P57100V, P57140V, P57170V
- Nominal Diameter: DN10-DN100 (2"-4")
- Body Material: 25#, 12Cr1MoV, ASTM A105, ASTM A182 F11, ASTM A182 F22, ASTM A182 F91, ASTM A182 F92
- Operating Temperature:
- WCB: -29°C ~ 425°C
- Alloy Steel: -29°C ~ 540°C, -29°C ~ 570°C
- Working Media: Water, Steam
- Connection Type: Flanged, Welded
- Actuation Type: Handwheel, Worm Gear, Pneumatic, Electric

















































