01
API 600 Manual Cast Steel Gate Valve
Technical Requirement
Nominal diameter: NPS 2”~48”(DN50~DN1200)
Operating temperature: -196℃~593℃(the range of service temperature may vary for different materials)
Nominal pressure: CLASS 600~2500 (PN100~PN420)
Material Main material: A216 WCB、WCC; A217 WC6、WC9、C5、C12、C12A、CA15; A351 CF8、CF8M、CF3、CF3M、 CF8C、CN3MN、CK3MCUN、CN7M; A352 LCB、LCC; A494 CW-6MC、CU5MCuC、M35-1; A890 4A(CD3MN)、 5A(CE3MN)、6A(CD3MWCuN); ASME B 148 C95800、C95500, etc.
Design standard: ASME B16.34, API 600, GB/T 12234, GB/T 12224, DIN 3352, ISO 10434, BS 1414
Structural length: ASME B16.10, GB/T 12221, EN558-1, DIN 3202
Connecting end: ASME B16.5, ASME B16.47, ASME B16.25、GB/T 9113, EN 1092-1, DIN 2543-2547
Test standard: API 598, ISO 5208, GB/T 26480, GB/T 13927
Design description
Operation method: non-elevating hand wheel, bevel gear, motor drive unit, pneumatic drive unit
Application fields: For application in fields such as electric power industry, petroleum, tap water engineering in urban construction, chemical engineering, etc.
Other remarks
1. The sealing faces of valve seat and valve clack are build-up welded with hard alloy to improve the erosion resistance and extend the service life of valve.
2. The pressure self-sealing is adopted between valve body and bonnet for reliable sealing, where the higher the pressure is, the better the sealing performance would be.
3. Rising stem structure, making the valve switch position be clear at a glance.
4. The valve stem thread will not come into contact with the medium, so the corrosion of medium to the thread is reduced.
5. Small switching moment, reliable sealing.
6. The slide is of wedge type, resilience and good sealing performance.
7. For small wedge resilient gate valves, the interchangeability can be ensured with process tooling.
8. Through improving the structural design and selecting reasonable packing structure and qualified packing supplier, the valves can meet the Class A sealing test requirements of ISO 15848 FE.

Standard Material Specifications
No | Part Name | ASTM Material | |||||||
Carbon steel | 1.25Cr-0.5Mo | 2.25Cr-1Mo | 304 Type | 316 Type | 304LType | 316LType | 20 Alloy | ||
1 | Body | A216 WCB | A217 WC6 | A217 WC9 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M | A351 CN7M |
2 | Bonnet | A216 WCB | A217 WC6 | A217 WC9 | A351 CFS | A351 CF8M | A351 CF3 | A351 CF3M | A351 CN7M |
3 | Wedge | WCB+13CF1 | A217 WC6+HF | A217 WC6+HF | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M | A351 CN7M |
4 | Stem | A182 F6A | A182 F11 | A182 F22 | A182 F304 | A182 F316 | A182 F304L | A182 F316L | 20-AIIoy |
5 | Seat Ring | A105+13Cr*1 | A182 F11+HF1 | A182 F22+HF | NA | NA | |||
6 | Back Seat | A276 410 | A276 410 | A276 410 | NA | NA | |||
7A | Bonnet Gasket | 304+Graphite | 304+Graphite | 304+Graphite | 304+Graphite | 316+Graphite | 304L+Graphite | 316L+Graphite | 316+Graphite |
7B | Ring Gasket | Soft Steel | A182 F304 | A182 F304 | A182 F304 | A182 F316 | A182 F304L | A182 F316L | 20-AIIoy |
8 | Bonnet Bolt | A193 B7 | A193 B7 | A193 B16 | A193 B8 | A193 B8M | A193 B8 | A193 B8M | A193 B8M |
9 | Bonnet Nut | A194 2H | A1977 | A194 7 | A1948 | A1948M | A194B | A1948M | A1948M |
10 | Packing | Graphite | Graphite | Graphite | Graphite *2 | Graphite *2 | Graphite*2 | Graphite*2 | Graphite*2 |
11 | Gland | A276 410 | A276 410 | A276 410 | A276 304 | A276 316 | A276 304L | A276 316L | 20-AIIoy |
12 | Gland Flange | A216 WCB | A216 WCB | A216 WCB | A351 CF8 | A351 CF8 | A351 CF8 | A351 CF8 | A351 CF8 |
13 | Eyebolt | Carbon Steel | A193 B7 | A193 B7 | A193 B8 | A193 B8 | A193 B8 | A193 B8 | A193 B8 |
14 | Eyebolt Nut | Carbon Steel | A194 2H | A194 2H | A1948 | A1948 | A1948 | A1948 | A1948 |
15 | Eyebolt Pin | A276 410 | A276 410 | A276 410 | A276 304 | A276 304 | A276 304 | A276 304 | A276 304 |
16 | Grease Fitting | Commercial | Commercial | Commercial | |||||
17 | Stem Nut | Bronze*3 | Bronze | Bronze | |||||
18 | Jam Nut | Carbon steel | Carbon steel | Stainless Steel | |||||
19 | Hand Wheel | Malleable iron | Malleable iron | Malleable iron | |||||
20 | Wheel Nut | Carbon steel | Carbon steel +Zn | Carbon steel+ZN | |||||
*1 | PN100/CLASS 600 or higher pressure sealing face will be HF | ||||||||
*2 | PTFE Optional | ||||||||
*3 | Ductile Ni-Resist iron Optional | ||||||||
NA | Integral with body |