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API 600 Manual Cast Steel Gate Valve

Nominal diameter: DN200 (8")

Pressure rating: ANSI Class 300 

Connection: RF flanged as per ASME B16.5

Body material: A216 WCB

Trim: 13%Cr

Operation: handwheel operated 

Features: Flexible wedge, cast steel body, stainless steel trim. 

    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.
    5

    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

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