API Cast Flange Gate Valve

This product is a API Cast flange gate valve, engineered for industrial pipeline systems to provide reliable flow isolation and on/off control. The body is cast from high-strength materials, offering durable pressure resistance and stable mechanical performance suitable for oil, chemical, power, and general industrial media.

The wedge-shaped gate provides minimal pressure drop when fully open, ensuring efficient fluid transport. The rising stem design allows the valve position to be visually confirmed for convenient on-site operation and monitoring. Flanged connections feature ANSI RF (Raised Face) sealing surfaces, providing secure installation and dependable sealing, fully compatible with standard pipeline systems. Manual operation offers simple and practical control with low maintenance requirements. This gate valve is widely used in industrial pipelines as a reliable solution for fluid shutoff.

  • Pressure Rating: 150 LB – 600 LB, 1.0 – 42.0 MPa

  • Size Range: 1/2″ – 60″ (DN 15 – DN 1500)

  • Working Temperature: -29°C to 266°C

  • Standards: API, ANSI, ASME, DIN, JIS, BS

  • Materials: Carbon Steel, Stainless Steel, Alloy Steel, Special Alloys

  • Operation: Manual, Gear, Electric, Pneumatic

Structural Characteristics of

  • The body is made of ASTM A351 CF8 austenitic stainless steel, providing excellent corrosion and oxidation resistance for chemical and aggressive media service.

  • When fully open, the bore matches the pipeline diameter, ensuring minimal pressure drop.

  • Precision-machined sealing surfaces ensure dependable shutoff in both flow directions.

  • Stem movement clearly indicates valve position for safe and easy operation.

  • RF flanges comply with ASME B16.5, ensuring reliable installation and sealing.

  • Suitable for water, steam, oil, and corrosive industrial fluids.

Main Components Material

NameMaterial
Body / BonnetCF8CF3CF8MCF3MWCBLCBWC6WC9C5
WedgeCF8CF3CF8MCF3MWCBLCBWC6WC9C5
StemF304F304LF316F316L2Cr13F304F304F304F304
Stem NutAluminium Bronze
PackingPTFE / Flexible GraphiteGraphite
GasketPTFE / Metal Wound GasketGraphite
GlandCF8CF3CF8MCF3MWCBLCBWC6WC9C5
BoltStainless Steel35CrMoA
NutStainless Steel45, 35CrMoA
HandwheelCast Steel

Class 150LB Main Connection Dimensions

DNSIZELDD1D2bfn-ΦdHD0
151/2″1089060.334.91024-16158100
203/4″11710069.942.910.924-16163100
251″12711079.450.811.624-16193125
321-1/4″14011588.963.513.224-16250160
401-1/2″16512598.47314.724-16285160
502″178150120.792.116.324-19325180
652-1/2″190180139.7104.817.924-19350190
803″203190152.412719.524-19380200
1004″229230190.5157.224.328-19460230
1255″254255215.9185.724.328-22630250
1506″267280241.3215.925.928-22635260
2008″292345298.5269.92928-22765290
25010″330405362323.830.6212-26895330
30012″356485431.838132.2212-261080350
35014″381535476.3412.835.4212-291295380
40016″406595539.8469.937216-291435400
45018″432635577.9533.440.1216-321625430
50020″457700635584.243.3220-321830450
60024″508815749.3692.248.1220-352175500

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