ASTM A890 4A Wedge Gate Valve, 18 Inch, 2500 LB, PSB, OS&Y
Model Number: 1821158
Key Specifications / Features
We are a trusted provider of RTJ flanged gate valves from China, offering premium valves designed to API 600 standards. Our 18-inch (DN450) gate valves are constructed from ASTM A890 4A duplex stainless steel and rated for Class 2500 LB (PN420). These valves feature a flexible wedge, pressure seal bonnet, and RTJ flanged ends for superior performance in high-pressure environments. Built for strength and corrosion resistance, they are ideal for demanding industrial applications, providing reliable sealing and long-term durability in harsh conditions.
Detail Information
18 Inch Gate Valve, ASTM A890 4A Body, DN450, Class 2500 LB, PSB, OS&Y, RTJ Flanged.
Gate valves are multi-turn valves used as isolation valves for fully open or closed service. Operated by a threaded stem, they press the gate against two seats to block fluid flow. Seats are typically metal with hard facing (such as stellite CoCrW or SS overlay) for durability, though soft seats are available for specific applications like water. They require less installation space compared to other shut-off valves and their slow operation helps prevent water hammer. Gate valves are versatile and suitable for fluids such as water, oil, steam, gas, and slurry.
Normal Diameter: 2 Inch - 64 Inch (DN50 - DN1600)
Pressure Range: Class 150 LB - 2500 LB
Operation: Handwheel/Gear/Motor
Working Temperature: -29°C - +400°C
End Connections: RF, RTJ, BW
Gate valves are multi-turn valves used as isolation valves for fully open or closed service. Operated by a threaded stem, they press the gate against two seats to block fluid flow. Seats are typically metal with hard facing (such as stellite CoCrW or SS overlay) for durability, though soft seats are available for specific applications like water. They require less installation space compared to other shut-off valves and their slow operation helps prevent water hammer. Gate valves are versatile and suitable for fluids such as water, oil, steam, gas, and slurry.
Valve Description
| 1821158 Gate Valve | |
| Design Standard: | API 600 |
| Structure: | Bolted Bonnet/Pressure Seal Bonnet |
| Body Material: | ASTM A890 4A, ASTM B148 C95800, ASTM A351 CF8, ASTM A351 CF8M, ASTM A352 LCB, ASTM A216 WCB, ASTM A890 5A. |
| Nominal Size: | 18 Inch, DN420 |
| Nominal Class: | Class 2500 LB, PN420 |
| Bore Type: | Standard Bore(API 600) |
| End Connection: | RF Flanged |
| Trim Material: | ASTM A182 F6A, ASTM A182 F304, ASTM A182 F316, ASTM A182 F51, ASTM A182 F53, ASTM A182 F55 |
| Operation: | Handwheel/Gear |
| Face to Face: | ASME B16.10 |
| Test and Inspection: | API 598 |
| Key Features: | OS&Y, Screwed-in Back Seat, Rising Stem, Non-rising Handwheel, Flexible Wedge, Low Emission Design. |
Product Range
Body Material: Carbon Steel, Stainless Steel, Alloy Steel, Aluminum BronzeNormal Diameter: 2 Inch - 64 Inch (DN50 - DN1600)
Pressure Range: Class 150 LB - 2500 LB
Operation: Handwheel/Gear/Motor
Working Temperature: -29°C - +400°C
End Connections: RF, RTJ, BW
Supplier Information
Bosseal Valves (Suzhou) Co., Ltd.
Verified Supplier
Suzhou, Jiangsu, China
Est. 2013
Certifications:
API 6D
API 6A
API 600
API 602
API 599
API 609
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