ASME/ANSI CF8m/CF8/Wcb Class150lb/300lb/600lb Flanged Gate Valve

• Customization: Available
• Media: Oil Water Gas
• Temperature: Ordinary Temperature
• Model NO.: Gate Valve
• Type: Direct-acting
• Material: Carbon Steel
• Connection Form: Flange
• Pressure: 150lb/300lb/600lb/900lb
• Actuator: Manual
• Seal Surface: Wedge Gate Valve
• Thread Position of Valve Rod: Outside Gate Valve
• Usage: Regulation, Safety, Emptying, Drain, Temperature Control, Flow Control
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Operation: Manual/Penumatic/Electrical and So on
• Working Temperature: 425 Degree C
• Body Material: Wcb+13cr/CF8/CF8m
• Certificate: CE/Sil/Ts/ISO, etc
• Transport Package: Woodbox
• Specification: 1/2"-24"
• Trademark: RSTV/OEM
• Origin: China
• HS Code: 8481804090
• Package Size: 60.00cm * 60.00cm * 60.00cm
• Package Gross Weight: 20.000kg

Product Description

Product Description

The flanged gate valve is one of the most widely used shut-off valves in industrial pipeline systems, specifically designed for the full opening / full closing control of the medium. This series of exposed stem wedge-type flanged gate valves are strictly manufactured in accordance with international standards such as API600, ASME B16.34, and GB/T 12234, and are suitable for harsh working conditions in industries such as petroleum, chemical, power, water supply and drainage, and metallurgy. 

Core structure: It adopts a stem-and-wedge single gate plate structure, with the valve stem equipped with a trapezoidal transmission thread and driven by a handwheel. The valve stem's up and down status is clearly visible, facilitating the determination of the valve's opening and closing position; the wedge-shaped gate plate can automatically compensate for wear on the sealing surface and deformation caused by thermal expansion and contraction of the pipeline, ensuring long-term sealing reliability.

Connection form: Standard flange connection, in accordance with ASME B16.5, GB/T 9113, etc. standards, supporting various flange face forms such as RF, FM, RJ, etc. Installation is convenient, suitable for various industrial pipeline systems.

Material configuration: The valve body can be selected from carbon steel (WCB), stainless steel (CF8/CF8M, CF3/CF3M), etc.; the sealing surface can be welded with Stellite hard alloy, featuring excellent wear resistance and corrosion resistance; the valve stem adopts a stainless steel design to prevent blowout, ensuring safety and reliability.

Pressure and diameter range: Covers Class 150~2500 (PN16~PN420) pressure grades, with diameters ranging from NPS 1/2" to NPS 48", meeting the diameter and pressure requirements of various pipeline systems.

Drive mode: Standard handwheel/gear drive is provided. Optional drive forms such as pneumatic, electric, and hydraulic are available, suitable for remote control or automatic conditions.

Applicable media: Water, steam, oil products, natural gas, corrosive media, etc. Widely used in various industrial pipeline systems, serving as full-on or full-off control for the medium.

Low flow resistance, energy-saving and efficient
When the valve is fully opened, the flow channel is exactly the same as the inner diameter of the pipeline, and the medium flow direction does not change. The flow resistance is almost zero, and the pressure loss is extremely small. This significantly reduces the operating energy consumption of the pipeline system and is an ideal choice for long-distance pipeline transportation.

Bidirectional sealing, easy installation
The wedge-shaped sealing surface of the wedge-type gate plate can achieve self-sealing through the medium pressure, or be forcibly sealed by the handwheel torque. It supports bidirectional medium flow and does not need to consider flow direction restrictions. The installation is flexible and is suitable for complex pipeline layouts.

Flow Path	Full port design
Structure Form	Outside screw and yoke (OS&Y)
Bonnet Type	Bolted bonnet
Nominal Size	1/2" - 24"
Body Material	WCB / SS316 / SS304, etc.
Pressure Rating	Class 150lb / 300lb / 600lb, etc.
Gate & Seat Design	Flexible wedge with fully guided integrated seats
Stem & Handwheel	Rising stem with non-rising handwheel
Body-Bonnet Joint	Tongue and groove connection between body and bonnet

Main Product

Company Profile

Headquartered in Wenzhou, China, RST Valve Group Co., Ltd. brings over 15 years of expertise to the global industrial valve market.

We specialize in manufacturing a comprehensive range of valves, including  stainless steel, carbon steel, duplex,ball valves, gate valves, check valves, globe valves, and Y strainers.

As an ISO, CE, EAC, and TS certified manufacturer, we ensure that every product strictly complies with international standards such as ANSI, DIN, JIS, BS, and GB. 

With extensive experience in export markets, we have earned a solid reputation for quality and reliability.

RST Valve also offers flexible OEM & ODM services to meet your specific project requirements. We warmly welcome customers from around the world to visit our facilities and explore long-term cooperation opportunities.

Product Advantages

Certifications

Exhibition

Packaging & Shipping

Your Goods, Safely Shipped from Our Factory Floor to Your Doorstep

At RST Valve, we don't just manufacture valves — we ensure they arrive in perfect condition, no matter the distance.

---Every valve is individually wrapped in plastic bag with protective caps on connection end to preventing rust, scratches, and damage during transit.

---All valves are well packed into plywood cases.

FAQ

Q1: Are you a manufacturer or a trading company?

A: We are a professional valve manufacturer located in Wenzhou, China, with over 15 years of experience. We welcome factory visits.

Q2: What certifications do you hold?

A: We are ISO, CE, EAC,TS certified. Our products strictly comply with ANSI, DIN, JIS, BS, and GB standards.

Q3: Do you offer OEM/ODM services?

A: Can add chat apps such as WhatsApp WeChat or Facetime, etc.A: Yes. We can customize valve body logos, materials (e.g., CF8M, WCB), connection types, and pressure ratings according to your drawings or samples.

Q4: For Ball Valves, do you offer both floating and trunnion-mounted designs?

A: Yes. We supply Floating Ball Valves (for smaller sizes, e.g., DN15-DN200) and Trunnion-Mounted Ball Valves (for larger sizes, e.g., DN200 and above) to reduce operating torque and ensure stability.

Q5: What is the difference between Rising Stem and Non-Rising Stem Gate Valves?

A: We manufacture both types. Rising Stem Gate Valves allow operators to visually see if the valve is open or closed (common in above-ground installations), while Non-Rising Stem Gate Valves are suitable for underground or limited vertical space applications.

Q6: Do your Globe Valves offer good shut-off capability?
A: Absolutely. Globe Valves are specifically designed for throttling and regulating flow. They provide superior tight shut-off compared to gate valves but have a higher pressure drop. We ensure the disc and seat are precisely machined for a perfect seal. 
 
Q7: Which type of Check Valves do you recommend for low-pressure systems?
A: For low-pressure or non-return applications where water hammer is a concern, we recommend our Swing Check Valves or Wafer Check Valves. They offer low cracking pressure and minimal flow resistance. 
 
Q8: What mesh size do you use for Y Strainers?
A: Our standard Y Strainers come with a 40-mesh or 80-mesh stainless steel screen. Custom mesh sizes (e.g., 60-mesh, 100-mesh) are available upon request for filtering finer particles.
 
Q9: How do you protect valves during shipping?
A: We apply anti-rust oil, use plastic film wrapping, and install end protectors on all connection ends. Larger valves are packed in reinforced plywood cases to prevent damage during sea freight. 
 
Q10: Can I get a sample for testing?
A: Yes, sample orders are accepted. The sample cost is refundable once you place a bulk. order.