Stainless Steel Wedge Gate Valve
Discover the superior durability of the WCB or Stainless Steel Wedge Gate Valve manufactured by the FYL factory. Engineered for precision in water conservancy, oil, and gas industries, our valves offer leak-proof sealing and versatile actuation. As a leading manufacturer, FYL provides professional technical support and customized flow control solutions globally.
Product Overview
At FYL , we specialize in high-quality flow control hardware, and our WCB or Stainless Steel Wedge Gate Valve stands as a testament to our engineering excellence. Whether you are managing high-pressure steam in a thermal power plant or corrosive media in a petrochemical facility, our wedge gate valves provide a robust barrier.
The WCB or Stainless Steel Wedge Gate Valve is designed as an automatic-sealing unit. It utilizes the fluid's own pressure to force the gate against the seat, ensuring a tight, bubble-tight shut-off. We offer both rigid and elastic gate configurations to compensate for temperature fluctuations and processing deviations, ensuring consistent performance in the most demanding environments.
Key Technical Advantages of FYL Valves
We have integrated advanced metallurgy and structural design into every WCB or Stainless Steel Wedge Gate Valve we produce. Our commitment to quality means:
- Optimized Flow Dynamics: The internal flow channel is precision-machined to be smooth, significantly reducing the flow resistance coefficient and energy loss.
- Superior Material Integrity: By using premium WCB carbon steel or high-grade Stainless Steel, our valves resist erosion and cavitation.
- Hardened Sealing Surfaces: We utilize hard alloy and stainless steel overlays on sealing faces to ensure high mechanical strength and an extended wear life.
- Zero-Leakage Packing: We implement flexible graphite packing, which provides an airtight seal while allowing for smooth, low-torque stem operation.
- Versatile Actuation: Our WCB or Stainless Steel Wedge Gate Valve supports manual handwheels, electric actuators, pneumatic cylinders, and bevel gear transmissions.
Technical Specifications & Performance Data
Pressure & Leak Test Standards
| Nominal Pressure (PN) | Shell Test (Liquid) | Seal Test (Air) | Seal Test (Liquid) |
| 1.6 MPa | 2.4 MPa | 0.6 MPa | 1.8 MPa |
| 2.5 MPa | 3.8 MPa | 0.6 MPa | 2.8 MPa |
| 4.0 MPa | 6.0 MPa | 0.6 MPa | 4.4 MPa |
| 6.4 MPa | 9.6 MPa | 0.6 MPa | 7.0 MPa |
| 10.0 MPa | 15.0 MPa | 0.6 MPa | 11.0 MPa |
Material Selection Guide
| Part Name | GB Standard | ASME Standard | Applicable Medium |
| Body/Bonnet | WCB / 304 / 316 | A216 WCB / A351 CF8 | Water, Steam, Oil, Acids |
| Wedge/Gate | WCB / 304 / 316 | A216 WCB / A351 CF8M | Corrosive/Non-corrosive |
| Valve Stem | 1Cr13 / 304 | A182 F6a / A276 304 | High-Torque Resistance |
| Packing | Flexible Graphite | Flexible Graphite | Temp: -29°C to 550°C |
Dimensional Data (PN16 - PN25)
The following table outlines the standard connection dimensions for our WCB or Stainless Steel Wedge Gate Valve series to assist in your pipeline planning.
| DN (Size) | L (Length) | D (Flange O.D) | D1 (Bolt Circle) | D2 (Face) | Z-Ød (Bolts) |
| 50 | 250 | 165 | 125 | 100 | 4-19 |
| 100 | 300 | 220 | 180 | 155 | 8-19 |
| 150 | 350 | 285 | 240 | 210 | 8-23 |
| 200 | 400 | 340 | 295 | 265 | 12-23 |
| 300 | 500 | 460 | 410 | 375 | 12-28 |
Success Stories & Client Applications
Case 1: Southeast Asia Oil Refinery
A major refinery required a durable solution for high-temperature oil transport. FYL supplied over 200 units of the WCB or Stainless Steel Wedge Gate Valve with electric actuators. Our valves reduced maintenance downtime by 30% over a two-year period compared to their previous supplier.
Case 2: Municipal Water Treatment Plant
For a large-scale water conservancy project, we provided the WCB or Stainless Steel Wedge Gate Valve in DN600 sizes. Our engineering team assisted in the onsite installation and calibration, ensuring the system met strict environmental leakage standards.
Why Choose FYL Factory?
1. End-to-End Quality Control
From the raw casting of the WCB or Stainless Steel Wedge Gate Valve to the final pressure test, every step is monitored. We don't just sell valves; we sell reliability.
2. Professional Consultation
Not sure which material fits your medium? Our experts provide free technical consultations to help you select the exact WCB or Stainless Steel Wedge Gate Valve configuration for your specific pressure and temperature requirements.
3. Global Logistics & Support
We understand that project timelines are critical. FYL maintains a large inventory of standard sizes to ensure rapid shipping and provides 24/7 after-sales support for installation and troubleshooting.
Frequently Asked Questions (FAQ)
What is the difference between a rigid and elastic wedge?
In our WCB or Stainless Steel Wedge Gate Valve line, a rigid wedge is a single piece best for simple applications. An elastic wedge features a slight "give" that allows it to seal better against the seat even if the valve body undergoes thermal expansion or slight deformation.
Can these valves be used for throttling?
No. The WCB or Stainless Steel Wedge Gate Valve is designed strictly for "on/off" service. Using them for throttling can cause erosion of the gate and seat due to high-velocity flow.
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