Jacketed gate valves are widely used in petroleum, chemical industry, metallurgy, pharmacy and other kinds of systems, and also reduce the heat loss of medium in pipeline, prevent the medium from crystallization, solidification or any other similar phenomenons.
| Design and Manufacture | Face to Face | Flange Dimension | Inspection and Test |
|---|---|---|---|
| GB12234-2007 | GB12221-2005 | JB/T79-1994; HG/T 20592-2009 | GB/T13927-2008; GB/T 26480-2011 |
| Item | ZG1Cr18Ni9Ti Series | ZG00Cr18Ni10 Series | ZG1Cr18Ni12Mo2Ti Series | ZG00Cr17Ni14Mo2 Series | WCB Series |
|---|---|---|---|---|---|
| Body/Cap | ZG1Cr18Ni9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12Mo2Ti | ZG00Cr17Ni14Mo2 | WCB |
| Wedge | ZG1Cr18Ni9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12Mo2Ti | ZG00Cr17Ni14Mo2 | WCB |
| Stem | 1Cr18Ni9Ti | 00Cr18Ni10 | 1Cr18Ni12Mo2Ti | 00Cr17Ni14Mo2 | 1Cr13 |
| Packing | PTFE Braided | PTFE Braided | PTFE Braided | PTFE Braided | Graphite |
| Gasket | 304 + PTFE | 304L + PTFE | 316 + PTFE | 316L + PTFE | Graphite + 304 |
| Gland Flange | ZG1Cr18Ni9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12Mo2Ti | ZG00Cr17Ni14Mo2 | WCB |
| Stuffing Ring | 1Cr18Ni9Ti | 00Cr18Ni10 | 1Cr18Ni12Mo2Ti | 00Cr17Ni14Mo2 | 1Cr13 |
| Bolt | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | 35CrMoA |
| Nut | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 45 |
Unit:mm
Type:BZ40H-16C / BZ40Y-16I / BZ40W-16P / BZ40W-16R / BZ40F-16C / BZ41H-16C / BZ41Y-16I / BZ41W-16P / BZ41W-16R
| DN | L | H | W |
|---|---|---|---|
| 40 | 200 | 310 | 200 |
| 50 | 250 | 358 | 240 |
| 65 | 270 | 373 | 240 |
| 80 | 280 | 435 | 280 |
| 100 | 300 | 500 | 300 |
| 125 | 325 | 614 | 320 |
| 150 | 350 | 674 | 360 |
| 200 | 400 | 818 | 400 |
| 250 | 450 | 969 | 450 |
| 300 | 500 | 1145 | 560 |
Type:BZ40H-25C / BZ40Y-25I / BZ40W-25P / BZ40W-25R / BZ40F-25C / BZ41H-25C / BZ41Y-25I / BZ41W-25P / BZ41W-25R
| DN | L | H | W |
|---|---|---|---|
| 40 | 200 | 358 | 240 |
| 50 | 250 | 373 | 240 |
| 65 | 270 | 435 | 280 |
| 80 | 280 | 500 | 300 |
| 100 | 300 | 614 | 320 |
| 125 | 325 | 674 | 360 |
| 150 | 350 | 818 | 400 |
| 200 | 400 | 969 | 450 |
| 250 | 450 | 1145 | 560 |
| 300 | 500 | 1145 | 640 |
Type:BZ40H-40C / BZ40Y-40I / BZ40W-40P / BZ40W-40R / BZ40F-40C / BZ41H-40C / BZ41Y-40I / BZ41W-40P / BZ41W-40R
| DN | L | H | W |
|---|---|---|---|
| 40 | 200 | 358 | 240 |
| 50 | 250 | 373 | 240 |
| 65 | 280 | 435 | 280 |
| 80 | 310 | 500 | 300 |
| 100 | 350 | 614 | 320 |
| 125 | 400 | 674 | 360 |
| 150 | 450 | 818 | 400 |
| 200 | 550 | 969 | 450 |
| 250 | 650 | 1145 | 560 |
| 300 | 750 | 1145 | 640 |
Description: Manual, pneumatic, hydraulic, electric and other related connection sizes are the same; In addition, our company can customize the production of non-standard sizes of other standards and special materials products according to customer requirements.
Step 1: Order and Design
According to the customer’s working conditions, pressure class, size, material, and jacket structure requirements, the technical team confirms the drawings and production specifications of the jacketed gate valve. This step includes design review, dimension confirmation, and process planning before production.
Step 2: Forging & Casting
The main pressure-bearing parts such as body, bonnet, gate, and jacket-related components are produced by casting or forging based on the material requirements. Raw castings or forgings are then checked for surface quality, internal defects, and dimensional allowance to ensure they meet the manufacturing standard of the jacketed gate valve.
Step 3: Machining
All key parts are machined precisely, including flange faces, sealing surfaces, gate, stem, bonnet connection, and jacket passages. CNC machining and drilling are used to ensure accurate dimensions, smooth flow channels, and proper fit-up between components.
Step 4: Assembly
After machining and cleaning, all parts are assembled in sequence, including body, gate, stem, bonnet, gasket, and handwheel. During this stage, special attention is given to the sealing performance and jacket connection accuracy of the jacketed gate valve to ensure stable operation.
Step 5: Testing & Quality Assurance
Each jacketed gate valve undergoes strict inspection and testing, such as shell pressure test, seat sealing test, jacket pressure test, and dimensional inspection. Material certificates and inspection records are also reviewed to guarantee product quality and compliance with standards.
Step 6: Painting and Finishing
After final approval, the valve surface is cleaned, anti-rust treated, painted if required, and marked with nameplate and traceability information. The finished product is then packed carefully to prevent damage during storage and shipment.
This valve is used in various industries, including chemical, petrochemical, petroleum, paper, mining, power, liquefied gas, food, pharmaceutical, water supply and drainage, municipal engineering, mechanical equipment, electronics, and urban construction. Its design features include a relatively simple structure and a wide range of applications.
These valves are widely used in:
Oil and Gas
Chemical Processing
Power Plants
Water Treatment
Metallurgy and Mining
Agriculture and Irrigation
Superior Quality
Our valves are manufactured using premium materials and undergo rigorous quality testing to ensure reliable performance in demanding industrial applications.
Advanced Technology
Equipped with state-of-the-art CNC machining centers and precision manufacturing equipment, we deliver valves with exceptional accuracy and consistency.
Competitive Pricing
Through optimized manufacturing processes and bulk material procurement, we offer high-quality valves at competitive prices without compromising on quality.
Expert Support
Our experienced technical team provides comprehensive support from product selection to after-sales service, ensuring optimal valve performance for your specific application.
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