Standards Compliance
A. Flange Standard: GB/T 17241.6
B. Face-to-Face Standard: GB/T 12221
C. Testing Standard: GB/T 13927
D. Design Standard: Q/JBGN02
Design Features
A. Flexible Rubber Sleeve: EPDM sleeve provides a flexible flow passage for suitable industrial media.
B. Full-Bore Flow Path: Smooth internal passage helps minimize flow obstruction when the valve is fully open.
C. Media Isolation: The process medium flows through the rubber sleeve, reducing direct contact with the valve body.
D. Abrasion Resistance: Suitable for handling compatible abrasive media and slurries.
E. Handwheel Operation: Simple and convenient manual opening and closing.
F. Replaceable Sleeve: The rubber sleeve can be replaced when required, subject to the valve construction.
G. Flanged Connection: Designed for installation in compatible flanged pipeline systems.
H. Industrial Applications: Suitable for mining, mineral processing, wastewater treatment, and slurry handling, subject to media compatibility.
Main Connection Dimension and Outline Dimension (mm)
| PN10 | |||||||
| DN | NPS (Inch) | L | ΦD | ΦK | Z-Φd | L1 | H |
| 25 | 1" | 142 | 115 | 85 | 4-14 | 124 | 124 |
| 32 | 1 1/4" | 160 | 135 | 100 | 4-18 | 145 | 140 |
| 40 | 1 1/2" | 180 | 145 | 110 | 4-18 | 157 | 155 |
| 50 | 2" | 210 | 160 | 125 | 4-18 | 160 | 178 |
| 65 | 2 1/2" | 250 | 180 | 145 | 4-18 | 199 | 200 |
| 80 | 3" | 300 | 195 | 160 | 8-18 | 222 | 225 |
| 100 | 4" | 350 | 215 | 180 | 8-18 | 250 | 235 |
| 125 | 5" | 430 | 245 | 210 | 8-18 | 316 | 300 |
| 150 | 6" | 500 | 280 | 240 | 8-23 | 350 | 330 |
| 200 | 8" | 650 | 335 | 295 | 8-23 | 446 | 445 |
| 250 | 10" | 800 | 395 | 350 | 12-23 | 516 | 595 |
| 300 | 12" | 950 | 445 | 400 | 12-23 | 562 | 655 |
Standard Material Specifications
| Part Name | Standard Material | Optional Materials |
| Valve Body | Ductile Iron (DI) | Cast Iron, Carbon Steel, Stainless Steel |
| Rubber Sleeve | EPDM | NR, NBR, Natural Rubber, Butyl Rubber |
| Handwheel | Carbon Steel | Ductile Iron, Cast Iron |
| Valve Stem | Stainless Steel | Carbon Steel, Stainless Steel 304 |
| Stem Nut | Brass | Bronze, Stainless Steel |
| Fasteners | Carbon Steel | Stainless Steel 304, Stainless Steel 316 |
| Bonnet / Cover | Ductile Iron (DI) | Cast Iron, Carbon Steel |

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