Shinjo Valve is a China ball valve manufacturer and supplier offering a full range of ball valves — floating ball, trunnion mounted, and V-port designs — in sizes from 1/2″ to 40″ (DN15–DN1000), pressure classes from PN20 to PN420 (Class 150 to 2500 LB), and working temperatures from -196°C to +200°C depending on the model. Body materials cover grey cast iron, ductile iron, cast steel WCB, stainless steel CF8/CF8M, forged steel, aluminium bronze, titanium, and 904L special alloy.
| Item | Range |
|---|---|
| Size Range | 1/2″ – 40″ (DN15 – DN1000) |
| Pressure Rating | PN20 – PN420 / Class 150 – 2500 LB |
| Working Temperature | -196°C – +200°C (model dependent) |
| Body Materials | Grey cast iron (GG25 / FC200), ductile iron (GGG40 / FCD400), cast steel (WCB), stainless steel (CF8 / CF8M, 304 / 316), forged steel, aluminium bronze (C95800), titanium (TA2), 904L |
| Ball Designs | Floating ball, trunnion mounted, V-port; full bore or reduced bore |
| End Connections | Flanged (DIN / ANSI / JIS / EN 1092), threaded (NPT / BSP), wafer type, butt-weld ends, RF flange |
| Actuation | Lever, pneumatic (double acting / single acting with spring return) |
| Design Standards | API 6D, ASME B16.34, DIN 3357, JIS B2002, GB/T 12237, EN ISO 17292, BS 5351 |
Three designs: floating ball (cast iron, wafer pattern, and 904L models), trunnion mounted (three piece DBB ball valve for high pressure classes up to 2500 LB), and V-port ball valve for modulating duty with pneumatic actuation.
Yes. The low temp (cryogenic) ball valve is designed for media from -40°C down to -196°C, serving cryogenic fluids such as liquefied natural gas (LNG), liquid nitrogen (LN2), liquid oxygen (LOX), and liquid argon (LAr). The valve undergoes special cryogenic treatment to prevent deformation and leakage at low temperature, and the extended bonnet keeps the packing box away from the cryogenic zone to maintain packing seal performance.
DBB stands for Double Block and Bleed. The three piece trunnion mounted ball valve provides both DBB and DIB (Double Isolation and Bleed, DIB-1 or DIB-2) functionality, with double piston effect, self relieving seats and a pressure relief valve to protect the body cavity from overpressure.
Grey cast iron (GG25 / FC200), ductile iron (GGG40 / FCD400), cast steel WCB, stainless steel CF8 / CF8M (304 / 316), forged steel, aluminium bronze, titanium, and 904L special alloy. Seats are typically PTFE; the V-port valve uses a 304 seat with hard alloy overlay.
Design and manufacture per API 6D, ASME B16.34, DIN 3357, JIS B2002, GB/T 12237, EN ISO 17292 and BS 5351. Face-to-face and flange dimensions per ASME B16.10 / B16.5, DIN 3202, EN 1092-1, JIS B2212. Testing per API 598, API 6D, EN 12266-1, ISO 5208 and DIN 3230.
Shinjo Valve manufactures plug valves in China with Class 150 to 1500 LB coverage, compliant with API 599, API 6D and GB 12240. Lubricated, non-lubricated sleeved, eccentric, double block & bleed and 3-way designs are available. Every valve is 100% pressure tested before shipment. Request a quote →
Sealant-assisted sealing reduces friction and supports heavy-duty, high-pressure isolation duties.
PTFE sleeve provides low-maintenance tight shutoff for general industrial service (Class 150-900 LB).
Offset plug movement reduces rubbing during travel — suitable for wastewater, sludge and slurry service.
Verified isolation for pipeline, metering and transfer applications (Class 150-1500 LB).
Diverting, mixing and steam-jacketed configurations for temperature-sensitive and multi-port service.
All plug valves are built to API 599 / API 6D / API 598 and inspected per project specification, with material certificates, test reports and dimensional drawings available on request. Standard lead time is 15-35 days; OEM and documentation support are provided for export projects.
From Class 150 up to Class 1500 LB, depending on the design and body material.
Yes. Our DBB, 3-way and pressure-balanced designs are built to these standards; confirm the required standard in your RFQ.
Generally 15-35 days for standard models; longer for customized or high-class units.
Yes. Our orbit-type double block & bleed plug valves (Class 150-1500 LB) are suited to pipeline, metering and transfer isolation.
Send valve size, pressure class, medium, temperature, body material, end connection and operation method. We usually reply within 24 hours. Request a quotation →