J-Series valves provide high quality and dependable overpressure protection for air, gas, steam, vapor, liquid and two-phase applications in one simple design. Now available with two new to the world technologies, Balanced Diaphragm and Bellows Leak Detection.
Features
| Cap Types | |||
| 4C2 Screwed with Plug | 4N8 Lifting Lever with Plug | 4C3 Packed Lifting with Plug | |
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| Item | Component | Type TOS NACE | Type TOBS NACE |
| 1 | Nozzle | 316 Stainless Steel | 316 Stainless Steel |
| 2 | Nozzle Gasket | Flexible Graphite/Stainless Steel | Flexible Graphite/Stainless Steel |
| 3 | Body | ASME SA216 GR WCB | ASME SA351 GR CF8M |
| 4 | Set Screw Gasket | Stainless Steel | Stainless Steel |
| 5 | Set Screw | Stainless Steel | 316 Stainless Steel |
| 6 | Nozzle Ring | Stainless Steel | 316 Stainless Steel |
| 7 | Disc | Stainless Steel | 316 Stainless Steel |
| 8 | Retention Clip | Stainless Steel | Stainless Steel |
| 9 | Disc Holder | Stainless Steel | 316 Stainless Steel |
| 9A | Bellows | / | 316L Stainless Steel |
| 10 | Guide | Stainless Steel | 316 Stainless Steel |
| 11 | Guide Gasket | Stainless Steel | Stainless Steel |
| 12 | Bonnet Stud | ASME SA193 GR. B7 | ASME SA193 GR. B8M |
| 13 | Bonnet Stud Nut | ASME SA194 CL 2H | ASME SA194 CL 8M |
| 14 | Spring Washers | Carbon Steel | Stainless Steel |
| 15 | Spring | Alloy Steel | Alloy Steel Corrosion Resistant Coating |
| 16 | Spindle | 420 Stainless Steel | 316 Stainless Steel |
| 17 | Adjusting Bolt | Stainless Steel | Stainless Steel |
| 18 | Cap Gasket | Stainless Steel | Stainless Steel |
| 19 | Adjusting Bolt Nut | Stainless Steel | Stainless Steel |
| 20 | Threaded Cap | Stainless Steel | Stainless Steel |
| Orifice Areacm2 | Inlet Flange Class | Type | Size(inch) | Connections | Maximum Set Pressure(MPa) | Back pressure limit38℃ | Material | Inlet Temp.Range（℃） | ||||||||
| Inlet×Orif-ice×Outlet | Lnlet Temperature | |||||||||||||||
| Inlet | Outlet | -268~-60 | -59~29 | -29℃~38℃ | 38℃~232℃ | 233℃~427℃ | 427~538 | TOS-4C2 | TOBS-4C2 | Body | Spring | |||||
| 11.858(K) | 1 | TOS-01 | 3K4 | 150LB | 150LB | 1.96 | 1.27 | 0.55 | 1.96 | 1.03 | Carbon Steel. | Alloy Steel. | -29~427 | |||
| 2 | TOS-03 | 3K4 | 300LB | 150LB | 1.96 | 1.96 | 1.96 | 1.96 | 1.03 | |||||||
| 3 | TOS-03a | 3K4 | 300LB | 150LB | 5.10 | 4.24 | 2.82 | 1.96 | 1.03 | |||||||
| 4 | TOS-06 | 3K4 | 600LB | 150LB | 10.20 | 8.51 | 5.68 | 1.96 | 1.37 | |||||||
| 5 | TOS-09 | 3K6 | 900LB | 150LB | 15.30 | 12.72 | 8.51 | 1.96 | 1.37 | |||||||
| 6 | TOS-15 | 3K6 | 1500LB | 300LB | 15.30 | 15.30 | 14.20 | 4.13 | 1.37 | |||||||
| 3 | TOS-03a | 3K4 | 300LB | 150LB | 3.51 | 1.48 | 1.96 | 1.03 | Chrome Molybde-num Steel. | Alloy Steel. | 428~538 | |||||
| 4 | TOS-06 | 3K4 | 600LB | 150LB | 6.99 | 2.96 | 1.96 | 1.37 | ||||||||
| 5 | TOS-09 | 3K6 | 900LB | 150LB | 10.51 | 4.48 | 1.96 | 1.37 | ||||||||
| 6 | TOS-15 | 3K6 | 1500LB | 300LB | 16.30 | 7.44 | 4.13 | 1.37 | ||||||||
| 1 | TOS-01 | 3K4 | 150LB | 150LB | 1.89 | 1.89 | 1.89 | 1.24 | 0.55 | 0.13 | 1.89 | 1.03 | Austenitic Stainless Steel. |
Alloy Steel. Stainless Steel. |
-268~538 | |
| 2 | TOS-03 | 3K4 | 300LB | 150LB | 1.89 | 1.89 | 1.89 | 1.89 | 1.89 | 1.89 | 1.89 | 1.03 | ||||
| 3 | TOS-03a | 3K4 | 300LB | 150LB | 3.61 | 4.96 | 4.96 | 3.41 | 2.89 | 2.41 | 1.89 | 1.03 | ||||
| 4 | TOS-06 | 3K4 | 600LB | 150LB | 4.13 | 9.92 | 9.92 | 6.72 | 5.82 | 4.82 | 1.89 | 1.37 | ||||
| 5 | TOS-09 | 3K6 | 900LB | 150LB | 4.13 | 14.89 | 14.89 | 10.23 | 8.72 | 7.23 | 1.89 | 1.37 | ||||
| 6 | TOS-15 | 3K6 | 1500LB | 300LB | 5.17 | 15.30 | 15.30 | 17.09 | 14.54 | 12.06 | 4.13 | 1.37 | ||||
| Type |
ANSI Flange Class |
Center to Face | Total Thickness of Flange gnd Nozzle | Approximate height H | ||||||
| outlet | lnlet | Cap Type | ||||||||
| Inlet | Outlet | A | B | X | 4C2 | 4N8 | 4C3 | |||
| TOS-01 | 3K4 | 150 | 150 | 162.0 | 155.5 | 54 | 680 | 730 | 750 | |
| TOS-03 | 3K4 | 300 | 150 | 162.0 | 155.5 | 54 | 680 | 730 | 750 | |
| TOS-03a | 3K4 | 300 | 150 | 162.0 | 155.5 | 54 | 680 | 730 | 750 | |
| TOS-06 | 3K4 | 600 | 150 | 181.0 | 184.0 | 54 | 790 | 840 | 860 | |
| TOS-09 | 3K6 | 900 | 150 | 216.0 | 198.5 | 68 | 870 | 920 | 940 | |
| TOS-15 | 3K6 | 1500 | 300 | 216.0 | 197.0 | 68 | 870 | 920 | 940 | |
Products Number: API 526 High-Pressure Relief Valve – 600LB 4P6 – WCB/316 Trim – Steam & Gas Protection – Customizable for Petrochemical Plants
Products Number: Industrial Large Size Safety Valve – API 526 8T10 – 300LB WCB & 316 Trim – Reliable Overpressure Protection for Chemical Plants
Products Number: API 526 150LB 3K4 4A Safety Valve – 2507 Super Duplex Stainless Steel Body, High-Temperature Steam & Seawater Resistant, for Marine, Offshore, Shipbuilding & Desalination Plants
Products Number: API 526 600LB 4L6 Safety Relief Valve – WCB Body & 316 Trim, High-Pressure Gas/Liquid Protection, for Oil & Gas, Petrochemical, and Power Plants
Products Number: High-Capacity API 526 300LB 2J3 Safety Valve – WCB/316 Trim, Adjustable Blowdown, for Compressor Stations
Products Number: Customizable API 526 1500LB 2H3 Valve – WCB/316 Trim, Adjustable Blowdown, for LNG Plants & Refineries
Shanghai Xiazhao Valve Co., LTD. provides high-performance ball and safety valves for petrochemical, natural gas, and industrial automation. Our API 6D, ANSI 600LB, and fire-safe designs ensure reliability. 95% on-time delivery. Request a quote.
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