TECHNICAL DATA SHEET
Product: DN50-PN40-RF Axial Check Valve
The axial check valve (also known as axial flow check valve) is designed for minimal flow resistance and pulsation reduction. Featuring an axial flow path and spring-assisted closing mechanism, it is suitable for pipeline systems requiring low water hammer, minimal pressure drop, and tight sealing. Suitable for horizontal or vertical installation (flow direction must be observed).
Item | Specification | Remarks |
Nominal Diameter (DN) | 50 mm | 2 inch |
Nominal Pressure (PN) | 40 bar | Approx. Class 300 |
Connection Type | RF (Raised Face Flange) | Per EN 1092-1 / ASME B16.5 |
Design Type | Axial, Spring-Assisted | Disc moves parallel to pipeline axis |
Applicable Media | Water, Oil, Steam, Gas, etc. | Dependent on seat material |
Media Temperature Range | -20°C ~ +200°C | High-temp version available up to +400°C |
Body Material | Carbon Steel WCB / Stainless Steel 304 / 316 | Duplex steel etc. optional |
Disc Material | SS 304/316 + Stellite hard-faced sealing | |
Seat Seal | Metal Hard Seal / Soft Seal (PTFE) | Optional |
Spring Material | SS 316 / Inconel X-750 | Selected per media temperature |
Flange Standard | EN 1092-1 (PN40) / ASME B16.5 (Class 300) | Other standards available upon request |
Cracking Pressure | ≤ 0.1 bar | Low differential pressure required to open |
Full Flow Pressure Drop | ≤ 0.02 bar | Typical value, depends on flow velocity |
Dimension | Value (mm) |
Face-to-Face Length L | Approx. 200-250 |
Overall Height H | Approx. 150-180 |
Flange OD D | 165 |
Bolt Circle Diameter K | 125 |
Bolt Holes (Number × Diameter) | 4 × φ18 |
Flange Thickness t | Approx. 24 |
Flange Face | RF (Raised Face) Ra≤3.2μm |
Weight (WCB) | Approx. 12-15 kg |
Test Item | Standard | Requirement |
Shell Strength Test | EN 12266 / API 598 | 1.5 × PN (60 bar) |
Seat Leakage Test | EN 12266 / API 598 | 1.1 × PN (44 bar) |
Reverse Flow Seal Test | As per customer request | Gas or liquid test available |
Material Certificate | EN 10204 3.1 | Optional |
DN50-PN40-RF Axial Check Valve, Body WCB, Disc/Seat 304+Stellite, Spring 316, Metal Hard Seal, EN 1092-1 Flange.
Note: The above data represents typical design values. Actual product specifications may vary depending on specific design, material selection, or manufacturing standards. Please confirm detailed specifications with the manufacturer before ordering.
GUATANTEE:
SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.
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