In oilfield drilling fluid control systems, check valves play a vital role in preventing backflow and reducing water hammer risk. AIFUEL introduces a high-performance, cost-effective check valve series designed for standard onshore conditions, supporting both standard flow direction (union first) and reverse flow direction (threaded end first), fully covering 2" to 3" manifold applications.
1. Flexible Dual Flow Direction Options
Two flow configurations meet most manifold layout requirements:
Standard Flow Direction: Union connection in front / valve body at the rear
Reverse Flow Direction: Threaded connection in front / valve body at the rear
2. Upgraded Forging Process
Valve body is made of 42CrMo alloy steel with strict quenching + high-temperature tempering treatment, achieving high strength, toughness, and fatigue resistance.
Valve plate is made of ZG2Cr13, quenched and tempered for enhanced hardness, wear resistance, and corrosion resistance.
3. Three Structure Options Available
Type | Application Scenario | Key Advantage |
Top-entry | General medium cut-off | Easy maintenance |
In-line Flapper | High-frequency operation | Extended fatigue life |
Dart-Type | High flow velocity | Fast response speed |
4. Customization & Maintenance Support
Available in various pressure ratings, sizes, and connection types
Repair kit includes valve plate, valve seat, valve plate bracket, etc.
Emergency delivery supported to avoid downtime losses
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