API 6D Tilting Disc Check Valve

API 6D Tilting Disc Check Valve

API 6D Tilting Disc Check Valve

Tilting disc check valve
Features
Non slamming closure
Smooth and noiseless sealing
Low head loss, low cost operation.
Blow out proof design
Rugged construction
Extended hinge shaft and counterweights on both sides of the valve
Precision machined titling disc and seat for tight shut-off in reverse flow direction
Corrosion resistant inner parts ensure long term service under adverse conditions
All parts, including the seat, are easily field replaceable, thus minimizing down time
Designed with off center pivot to avoid the tendency of the disc to slam on the seat and to aid the operation at low pressure differentials

Technical Specifications
Size Range: NPS 2~24″ (DN50~DN600).
Pressure Rating: Class 150~2500 LB (PN10~PN420).
Temperature Range: -29°C to +595°C.
Design Standards: API 6D, ASME B16.34, ANSI B16.10/B16.25.
Testing: API 598 hydrostatic/pneumatic tests, NACE MR0175 compliance (optional).

Category:

Description

Key Structural Features
✅ API 6D/ASME B16.34 Design:
Tilting Disc Mechanism: Pivoted disc maintains full-open stability at low flow rates (vs. swing checks), reducing cracking pressure and energy loss.
Bolted Bonnet: ASTM A216 WCB body with Class 2500 LB rating for high-pressure oil, gas, and steam pipelines (up to 595°C).

✅ Zero-Leakage Sealing:
Micro-Elastic Metal Seats: Bubble-tight closure (API 598 Class VI) with self-aligning disc-to-seat contact.
RTJ Flanged Ends (ASME B16.5): Metal ring gasket ensures leak-free connections in high-vibration systems.

✅ Silent & Efficient Operation:
Impact-Free Closure: Slow disc seating eliminates water hammer and noise.
Streamlined Flow Path: 30% lower pressure drop than swing checks in low-pressure applications (DN50~DN600).

✅ Durable & Versatile:
Material Options: WCB (standard), WC6 (high-temp), CF8M (corrosion-resistant), LCB (cryogenic).
End Connections: RTJ/RF flanges or butt weld (ASME B16.25) for seamless integration.

Industry Applications
Oil & Gas: Subsea pipelines, compressor discharge lines.
Chemical: Acid/caustic transfer, high-purity systems.
Power Generation: Boiler feedwater, turbine bypass.
LNG: Cryogenic liquid control (-196°C with LCB material).

Why Choose This Valve?
✨ Energy Savings: Optimized flow efficiency reduces pump load in low-flow conditions.
✨ Global Compliance: CE, PED, and API certifications for international projects.

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