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Alloy 625 Welded Overlay LF2 Trunnion Ball Valves

The Alloy 625 Welded Overlay LF2 Trunnion Ball Valve is a sophisticated engineering solution designed for "Sour Service" and highly corrosive environments.

Model:
Q364Y-150C
Brand:
DIDTEK
Code:
TRBV-FTBV-034

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Alloy 625 Overlay Ball Valve Inconel 625 Clad LF2 Valve Welded Overlay Trunnion Valve API 6D Clad Ball Valve Sour Service Valve Manufacturer

Product Detail

Product Parameters

Parameters

Application & Function

Product Detail

The Alloy 625 Welded Overlay LF2 Trunnion Ball Valve is a sophisticated engineering solution designed for "Sour Service" and highly corrosive environments. By applying a UNS N06625 (Inconel 625) corrosion-resistant alloy (CRA) layer onto a base of ASTM A350 LF2 carbon steel, this valve offers the structural strength and cost-efficiency of carbon steel with the superior chemical resistance of a nickel alloy. This cladding process is typically focused on critical wetted areas—such as seat pockets, stem sealing areas, and the internal bore—ensuring the valve survives aggressive media without the prohibitive cost of a solid alloy construction. B-34 DIDTEKFTMSBV - Alloy 625 Welded Overlay LF2 Trunnion Ball Valves

Product Parameters

Parameter Name	Parameter
Size Range	8''*6''
Pressure Range	150LB
Material	LF2 CL1
Seal	Soft Seat: NO8825+RPTFE
Temperature Range	-46°C~180°C
Design According	API 6D
Face to Face	ASME B16.10
End Flanges	ASME B16.5
End Connection Type	RF
Fire Safety	API 6FA
Inspection and Test	API 598
Operate	Worm Gear
Body Type	Split Body
Type of Valve	Trunnion Ball Valve
Suitable Medium	Water, Steam, Oil and some corrosive liquid

Design Description

Cost-Effective Corrosion Resistance: Provides the same corrosion protection as solid Alloy 625 in critical areas, reducing total material costs by up to 50-70%.
Superior Cladding Integrity: The welding overlay (typically 3mm to 5mm thick) is applied using automated PTA or GTAW processes, ensuring a high-strength metallurgical bond that won't peel or crack.
LF2 Low-Temperature Performance: The base material maintains excellent impact toughness down to -46℃, making it ideal for high-pressure arctic or subsea applications.
Extreme Chemical Resilience: Alloy 625 cladding protects against pitting, crevice corrosion, and stress corrosion cracking (SCC) caused by high chlorides and H₂S.
NACE MR0175/ISO 15156 Compliance: Specifically designed for sour oil and gas production environments where sulfide stress cracking is a constant threat.

Parameters

Brand	DIDTEK
Structure	Trunnion Ball
Material	Low Temp Carbon Steel
Type	Forged Ball Valve
Test	100% quantity tested before delivery
Guarantee	18 months after shipments and 12 months after installed
Delivery	15 - 60 days
Sample	Sample Available by Didtek Valve
Color	Customer request
Packing	Plywood Case
MOQ	1 Set
Certificate	API6D, CE, UKCA, ISO9001, TS, EAC, ISO15848, TA-LUFT, API607, API6FA etc.
Place of Origin	Zhejiang, China (Mainland)
Delivery Detail	Shipped in 15-30 days after payment
Port	Shanghai Or Ningbo
Payment Terms	L/C,D/A,D/P,T/T, Western Union

Application & Function

Alloy 625 Welded Overlay LF2 Trunnion Ball Valves are widely utilized in demanding environments due to their superior material properties:

Sour Oil & Gas Production: Handling "sour" fluids with high concentrations of H₂S and CO₂.
Offshore & Subsea Pipelines: Protecting internal surfaces from corrosive seawater and aggressive hydrocarbons.
Refinery Overhead Systems: Where localized high-corrosion protection is required in large diameter valves.