Duplex Check Valve

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Gabriel Tube Fittings, located in Cairo, Egypt, is your go-to source for top-notch Duplex Check Valves. These valves are celebrated for their durability and reliability, expertly designed to prevent backflow in piping systems, ensuring that fluids flow smoothly and safely. At Gabriel Tube Fittings, precision engineering meets rigorous quality control, resulting in Duplex Check Valves that can handle even the toughest industrial conditions. Built to comply with international standards, these valves boast impressive corrosion resistance and mechanical strength, making them perfect for industries like water treatment, oil and gas, chemical processing, and power generation.

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Constructed from duplex stainless steel, Duplex Check Valves blend austenitic and ferritic stainless steel phases. This unique alloy provides remarkable strength, typically ranging from 620 to 850 MPa in tensile strength, along with outstanding resistance to stress corrosion cracking and pitting. The balanced microstructure of duplex stainless steel enhances toughness and durability, allowing these valves to perform well under high pressure and temperature. Plus, their excellent corrosion resistance significantly extends their service life, especially in harsh chemical and marine environments.

Duplex Check Valve Specifications

INSTRUMENTATION VALVES MATERIAL	DUPLEX 2205
INSTRUMENTATION VALVES SIZE	6 MM TO 50 MM and 1/8″ TO 2″
PATTERN FLOW	STRAIGHT
THREADS	BSPP, NPT, METRIC, BSPT,UNF, JIC
INSTRUMENTATION VALVES ORIFICE SIZE	2 MM – 40 MM
CONNECTION	SOCKET WELD END, TUBE END, THREADED, FLANGE END
INSTRUMENTATION VALVES BODY SHAPE	HEXAGON
EQUIVALENT BRANDS	PARKER, SWAGELOK, DK-LOK, STAUFF, OLIVER VALVES, HAMLET, HOKE
CRACKING PRESSURE	0.5 BAR
TYPE	SPRING TYPE, POPPET TYPE
RATING PRESSURE	20000 PSI, 1500 PSI, 10000 PSI, 3000 PSI, 6000 PSI, 15,000 PSI
MEDIA TEMPERATURE	(-50* C – 350*C ) AS PER PRESSURE RANGE
MEDIA	SEA WATER , HYDRAULIC AIR, OIL, GAS, WATER, HOT WATER , STEAM, COLD WATER , CHEMICAL
BODY TYPE	FORGED, BAR STOCK
INSTRUMENTATION VALVES PACKING DETAILS	WOODEN PALLET, BOX PACKING

Duplex Check Valve Chemical Composition

ELEMENT	DUPLEX 31803	DUPLEX 2205
C	0.030 max	0.030 max
NI	4.50 – 6.50	4.50 – 6.50
MN	2.00 max	2.00 max
S	0.020 max	0.20 max
FE	63.72 min	63.54 min
P	0.030 max	0.030 max
SI	1.00 max	1.00 max
MO	3.0 – 3.5	2.50 – 3.50
CR	22.0 – 23.0	21.0 – 23.0
N	0.14 – 0.20	0.08 – 0.20

Duplex Check Valve Mechanical Properties

Grade	Hardness(BHN)	UTS (MPa)	YS (MPa)	% Elongation
2205	293 max.	655 min.	450 min.	25 min.
31803	293 max.	620 min.	450 min.	25 min.

Top Duplex Check Valve Manufacturing Company in Cairo

At Gabriel Tube Fittings, we are the leading supplier, manufacturer, and exporter of Duplex Check Valves in Cairo, Egypt. Our advanced manufacturing facilities, strategically located in the Egypt, allow us to deliver high-quality, customized solutions tailored to your specific needs. With an extensive inventory of over 16,000 tons of premium-grade duplex stainless steel materials, we are fully equipped to meet your demands efficiently. Our commitment to excellence and efficiency ensures that we consistently maintain sufficient stock to support your business requirements and provide reliable performance in critical applications.

Types of Duplex Check Valve

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Duplex Check Valve Equivalent Grade

STANDARD	UNS	WERKSTOFF NR.
Duplex 2205	UNS S31803 / UNS S32205	1.4462 / 1.4462

Largest Manufacturer and Supplier of Duplex Check Valve in Cairo, Egypt

Duplex Check Valves are commonly found in applications that demand reliable backflow prevention, such as water and wastewater treatment, oil and gas pipelines, chemical processing facilities, and marine systems. Their capability to manage high pressures and corrosive fluids makes them essential for critical safety and operational functions. By ensuring unidirectional flow, these valves protect pumps, compressors, and other equipment, ultimately reducing maintenance costs and boosting system efficiency across a variety of industries.

We offer These Products as per DIN, ISO, JIS or ANSI Standard.

Duplex Check Valve Uses

Duplex Check Valves are widely used in various industries due to their exceptional strength and corrosion resistance. In the oil and gas sector, they prevent backflow and maintain system integrity in pipelines and processing plants. In chemical processing, these valves handle aggressive substances, ensuring safe flow control. They are also utilized in marine applications, providing reliable performance in seawater systems. Additionally, Duplex Check Valves find applications in water treatment facilities, power generation, and other high-pressure environments, where durability and reliability are essential for operational efficiency and safety.