Manufacturer, Supplier & Exporter of Super Duplex Steel Butterfly Valve

Super Duplex Steel Butterfly Valve is a critical component in industrial fluid control systems, known for its superior corrosion resistance, high strength, and excellent durability. Manufactured by Riddhi Siddhi Impex, a reputed name in the valve manufacturing and supply industry, these valves are engineered to meet the demanding requirements of sectors such as oil and gas, petrochemicals, desalination plants, chemical processing, and marine applications. Their unique alloy composition provides enhanced resistance to chloride stress corrosion cracking, making them ideal for harsh and aggressive environments.

Riddhi Siddhi Impex specializes in producing high-quality Super Duplex Steel Butterfly Valves, fabricated from premium UNS S32750 and S32760 grades of super duplex stainless steel. This material combines the benefits of both austenitic and ferritic stainless steels, offering an excellent balance between strength and corrosion resistance. The valves are designed to withstand high pressure and temperature conditions, ensuring reliable performance even in the most challenging operational settings.

One of the key advantages of Super Duplex Steel Butterfly Valves from Riddhi Siddhi Impex is their lightweight and compact design, which facilitates easier installation and maintenance compared to traditional gate or globe valves. The butterfly valve’s quarter-turn operation allows for quick opening and closing, making it highly efficient for regulating flow in pipelines. Their tight sealing mechanism ensures minimal leakage, helping industries maintain safety and process integrity.

Riddhi Siddhi Impex caters to an extensive domestic market across India, supplying Super Duplex Steel Butterfly Valves to major metropolitan and industrial hubs including Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, Rajpipla, and more. This widespread presence ensures timely delivery and excellent customer support across various regions..

Each Super Duplex Steel Butterfly Valve manufactured by Riddhi Siddhi Impex undergoes stringent quality control and testing procedures to meet international standards such as API, ANSI, ASME, and ISO. The valves are available in multiple pressure ratings and sizes, allowing customization to suit specific process requirements. Additionally, different types of actuation options—manual, pneumatic, electric, and hydraulic—are offered to enhance operational flexibility.

Super Duplex Steel Butterfly Valve Specifications

Specification of Super Duplex Steel Butterfly Valve

Parameter	Details
Material	Super Duplex Stainless Steel UNS S32750 / S32760
Size Range	1/2" to 48" (DN15 to DN1200)
Pressure Rating	Class 150, 300, 600, 900, 1500
End Connections	Wafer, Lug, Double Flanged
Face to Face	As per API 609, ISO 5752
Operation	Manual, Electric, Pneumatic Actuation
Seal Type	Metal Seated, Soft Seated (PTFE, Reinforced PTFE)

Chemical Composition (%) of Super Duplex Stainless Steel

Element	Typical Range (%)
Chromium (Cr)	24 - 26
Nickel (Ni)	6.0 - 8.0
Molybdenum (Mo)	3.0 - 5.0
Nitrogen (N)	0.18 - 0.25
Iron (Fe)	Balance
Other elements (Cu, Mn, Si)	Minor amounts

Mechanical Properties of Super Duplex Stainless Steel

Property	Value	Unit
Tensile Strength	758 - 862	MPa
Yield Strength	450 - 550	MPa
Elongation (in 50 mm)	25 - 30	%
Hardness (Brinell)	≤ 280	HB
Impact Strength (Charpy V-notch)	> 60	Joule

Dimension Chart (Typical Wafer Type)

Size (inches)	Face to Face (mm)	Face to Face (inches)	Weight (kg)
2"	51	2.0"	2.5
4"	89	3.5"	5.6
6"	114	4.5"	9.2
8"	127	5.0"	13.0
10"	140	5.5"	18.0

Equivalent Grades and Standards

Property	Super Duplex Grade	Equivalent Grade	Standards
Material Grade	UNS S32750 / S32760	ASTM A182 F53 / F55	ASTM, ASME, EN, ISO
Valve Standard	API 609	ISO 5752	API, ISO

Other Types of Butterfly Valves

Type	Description
Lug Type	Valves with threaded inserts for secure one-side installation
Wafer Type	Compact design for installation between two flanges
Flanged Type	Valves with flanged ends for bolted connection
Triple Offset	Advanced design providing bubble-tight shutoff for high pressure applications

The corrosion resistance of these valves is further augmented by precise manufacturing processes, including forging, casting, and CNC machining. The seals and seats are made from high-performance materials like PTFE, reinforced PTFE, or metal seated, ensuring long-lasting service life and resistance to chemical attack. These features collectively reduce maintenance costs and downtime, offering better lifecycle value to industries.

Frequently Asked Questions (FAQs)

Q1: What industries commonly use Super Duplex Steel Butterfly Valves?

A1: These valves are extensively used in oil & gas, petrochemical, marine, desalination, and chemical processing industries due to their excellent corrosion resistance and strength.

Q2: Can Riddhi Siddhi Impex customize Super Duplex Steel Butterfly Valves?

A2: Yes, we provide customized solutions including sizes, pressure ratings, seat materials, and actuation options to fit specific customer requirements.

Q3: How does Super Duplex Steel compare to regular stainless steel?

A3: Super Duplex Steel offers higher strength and superior resistance to chloride stress corrosion cracking compared to standard austenitic stainless steels.

Q4: What certifications do these valves have?

A4: Our Super Duplex Steel Butterfly Valves conform to international standards such as API 609, ASTM, ASME, and ISO, ensuring reliable quality and performance.