Duplex Stainless Steel Instrumentation Valves

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Jassem Tube Fittings, a trusted manufacturer and supplier in Doha, Qatar, offers high-quality Duplex Steel Instrumentation Valves engineered for accurate control and safe isolation in critical process systems. Designed to perform reliably in high-pressure and corrosive environments, these valves ensure precise flow regulation and long-term operational safety. Jassem Tube Fittings combines advanced manufacturing techniques with strict quality control to meet international standards. Duplex Steel Instrumentation Valves are valued for their strength, corrosion resistance, and dependable performance, making them a preferred choice for demanding industrial and instrumentation applications.

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Duplex Steel Instrumentation Valves are manufactured from a dual-phase stainless steel alloy containing approximately 22% chromium, 5% nickel, and 3% molybdenum, with a balanced austenitic and ferritic structure. This composition provides excellent resistance to corrosion, pitting, and stress corrosion cracking. Mechanically, they offer high tensile and yield strength, good toughness, and superior fatigue resistance. The duplex structure ensures dimensional stability, pressure resistance, and reliable sealing under fluctuating temperatures and operating conditions.

Duplex Stainless Steel Instrumentation Valves Specifications

Casting Grade

ASTM A890 Grade 3A / 1.4468 and ASTM A890 Grade 1B

Media

Oil, Gas & Water

Temperature of Media

Medium Temperature

Pressure & Temperature Limit accordance to ANSI/ASME B16.34

Duplex (PSI/ Bar)
Class 1500	3600 psig/248 bar
Class 2500	6000 psig/414 bar
Class 4500	10000 psig/689 bar

Operation Way

Manual, Electric actuator, Pneumatic

Standard

3A/ ISO/ DIN/ SMS / ASTM / JIS

Brand Name

OS-LOK

Packaging Details

PVC package, wooden case or as per customer’s requirement.

Leakage rate

Soft Seal: zero leakage, 100% Leak test
Hard Seal ≤ Rated Flow 10-5

Working pressure

3000 psig (206 bar)

Seal ring material

PPL, PTFE, PPL Soft Graphite

Manufacturing Process

Forged bar stock

OEM service

Yes

Connection

Single Ferrule
Two Ferrule (Double Ferrule)
Twin Ferrule
Thread

Thread Type

BSPP
C.61 4-Bolt Flange
C.61 Combo 4B + Split
C.61 Split Flange
C.62 4-Bolt Flange
C.62 Combo 4B + Split
C.62 Split Flange
ISO 6149
NPT
SAE

Function

2-Way
3-Way
4-Way
5-Way
Diverter
Normally Closed
Normally Open

Flow Rate

.93, 2.34, 6.42, .70, 1.04, 3.62,.87 Cv

Applicable Standard

Design & Manufacture : BS 1868
Face to Face according to : ASME B16.10
Flange Dimensions as per: ASME B16.5
Pressure & Temperature : ASME B16.34
Test & Inspection accordance to : API 6D / API 598
Visual Inspection accordance to : MSS SP-55
Marking accordance to : MSS SP-25

Approvals

MSS SP-110
API-598
ANSI B1.20.1
ANSI B16.11
NACE Certified
ANSI B16.34
API 607 Fire Safe

Types

Duplex High Pressure Ball Valve 1”-Inch 400 bar 6000 psi BSP & NPT

Top Duplex Stainless Steel Instrumentation Valves Manufacturing Company in Doha

At Jassem Tube Fittings, we are a leading supplier, manufacturer, and exporter of Duplex Stainless Steel Instrumentation Valves in Doha, Qatar. Our state-of-the-art manufacturing facilities, strategically located in the Qatar, enable us to deliver high-quality solutions that meet your specific requirements. With a comprehensive inventory of Monel materials, we are well-equipped to fulfill your needs efficiently. Our commitment to excellence and customer satisfaction ensures that we consistently maintain a ready stock of Monel Manifold Valves to support your operational demands.

Types of Duplex Stainless Steel Instrumentation Valves

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Largest Manufacturer and Supplier of Duplex Stainless Steel Instrumentation Valves in Doha, Qatar

Jassem Tube Fittings is a leading supplier and Stockist of premium Duplex Stainless Steel Instrumentation Valves in Doha, Qatar. Our products find extensive application across diverse industries, and we are dedicated to delivering outstanding service while ensuring high customer satisfaction. Our specialized finishing techniques distinguish us in the metal industry, enhancing the performance and durability of our valves. We are committed to consistently providing top-quality Monel Manifold Valves while effectively addressing the unique needs of our customers.

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

Duplex Stainless Steel Instrumentation Valves Uses

Duplex Steel Instrumentation Valves are widely used in oil and gas processing, petrochemical plants, chemical industries, and offshore installations. They are also suitable for power generation, desalination plants, marine systems, and industrial instrumentation lines. These valves play a critical role in controlling flow, pressure, and isolation of media in measurement and control systems. Their durability and corrosion resistance help reduce maintenance, improve safety, and ensure consistent performance in harsh and demanding environments.