SS 347 / 347H Needle & Gauge Valves

SS 347 Gauge Bleed Needle Valves Suppliers, SS 347H Needle and Gauge Valves, Stainless Steel 347 Needle / Gauge Valves, SS Gr.347/347H Industrial Needle & Gauge Valve, Grade 347 Stainless Steel Gauge Valves, SS 347H Needle & Gauge Valves Manufacturers in Mumbai, India.

Virgin Engineers is a renowned and authorized organization fully engaged in manufacturing, exporting and supplying Stainless Steel 347 / 347H Needle & Gauge Valves. We designed the product in compliance with national and international standards by using high-quality raw material. While the raw material comes in our manufacturing unit we thoroughly examined the entire raw material under the supervision of quality controllers.

By using high tech machinery and latest tools we manufacture the product as per the norms and standards of the industry. We cater our product to both national as well as international clients. We are a customer oriented firm that aims to offer high quality of standard product to our esteem patrons. As per their given order or demand, we facilitate our product in varied shapes, design, grade, size, length, and thickness. On the other hand, to provide maximum satisfaction we offer the best services and product at demanded by the customers.

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Details about product
Stainless Steel 347 / 347H Needle & Gauge Valves is the type of components that are formed with high alloy austenitic stainless steel containing chromium, columbium and tantalum content. The presence of chromium and tantalum content offers superior creep and stress rupture properties. These austenitic stainless steel needles & gauge valves offer superior general corrosion resistance and in oxidizing circumstances somewhat it offers good resistance other than other grades. The presence of tantalum and columbium features exceptional resistance to corrosion resistance. These gauge valves offer good creep strength and oxidation resistance up to 816 degree C and also exhibits good low-temperature toughness.

The high carbon present in the alloy enhances excellent higher strength and creep resistance above 537 degrees C. These alloys of needles & valves gauges are mainly used in the chromium carbide precipitation circumstances. These needle & gauge valves are only get hardened through the cold working process, therefore these ensures superior ductility and are easily formed. On the other hand, these are readily welded by means of standard welding process that facilitates good weldability.

Testing & quality checking
We implement various testing and inspection programs at our manufacturing plant to acquire an accurate and durable quality product. These tests are like a hydrostatic test, cryogenic test, burst test, intergranular test, radiographic testing, and pitting resistance test. Further other test is a leakage test, shell leakage test, ultrasonic test, pneumatic test, and functional test.

Test certificate
To prove that the products offered by us are designed from superior quality of material we offer material test certificates to our customers in accordance to EN10204/3.1 B. These certificates are like raw material certificate, 100% radiography test certificates, and third-party inspection reports.

In order to give complete details of the product, the various important documentations are attested with the product and are given to the customers. This documentation is like fumigation certificate, guarantee letter, heat treatment charts, NABL approved lab test report, , and commercial invoice.

Packaging of product
The products are supplied in wooden cartons, wooden pallets, wooden boxes, wooden crates, and in cases that assurer’s prevention from rust and damage during the transit.




Needle Valve, Gauge Valves


Needal Valves Sizes

1/8" TO 2" (3 mm to 50 mm) Max Pressure:pressure -150#, 300#,600#


Needle Valves Design:

Forged Body with Inline/Straight or Angle Pattern, Integral Bonnet Design


End Connection Gauge Valves :

½" NPT / G ½ / ½" BSPT



-20 to 650°F (-28 to 343°C)


Gauge Valves Maximum working pressure

Up to 6000 psig (413 bar)


Flow Pattern

Straight/ Angle


End Connections Needle Valves :

NPT, tube socket weld, pipe socket weld,

    SS 347 1.4550 S34700 SUS 347 08Ch18N12B X6CrNiNb18-10
    SS 347H 1.4961 S34709 SUS 347H - X6CrNiNb18-12
    Grade C Mn Si P S Cr Cb Ni Fe
    SS 347 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 20.00 10xC – 1.10 9.00 - 13.00 62.74 min
    SS 347H 0.04 – 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 8xC – 1.10 9.0 -13.0 63.72 min
    Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
    8.0 g/cm3 1454 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %


Stainless Steel 304 Needle Valve – F x F
Needle Valve - F x F
Stainless Steel 304 Needle Valve – F x F – HP
Needle Valve – F x F – HP
Stainless Steel 304 Hex Needle Valve – F x F
Hex Needle Valve – F x F
Stainless Steel 304 Hex Needle Valve – M x F
Hex Needle Valve – M x F
Stainless Steel 304 Hex Needle Valve – Vent
Hex Needle Valve – Vent
Stainless Steel 304 Needle Valve – M x M
Needle Valve – M x M
Stainless Steel 304 Gauge Valve – Multiport
Gauge Valve – Multiport
Stainless Steel 304 Gauge Valve – Block & Bleed
Gauge Valve – Vent

Quality Assurance

Stainless Steel S34700/S34709 Needle & Gauge Valve are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFF. Our products undergo stringent quality tests before they are dispatched.

Material Testing

The material tests performed on SS 347/347H Needle & Gauge Valve are PMI Testing, Ultrasonic Test, Mechanical Testing, Spectro Tests for Chemical Analysis of the grade, Flaring Test, IGC, etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.

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