SS 321 / 321H Needle & Gauge Valves

Stainless Steel 321 Needle / Gauge Valves, SS Gr.321/321H Industrial Needle & Gauge Valve, SS 321 Gauge Bleed Needle Valves Suppliers, SS 321H Needle and Gauge Valves, Grade 321 Stainless Steel Gauge Valves, SS 321H Needle & Gauge Valves Manufacturers in Mumbai, India.

Stainless Steel which is also known as inox steel offers some of the great and unmatched properties to the fabricated products. The alloy is an iron alloy having a little amount of chromium present (10.5%) and considerable amount of molybdenum. Stainless Steel can be used in the fabrication of various types of valves due to its high strength and great fabricability. This versatile material offers other resistive properties to the products. The grade is widely utilized in the manufacturing of the Needle and gauge valves.

About Stainless Steel 321:
Alloy 321 which is also known as UNS S32100 is known to be the most stabilized SS version that has some of the great advantages over any other grade. It has excellent resistance to intergranular corrosion, great resistance to high temperature and pitting resistance to chromium carbide precipitation at high temperature of approx 1500 Degree F. This titanium stabilized Austenitic SS has outstanding general corrosion and higher creep rupture properties than any other alloy grade. The grade offers good toughness to the products even in the low temperature environment.

Grade 321 SS Screwed End Needle Valve, Stainless Steel 321H Hydraulic Needle Valve, SUS 321H Parker Needle Valve, SS 321 Gauge Vent Valves Exporters, 321H Stainless Steel Multiport Gauge Valves Supplier in Mumbai, India.

Austenitic Stainless Steel 321 Needle / Gauge Valves, SS 321 Autoclave Needle Valve, SS 321/321H Gauge Valve, SS 321H Integral Bonnet Needle Valve, SS 321H Forged Body Gauge Valve, SS 321H Needle Valve, AISI 321 Needle and Gauge Valves

About Stainless Steel 321H:
The Alloy 321H which is UNS S32109 has the higher carbon content in it that offers some of the excellent resistive properties. The grade was developed in order to enhance the creep resistance property, and high temperature approx 1000degree F. The carbon content in the grade helps in offering the best dual certifications. The hardening process involves the heat treatment which includes the cold working process.

About Industry:
Virgin Engineers, one of the recognized names in the market offers some of the excellent and top notch quality of valves to their customers across the world. We are the leading manufacturer, exporter and supplier of Stainless Steel 321 / 321H Needle & Gauge Valves. The raw material used by us is bought from trusted market vendors. Also, our professionals check the quality of the material before taking it into the fabrication process. Some of the unique features offered by us include high end finishing, sleek design, great accuracy in dimensions; high performance and greater durability are some of the traits. Also, under the esteemed guidance of the trained professionals, we conduct the manufacturing process.

Our basic aim is to provide a right quality of product to the buyer. Buyers can buy these valves in customized manner varying in size, shape and thickness as per their necessity.

Relevant Tests certifications:
We are engaged in offering essential certificates to our buyers which includes MTC report, radiography test reports and raw material certificate are some of the certifications offered along with the Stainless Steel 321 / 321H Needle & Gauge Valves.

documents offered:
At Virgin Engineers, we provide relevant documents to our buyers which help them to counterpart the product. Offered testaments such as welding procedure specification, QAP, heat treatment chart, material tests certificate and packaging lists of the product which includes net and the gross weight of the product are some of the documents offered.




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 321 1.4541 S32100 SUS 321 X6CrNiTi18-10
    SS 321H 1.4878 S32109 SUS 321H X12CrNiTi18-9
    Grade C Mn Si P S Cr N Ni Ti
    SS 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 - 12.00 5(C+N) – 0.70 max
    SS 321H 0.04 – 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 – 12.00 4(C+N) – 0.70 max
    Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
    8.0 g/cm3 1457 °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 S32100/S32109 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 Stainless Steel 321/321H 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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