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Paul Tube Fittings is a prominent Houston-based USA manufacturer and supplier of stainless steel instrumentation valves known for precision engineering and reliable quality. The company specializes in producing a variety of valves such as needle, ball, check, and manifold valves, all made from high-quality stainless steel. These valves are manufactured with an aim to fulfill strict industry requirements and deliver superior performance under challenging conditions. Supplying oil & gas, petrochemical, power, and instrumentation industries, Paul Tube Fittings provides leak-tight, dependable solutions for operational efficiency, safety, and longevity in critical fluid and gas control systems.
Stainless steel instrument valves are basically iron, 18–20% chromium, 8–12% nickel, and traces of carbon, molybdenum, and manganese. This chemical composition provides excellent corrosion resistance and strength. Mechanically, they provide very good tensile strength (up to 600 MPa), yield strength (approximately 250 MPa), and very good fatigue and wear resistance. They have an austenitic structure that favors high formability and weldability. These characteristics make the valves efficiently work under high pressure and temperature, and hence they are very applicable in harsh industrial applications where reliability and durability are very important.
| GRADE / ALLOY | UNS Number | FORGING | CASTING | BARSTOCK |
|---|---|---|---|---|
| Carbon Steel | K30504 | A105 | A216 WCB | A105 |
| Low Temp Carbon | K03011 | A350 LF2 | A352 LCB | A350 LF2 |
| High Yield Steel | K03014 | A694 F60 | – | A694 F60 |
| 3 1/2 Nickel Steel | K32025 | A350 LF3 | A352 LC3 | A350 LF3 |
| 5 Chrome, 1/2 Moly | K41545 | A182 F5 | A217 C5 | A182 F5 |
| 1 1/4 Chrome, 1/2 Moly | K11597 | A182 F11 | A217 WC6 | A182 F11 |
| 2 1/4 Chrome, 1 Moly | K21590 | A182 F22 | A217 WC9 | A182 F22 |
| 9 Chrome, 1 Moly | K90941 | A182 F9 | A217 WC6 | A182 F9 |
| 13 Chrome | S41000 | A182 F6A | A351 CA15 | A276 or A479 410 |
| 304 | S30400 | A182 F304 | A351 CF8 | A276 or A479 304 |
| 304L | S30403 | A182 F304L | A351 CF3 | A276 or A479 304L |
| 316 | S31600 | A182 F316 | A351 CF8M | A276 or A479 316 |
| 316L | S31603 | A182 F316L | A351 CF3M | A276 or A479 316L |
| 317L | S31703 | A182 F317L | A351 CG8M | A276 or A479 317L |
| 321 | S32100 | A182 F321 | – | A276 or A479 321 |
| 347 | S34700 | A182 F347 | A351 CF8C | A276 or A479 347 |
| 17-4PH | S17400 | A564 630 | – | – |
| Alloy 400 | N04400 | B564 N04400 | A494 M35-1 | B164 N04400 |
| Alloy K500 | N05500 | – | – | B865 N05500 |
| Alloy 800 | N08800 | B564 N08810 | – | B408 N08800 |
| Alloy 825 | N08825 | – | – | B425 N08825 |
| Alloy 600 | N06600 | B564 N06600 | A494 CY40 | B166 N06600 |
| Alloy 625 | N06625 | B564 N06625 | A494 CW 6MC | B446 N06625 |
| Alloy B2 | N10665 | B564 N10665 | A494 N 12MV | B335 N10665 |
| Alloy C | N10002 | – | A494 CW6M | – |
| Alloy C22 | N06022 | B574 N06022 | A494 CX2MW | B574 N06022 |
| Alloy C276 | N10276 | B564 N10276 | A494 CW12 MW | B574 N10276 |
| 22% Duplex | S31803 | A182 F51 | A890 Gr 4A | A276 or A479 S31803 |
| 25% Duplex | S32750 or 32760 | A182 F53 | A890 Gr 6A | A276 or A479 S32750 or 60 |
| 254 SMO | S31254 | A182 F44 | A351 CK3MCuN | A182 F44 |
| 904L | N08904 | B625 N08904 | – | B649 N08904 |
| Titanium | R50400 | B381 F2 | B367 C2 | B348 Gr 2 |
At Bhavesh Tube Fittings, we are a leading supplier, manufacturer, and exporter of Stainless Steel Instrumentation Valves in Houston, USA. Our state-of-the-art manufacturing facilities, strategically located in the USA, 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.
Paul Tube Fittings is a leading supplier and stockist of premium Stainless Steel Instrumentation Valves in Houston, USA. 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.
Contact us to get a quick quote for your requirement.
Stainless steel instrumentation valves find application in numerous critical applications in oil & gas, pharmaceutical, chemical process, power generation, food & beverage, and marine industries. They are used to control and isolate fluid or gas flow in high-pressure systems. They provide precise flow regulation, leak-proof operation, and safety in analytical instruments, gas distribution systems, and process control lines. Owing to their superior corrosion resistance as well as mechanical strength, they are best suited for use in both offshore and onshore applications with long-term reliability in severe operating conditions.
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