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ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications
ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications
ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications
ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications
ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications
ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications

ANSI/ASME B31.3 Certified VCR Welded Union Fittings for Vacuum to High Pressure Applications

US$ 6.00 ~ 60.00
Min.Order: 1
Product origin: Chengdu, Sichuan, China
Category: Tools
Product Name: Tools
Availability:In Stock
Product Review : 92 Reviews
Infringement complaint:
* Please contact the supplier via whatsapp first before placing an order
  • Model Number : WU Series
  • Standards : ANSI/ASME B31.3, B31.1, GB
  • Material Options : 316, 316L, 316L VAR Stainless Steel
  • Connection Type : Welded Union
  • Surface Finish : 10μin. (0.25μm) Ra
  • Head Design : Hexagon
  • Size Range : 1/16" to 1"
  • Pressure Standard : ANSI/ASME B31.3 Compliant
  • Temperature Range : -425°F to 1000°F (-254°C to 538°C)
  • Gasket Materials : 316L SS, Copper, Nickel
  • Certifications : Ultrahigh Purity Clean Room Manufactured
  • Minimum Order : 1 Piece
  • Customization : OEM Services Available

Our VCR metal gasket face seal fittings feature an advanced metal-to-metal sealing technology that ensures perfect leak-tight performance across a wide range of applications, from critical vacuum systems to high pressure environments. These precision-engineered fittings are designed for reliability in demanding industrial conditions.

The female threads are silver plated to prevent galling during installation and maintenance, while the smooth internal diameter transition minimizes potential entrapment areas that could compromise system integrity. Each fitting comes with two test ports for convenient leak testing procedures.

VCR metal gasket face seal fitting

Manufactured with exacting standards, these fittings feature a surface finish with a roughness average of 10μin. (0.25μm) Ra on both glands and bodies. Available in three premium stainless steel material options: 316, 316L, and 316L VAR (Vacuum Arc Remelt) to meet various application requirements.

Stainless steel VCR fitting cross-section

The pressure ratings are calculated in strict accordance with ANSI/ASME B31.3 standards, with working pressure for ANSI/ASME B31.1 applications determined by multiplying the base rating by 0.94. This ensures compliance with industry safety standards across different operating conditions.

Temperature performance varies by component material, with 316 stainless steel fittings rated for operation from -425°F to 1000°F (-254°C to 538°C). Gasket materials include 316L stainless steel, copper (rated to 400°F/204°C), and nickel (rated to 600°F/316°C) to accommodate different thermal requirements.

VCR fitting temperature rating chart

B***T 2026-01-26

Quick delivery and excellent packaging. The order arrived ahead of schedule, which was a pleasant surprise. The fittings were securely packed, preventing any damage during transit. Quality appears to be very high upon initial inspection; the stainless steel has a good finish and the welds look clean and precise. Customer service was responsive when I had a pre-sale question, providing clear and helpful information. Overall, a very satisfactory purchase experience from start to finish. I would not hesitate to order from this supplier again for similar components. The combination of reliable logistics, apparent product integrity, and good support makes them a recommended source.

F***X 2026-01-25

Lately, I ordered a batch of these fittings and the shipping was incredibly fast. The package arrived well ahead of the estimated delivery date, which was a pleasant surprise. Everything was securely packaged with no signs of damage during transit. The quality of the stainless steel fittings appears to be excellent upon initial inspection; the machining is precise and the surfaces are smooth with no visible defects. As for customer service, the communication was clear and prompt. Any pre-sale inquiries I had were answered thoroughly and in a timely manner. Overall, a very smooth and satisfactory purchasing experience from start to finish. I would certainly consider ordering from this supplier again for future project needs.

Y***C 2026-01-24

Rapid and reliable delivery was the first thing I noticed. The shipping was incredibly fast, arriving well ahead of the estimated schedule, which was a pleasant surprise. The packaging was exceptionally secure, with each fitting individually protected to prevent any scratches or damage during transit. Regarding quality, the craftsmanship is immediately apparent. The stainless steel has a flawless, polished finish, and the welds on the unions look absolutely pristine and uniform. The components feel substantial and precisely machined in hand, inspiring immediate confidence in their performance for demanding applications. The service aspect was equally impressive. Communication was clear and proactive, with timely updates provided at every stage of the order process. Any preliminary questions I had were answered promptly and thoroughly by a knowledgeable representative, making the entire purchasing experience smooth and hassle-free. Overall, this was a seamless transaction from start to finish, combining top-tier logistics with outstanding product quality and excellent customer support. Highly satisfactory.

L***J 2026-01-20

Yikes, the shipping was lightning fast! I was genuinely surprised by how quickly the order arrived. The packaging was secure and professional, which gave me immediate confidence. Regarding the quality, the fittings feel exceptionally solid and well-machined. The stainless steel has a perfect finish with no visible flaws. The service from the team was also top-notch; they were responsive and helpful with my pre-order questions. Overall, a very smooth and satisfying experience from start to finish. Highly recommended for anyone needing reliable fittings.

H***Z 2026-01-16

Keenly efficient logistics were the standout feature of this order. The package arrived significantly ahead of the estimated schedule, which was a very pleasant surprise. Every component was meticulously packed with no signs of damage or mishandling during transit. The quality of the fittings themselves is immediately apparent; the machining is precise, the surfaces are flawless, and the stainless steel has a consistent, high-grade finish that inspires confidence for the intended high-pressure and vacuum applications. They feel substantial and exactly as specified. Regarding service, the communication was clear and proactive. Any preliminary queries were addressed promptly and professionally. The overall experience from browsing to unboxing was seamless. This combination of rapid, secure delivery, exceptional manufacturing standards, and attentive support makes for a highly satisfactory procurement process. I would not hesitate to source these critical components from this supplier again for future project needs.

H***I 2026-01-14

Logistics were handled flawlessly. The order arrived ahead of schedule, which was a pleasant surprise. The packaging was exceptionally secure, with each fitting individually protected to prevent any transit damage. The tracking information provided was accurate and updated regularly, making the entire delivery process transparent and stress-free. Quality is immediately apparent upon inspection. The stainless steel has a superior finish, with no visible imperfections or burrs. The welds on the unions are clean, consistent, and show excellent craftsmanship, which is critical for the intended pressure and vacuum applications. The machining precision on the metal gasket sealing faces is impeccable, ensuring a reliable seal right out of the box. Service from the supplier was outstanding. Communication was prompt, clear, and professional from the initial inquiry through to the post-delivery confirmation. Any questions regarding specifications or certifications were answered thoroughly and without delay. The overall experience inspires confidence in both the product and the company behind it. This level of performance in logistics, quality, and customer support is exactly what one requires for critical process applications.

X***L 2026-01-14

Keenly impressed with the overall experience. The delivery was remarkably swift, arriving well ahead of the estimated schedule, which was a fantastic start. The packaging was secure and professional, ensuring everything arrived in perfect condition. Upon inspection, the build quality of the fittings is exceptional; the machining is precise and the materials feel solid and premium, exactly as one would expect for such a critical application. Customer service was also proactive and helpful when I had a pre-shipment inquiry, providing clear and prompt answers. A very smooth and satisfactory transaction from start to finish.

A***I 2026-01-13

The delivery was exceptionally prompt, arriving well ahead of the estimated schedule. Tracking information was clear and updated regularly, which made planning for the installation very straightforward. The packaging was robust and secure, ensuring all components arrived in perfect condition without any signs of damage or mishandling during transit. This attention to logistical detail is highly commendable and reflects a professional operation. Regarding the product quality, the fittings exhibit outstanding craftsmanship. The machining is precise, with clean, sharp edges and a flawless finish on the stainless steel. The welds are uniform and smooth, indicating high-quality manufacturing standards consistent with the stated certifications. These fittings feel substantial and reliable, exactly what is required for critical applications. Customer service has been equally impressive. Any pre-shipment inquiries were answered quickly and thoroughly by knowledgeable representatives who demonstrated a clear understanding of the product specifications and applications. The overall experience, from ordering to receipt, has been seamless and efficient. This level of performance in logistics, product integrity, and support instills great confidence in the supplier and their offerings for demanding industrial environments.

Q***H 2026-01-13

Unexpectedly fast delivery on these VCR fittings, which was a major relief for our project timeline. The packaging was secure and professional, with each fitting individually protected to prevent any scratches or damage during transit. Regarding quality, the stainless steel construction feels robust and precisely machined. The surfaces are smooth, and the metal gasket face seal interfaces look flawless, exactly as one would hope for in certified components meant for demanding pressure applications. Customer service was responsive and informative when I had a pre-purchase questions about specifications, providing clear documentation promptly. Overall, a very satisfactory procurement experience from logistics through to the product received.

R***F 2026-01-10

Xcellent experience overall. The shipping was remarkably fast, arriving well ahead of the estimated delivery window. The packaging was exceptionally secure, with each fitting individually protected to prevent any transit damage. Regarding quality, the components appear to be manufactured to a very high standard. The stainless steel has a consistent, polished finish, and the welds on the union fittings look clean and precise, which inspires confidence in their certification for pressure applications. Customer service was proactive and informative; my pre-sale inquiry about material specifications was answered comprehensively and promptly. While I have not yet installed these in my system, the out-of-box inspection and the overall transactional process were seamless and professional. This supplier clearly prioritizes reliable logistics, solid construction, and supportive service.

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