Merit Brass
150# Stainless Steel Welding Spud/Tank Flange ISO 49
- SKU:
- K445-K645
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
150# Stainless Steel Welding Spud / Tank Flange ISO 49
150# Stainless Steel Welding Spuds / Tank Flanges are standard-pattern stainless steel fittings designed to create a durable connection point on tanks, vessels, and compatible piping assemblies. The weld-on body provides a permanent attachment to the tank or vessel while the fitting connection provides access for piping, valves, instrumentation, or other system components.
Available in AISI 304 or 316 stainless steel, these fittings conform to ISO 49-1983 (E) dimensional requirements and are listed as low lead certified to NSF/ANSI 61.
Product Highlights
- 150# stainless steel welding spud / tank flange
- Designed for welded installation on tanks and vessels
- Provides a durable piping connection point
- Available in AISI 304 or 316 stainless steel
- Low lead certified to NSF/ANSI 61
- Dimensions conform to ISO 49-1983 (E)
- Corrosion-resistant stainless steel construction
- Suitable for industrial, commercial, sanitary, and process applications
- Helps prevent contamination associated with rust, scale, and small particles
- Resists corrosive attack from many industrial and chemical solutions and mixtures
- Provides strength at elevated temperatures
- Long service-life potential in compatible applications
Welding Spud / Tank Flange Design
A welding spud, also commonly referred to as a tank flange, provides a dedicated connection point on a tank, vessel, or similar fabricated component.
The fitting body is welded directly to the compatible surface, creating a permanent attachment that can then be incorporated into the surrounding piping or equipment system.
Weld-On Installation
The fitting is designed for welded installation, providing a permanent connection to the tank or vessel wall.
Proper welding procedures should be selected for the stainless steel grade, tank material, wall thickness, service media, and applicable fabrication requirements.
Technical Specifications
| Product Type | Welding Spud / Tank Flange |
|---|---|
| Pressure Class | 150# |
| Material | Stainless Steel |
| Material Grades | AISI 304 or 316 |
| Dimensional Standard | ISO 49-1983 (E) |
| Installation Style | Weld-On |
| Primary Function | Tank / Vessel Piping Connection |
| Certification | Low Lead Certified NSF/ANSI 61 |
304 vs. 316 Stainless Steel
304 Stainless Steel
- General-purpose stainless steel grade
- Strong corrosion resistance for many applications
- Commonly used in water and process systems
- Suitable for many commercial and industrial environments
316 Stainless Steel
- Enhanced corrosion resistance
- Commonly selected for more aggressive environments
- Useful in many chemical and process applications
- Often selected for marine or chloride-exposed service
Stainless Steel Construction
The stainless steel construction provides corrosion resistance while helping prevent contamination associated with rust, scale, and small particles that can occur with some other metallic materials.
The supplied product information states that the material resists corrosive attack from hundreds of industrial and chemical solutions and mixtures and provides greater strength at elevated temperatures.
NSF/ANSI 61 Low Lead Certification
This fitting is listed as low lead certified to NSF/ANSI 61, supporting use in compatible potable-water applications where applicable code and system requirements are met.
Always confirm the requirements for the complete welded assembly, local codes, service media, and operating conditions before installation.
ISO 49 Standard Pattern
Dimensions conform to ISO 49-1983 (E), providing dimensional consistency within the applicable stainless steel fitting family.
Use the manufacturer document below to confirm welding spud / tank flange dimensions before ordering or fabrication.
Common Applications
Tank & Vessel Connections
- Storage tanks
- Process vessels
- Water tanks
- Fabricated stainless steel equipment
- Piping takeoff connections
Industrial & Process Service
- Industrial process piping
- Chemical handling systems
- Water treatment equipment
- Sanitary and commercial systems
- Corrosion-resistant equipment assemblies
Important Ordering Notes
- Product type: 150# Stainless Steel Welding Spud / Tank Flange.
- Designed for welded installation on compatible tanks and vessels.
- Available in AISI 304 or 316 stainless steel.
- Low lead certified to NSF/ANSI 61.
- Dimensions conform to ISO 49-1983 (E).
- Stainless steel construction provides corrosion resistance.
- Confirm nominal connection size, stainless steel grade, tank material, wall thickness, and welding requirements before ordering.
- Verify system pressure, operating temperature, media compatibility, and applicable fabrication requirements before installation.
- Verify potable-water and local-code requirements when used in drinking-water systems.
- Refer to both Product Documents for fitting and pipe dimensional information.
Product Documents
Frequently Asked Questions
What is a welding spud or tank flange used for?
A welding spud or tank flange provides a connection point that is welded directly to a tank, vessel, or compatible fabricated component.
What pressure class is this fitting?
This fitting is listed as a 150# stainless steel welding spud / tank flange.
What stainless steel grades are available?
The fitting family is available in AISI 304 or 316 stainless steel.
How is the fitting installed?
The fitting is designed to be welded directly to the compatible tank, vessel, or fabricated surface.
What dimensional standard applies?
The supplied product information states that the fitting conforms to ISO 49-1983 (E) dimensional requirements.
Is this fitting low lead certified?
Yes. The supplied product information lists the fitting as low lead certified to NSF/ANSI 61.
What is the difference between 304 and 316 stainless steel?
Both provide corrosion resistance, while 316 stainless steel is commonly selected for more aggressive chemical, marine, or chloride-exposed environments.
Can this fitting be used on a potable-water tank?
The fitting is listed as NSF/ANSI 61 low lead certified. The complete tank, welded assembly, and piping system should still be verified for applicable potable-water and local-code requirements.
Where can I find fitting dimensions?
Use the Merit Stainless Steel Standard Pattern Cast Fittings PDF in the Product Documents section above.
How can I confirm common pipe dimensions?
Use the Pipe Chart: Common Diameters & Wall Thicknesses PDF in the Product Documents section above.
Ask Willy: Product Selection & Support
Our GetPipe.com team can help review sizing, material, connection requirements, and product information before you order.
