Service Metal
150# Galvanized Malleable Couplings
- SKU:
- SGCPL
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
150# Galvanized Malleable Couplings
150# Galvanized Malleable Iron Banded Couplings are designed to connect two male-threaded pipe sections in a straight run while providing a reinforced banded body for added strength at the joint.
Manufactured from durable malleable iron with a hot-dip galvanized finish, these Class 150 couplings provide dependable threaded connections and added corrosion resistance for industrial, commercial, plumbing, mechanical, water, and outdoor piping applications.
Product Highlights
- Straight threaded coupling for joining two pipe sections
- Female NPT threaded connections on both ends
- Reinforced banded body design
- Designed to help provide added joint strength and durability
- Hot-dip galvanized finish for corrosion resistance
- Durable malleable iron construction
- Class 150 fitting
- Malleable castings conform to ASTM A197
- Hot-dipped galvanized fittings conform to ASTM A153
- Malleable fitting dimensions conform to ASME B16.3
- NPT threads conform to ASME B1.20.1
- Class 150 fittings are UL Listed and FM Approved at 300 PSI
- Galvanized fittings meet ANSI/NSF 61-4 Annex G and CA AB1953 (<0.25% lead)
- Manufactured in an ISO-certified facility
- Country of origin: Thailand & China
Technical Specifications
| Product Type | Banded Coupling |
|---|---|
| Material | Malleable Iron |
| Finish | Hot-Dip Galvanized |
| Pressure Class | 150# |
| Connection Type | Female NPT x Female NPT |
| Configuration | Straight Coupling |
| Body Style | Banded / Reinforced |
| Primary Function | Join Two Threaded Pipe Sections |
| Casting Standard | ASTM A197 |
| Galvanizing Standard | ASTM A153 |
| Dimensional Standard | ASME B16.3 |
| Thread Standard | ASME B1.20.1 |
| Listings / Approvals | UL Listed & FM Approved at 300 PSI |
| Lead / Potable Water Compliance | ANSI/NSF 61-4 Annex G and CA AB1953 (<0.25% lead) |
| Manufacturing | ISO-Certified Facility |
| Country of Origin | Thailand & China |
Construction & Applications
Malleable Iron Construction
Manufactured from malleable iron castings conforming to ASTM A197 for dependable strength and durability in threaded piping systems.
Reinforced Banded Design
The coupling body incorporates raised reinforcing bands that provide additional material around the fitting body for a robust threaded connection.
Hot-Dip Galvanized Finish
The galvanized coating conforms to ASTM A153 and provides added protection against rust and corrosion in moisture-prone or outdoor environments.
Why Use a Banded Coupling?
Straight Pipe Connection
A banded coupling provides a simple way to connect two male-threaded pipe ends of the same nominal size while maintaining a straight piping run.
Reinforced Body
The banded exterior provides additional reinforcement around the coupling body, making this style well suited to demanding threaded piping installations.
Typical Applications
Commercial & Mechanical Piping
- Commercial plumbing systems
- Mechanical piping
- Water distribution
- General utility piping
- Threaded pipe extensions
Galvanized Applications
- Outdoor piping
- Moist environments
- Water-service applications
- Industrial installations
- General galvanized piping systems

Ask Willy: Need Pipe Size Help?
Use our common pipe diameters and wall thickness chart to confirm sizing before ordering galvanized malleable iron fittings. You can also review the coupling specification sheet and Certificate of Conformance below.
Standards & Approvals
ASTM Standards
Malleable iron castings conform to ASTM A197, while hot-dipped galvanized fittings conform to ASTM A153.
ASME Standards
Malleable fitting dimensions conform to ASME B16.3, while NPT threads conform to ASME B1.20.1.
UL, FM & Lead Compliance
Class 150 fittings are UL Listed and FM Approved at 300 PSI. Galvanized fittings meet ANSI/NSF 61-4 Annex G and CA AB1953 requirements listed in the supplied product information.
Related Malleable Iron Standards
- Malleable bushings, plugs, and locknuts conform to ASME B16.14.
- Malleable unions conform to ASME B16.39.
- Class 300 fittings are UL Listed according to the supplied product information.
- NPT threads on applicable fittings conform to ASME B1.20.1.
Need More Galvanized Malleable Iron Fittings?
Shop our complete selection of 150# galvanized malleable iron fittings, including banded couplings, elbows, tees, bushings, unions, caps, plugs, and other threaded fittings.
Frequently Asked Questions
What is a banded coupling used for?
A banded coupling is used to connect two male-threaded pipe sections of the same nominal size in a straight piping run.
What does “banded” mean on a malleable iron coupling?
Banded refers to the reinforced exterior body design, which incorporates raised bands around the fitting.
What type of connections does this coupling use?
The coupling uses female NPT threaded connections on both ends.
Can a coupling be used to change pipe direction?
No. A standard coupling joins two pipe sections in a straight line. Use an elbow when a directional change is required.
How is a coupling different from a union?
A coupling creates a conventional threaded connection between pipe sections. A union is specifically designed to be separated at the union body for easier maintenance or equipment removal.
Why choose a galvanized coupling?
The hot-dip galvanized finish provides additional protection against rust and corrosion in applications exposed to moisture or outdoor conditions.
What standard applies to the galvanized coating?
The supplied product information states that hot-dipped galvanized fittings conform to ASTM A153.
What thread standard applies?
NPT threads conform to ASME B1.20.1.
Is this fitting UL Listed and FM Approved?
Yes. The supplied product information states that Class 150 fittings are UL Listed and FM Approved at 300 PSI.
Does the supplied information include lead-compliance requirements?
Yes. It states that galvanized fittings meet ANSI/NSF 61-4 Annex G and CA AB1953 with less than 0.25% lead.
Important Ordering & Installation Notes
- Confirm the required nominal pipe size before ordering.
- This coupling is intended to connect two compatible male NPT pipe ends in a straight run.
- Both threaded openings are female NPT.
- NPT threads conform to ASME B1.20.1.
- Hot-dipped galvanized fittings conform to ASTM A153 according to the supplied product information.
- Use compatible galvanized pipe, fittings, thread sealant, and accepted threaded installation practices.
- Avoid damaging the galvanized coating during handling and installation.
- Verify system pressure, service, potable-water, code, and approval requirements before installation.
- Refer to the specification sheet and Certificate of Conformance for additional product information.