SKU: 21189966447
dresser coupling

dresser coupling Dresser Style 138 Coupling | Cast/Ductile Iron 3 in - (3.74 - 4.02) / .188X5

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Description

dresser coupling Dresser Style 138 Coupling | Cast/Ductile Iron 3 in - (3.74 - 4.02) / .188X5Description Dresser Bolted Coupling Style 138 Coupling Cast & Ductile Iron Pipe Wide range bolted sleeve coupling for plain end cast iron and ductile iron pipe. One nominal size covers the full OD spread from legacy cast iron through modern DIP. Sizes 3 in 12 in 250 PSI Working Pressure Fusion Bonded Epoxy ID OD NSF 61 & 372 Certified AWWA C111 Bolting Overview The Dresser Style 138 is a wide range bolted sleeve coupling for joining plain end cast

Description
Dresser Bolted Coupling

Style 138 Coupling
Cast & Ductile Iron Pipe

Wide-range bolted sleeve coupling for plain-end cast iron and ductile iron pipe. One nominal size covers the full OD spread from legacy cast iron through modern DIP.

Sizes 3 in – 12 in
250 PSI Working Pressure
Fusion-Bonded Epoxy ID/OD
NSF 61 & 372 Certified
AWWA C111 Bolting
Overview

The Dresser Style 138 is a wide-range bolted sleeve coupling for joining plain-end cast iron (CIP) and ductile iron pipe (DIP) in nominal sizes 3 in through 12 in. Its key advantage is a single coupling per nominal size that covers the full OD range — whether the line in the ground is legacy cast iron or current-production ductile iron, one part number fits the joint.

Style 138 couplings provide flexible, leakproof connections that absorb vibration, accommodate pipe movement, and require no threading, beveling, or precise pipe alignment. Installation is wrench-only.

Key Features
Wide OD Coverage
One coupling per nominal size fits the full OD spread of cast iron and ductile iron pipe — from older CIP to current DIP production.
CIP & DIP Application
Engineered specifically for plain-end cast and ductile iron pipe in waterworks and utility service.
Tool-Only Installation
No threading, beveling, or pipe alignment required. A wrench is all that’s needed for a leakproof joint.
Flexible Joint
Absorbs vibration and accommodates minor angular deflection and pipe movement at the joint.
Materials of Construction
Followers
AISI C1012 or ASME SA36
Steel followers indicated by part number suffix
Middle Ring
ASTM A513 / A635 / SA675 Gr.60
Steel sleeve body
Bolts & Nuts
AWWA C111 / ANSI A21.11
Black E-coated steel as standard
Gasket
Grade 27 BUNA-S
Standard supply
Standard Coating
Fusion-Bonded Epoxy ID/OD
Factory-applied
Optional Coating
Dresser RED-D Shopcoat
Available on request
Sizes & Working Pressure
Nominal Size Outside Diameter Range (in) Working Pressure (PSI)
3 in 3.74 – 4.02 250
4 in 4.74 – 5.06 250
6 in 6.84 – 7.16 250
8 in 8.99 – 9.36 250
10 in 11.04 – 11.46 250
12 in 13.14 – 13.56 250
Consult Inside Sales For
Standard supply is Grade 27 BUNA-S gasket with fusion-bonded epoxy ID/OD coating. Contact our team for products requiring American Iron & Steel (AIS) certification, alternate gasket materials, or alternate coatings.
Ready to Order?
Confirm pipe OD and any special requirements before placing your order.
Shop Watermainsupply.com
281.664.8000
[email protected]
© Watermain Supply — A division of E4 Industrial LLC
Submittal

Style 38/138/40 CIP/DIP Submittal

Catalog

Water Pipe Joining Products Catalog

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21189966447

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Amazon Customer
Phoenix, US
★★★★★ 5
Pretty pink, quality looks fine for a price.
Color: Blossom Pink
Like it and I love the color, please insert an instruction how to use it, I had find out in AI.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
M
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Melisa Clay
Charlottesville, US
★★★★★ 5
Super nice
Color: Mottled Green
I love it, the color is perfect match and the material is good too
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Reviewed in the United States on June 8, 2026
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Vanessa Varnok
Fort Morgan, US
★★★★★ 5
Más top
Color: Wavy White, Color: Wavy White
Me encantó este kit completo de matcha. Viene con todo lo necesario para preparar el té de forma tradicional y sencilla, incluso si eres principiante. La calidad de los accesorios se siente muy buena y el diseño es hermoso, perfecto 10/10
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Reviewed in the United States on June 9, 2026
A
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Amazon Customer
Alexandria, US
★★★★★ 5
Cute matcha set, quality for price
Color: Pink, Color: Pink
I was looking for an affordable, quick replacement for my previous matcha set and found this item. For the price point, this is great quality and is such a cute addition to my kitchen. I also like that this includes all the essentials for making a matcha. The chasen does seem to be on the more fragile side though so I'd just be careful and properly take care of it such as blooming it in hot water before any usage and whisk with a very lighthand.
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Reviewed in the United States on May 26, 2026
J
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Jenna
Massapequa, US
★★★★★ 5
Cute!
Color: Green
Super cute and fun to use, easy to clean, appears to be very well-made. Excellent, especially for such a low price. I will say the only complaint I have is that the spout design could use some work; the end of it doesn't come out far enough so it dribbles a bit when you try to pour. Also, and maybe this is to be expected due to the use of natural materials, but there are a couple of small split pieces/splinters on the chasen (whisk) I had to trim. Otherwise perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026

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