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Description
dresser coupling Dresser Style 38 CouplingDescription Dresser Bolted Coupling Style 38 Coupling Cast & Ductile Iron Pipe Bolted sleeve coupling for plain end cast iron and ductile iron pipe in nominal sizes 14 in through 48 in. Field proven joint flexibility, leakproof seal, and tool only installation. Sizes 14 in 48 in NSF 61 & 372 Approved Fusion Bonded Epoxy ID OD Grade 27 BUNA S Gasket AWWA C111 Bolting Looking for 3 in 12 in sizes? Smaller cast and ductile iron pipe sizes are supplied as
Description
Dresser Bolted Coupling
Style 38 Coupling
Cast & Ductile Iron Pipe
Bolted sleeve coupling for plain-end cast iron and ductile iron pipe in nominal sizes 14 in through 48 in. Field-proven joint flexibility, leakproof seal, and tool-only installation.
Sizes 14 in – 48 in
NSF 61 & 372 Approved
Fusion-Bonded Epoxy ID/OD
Grade 27 BUNA-S Gasket
AWWA C111 Bolting
Looking for 3 in – 12 in sizes?
Smaller cast and ductile iron pipe sizes are supplied as the Style 138 wide-range coupling, which fits the full OD spread per nominal size on a single part number.
View Style 138 →
Overview
The Dresser Style 38 is a bolted sleeve coupling for joining plain-end cast iron (CIP) and ductile iron pipe (DIP) in nominal sizes 14 in and larger. At these diameters the OD variation between legacy cast iron and current ductile iron is small enough that each size is supplied as a single dedicated coupling rather than the wide-range Style 138 design used for smaller diameters.
Style 38 couplings provide flexible, leakproof connections that absorb vibration and accommodate minor pipe movement and angular deflection. Installation requires only a wrench — no threading, beveling, or precise alignment.
Key Features
14 in & Larger CIP/DIP
Purpose-built for large-diameter cast iron and ductile iron mains in waterworks and utility distribution service.
NSF 61 & 372 Approved
Certified for potable water service with Grade 27 BUNA-S gasket and fusion-bonded epoxy ID/OD coating as standard.
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
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 (in) | Working Pressure (PSI) |
|---|---|---|
| 14 in | 15.30 | 575 |
| 16 in | 17.40 – 17.80 | 509 |
| 18 in | 19.50 – 19.92 | 450 |
| 20 in | 21.60 – 22.06 | 411 |
| 24 in | 25.80 | 349 |
| 30 in | 32.00 | 342 |
| 36 in | 38.30 | 287 |
| 42 in | 44.50 | 248 |
| 48 in | 50.80 | 218 |
Consult Inside Sales For
Standard supply is Grade 27 BUNA-S gasket with fusion-bonded epoxy ID/OD coating. Contact our team for sizes over 48 in or not listed, American Iron & Steel (AIS) or BABAA certification, AWWA C213 coating, all-stainless construction, or alternate gasket materials.
Ready to Order?
Confirm pipe OD, gasket grade, and any special requirements before placing your order.
Submittal
Style 38/138/40 CIP/DIP Submittal
Catalog
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 54 reviews
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Product Reviews
★★★★★ 3
Satisfactory
Color: Multicolor-4pack-a1, Size: X-Large
If your wanting an easy on high waisted underwear these work.
They are honestly strange material, a mix of three different things- not bad but different.
Not seamless, might ride up, slightly on the thicker side. Will last a while. Comfortable enough but not amazing.
Got for after a surgery and needed something different- these worked but would I get on a normal day probably not.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Super soft and comfortable!
I haven't bought new underwear in forever. I used to wear thongs, but now find them incredibly uncomfortable. The last few times I've tried to buy new underwear, the sizing was either way off (I'm a medium, but gave up after having to return them for a large and then extra large) or the quality was horrible (two brands stretch waaaay out and they can fall down while wearing them (I have larger ass-ets, so they shouldn't start to slide down during use). I tried these after buying some bamboo pyjamas and I love them! They are incredibly soft, comfortable, and stretchy. I can use them all day, and they work well, whether I'm lounging on the couch or wearing them under my spandex shorts at the gym, they don't ride up or slide down. They are both comfortable and look sexy, while providing support in all the right places. I haven't had them too long, so I can't speak on the durability, but they appear to be of good quality and I plan to order more, this time without the band.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 13, 2025
★★★★★ 5
Well made, light fabric. Waist doesn't roll.
These bamboo underwear really do keep you cool.
They fit true to size, and wear easily. the wide elastic waist band doesn't roll on me.
They are comfortable to wear, washed and dried easily.
The material has some stretch to it, but not a lot.
Well made, no stray strings. Perfect fit for me.
Just what I was looking for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 5
Good quality, smooth feel
I got these briefs so recently that have washed just one pair so far. First off, these are very comfortable, the material is soft & bordering silky, good quality sewing. Wash well and minimal if any shrinkage. They do come a bit wrinkled from the dryer but hey, these are underwear and will go on smoothly. If it were a t-shirt, I would look sloppy. I feel the sizing is accurate. No rolling and these don't announce themselves under clothing. Planning on getting more of these boxers and replacing my old panties.
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Reviewed in the United States on January 31, 2026
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 29, 2025
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