Dresser Style 40 Long Bolted Coupling
Style 40 long bolted coupling
Dresser Style 40 Long Bolted Coupling
Style 40 long bolted coupling

Dresser Style 40 Long Bolted Coupling

Nominal Size - OD: 0.5 in - 0.840 in OD
Middle Ring | Thickness X Length: 0.156 in X 12 in
Gasket Type: (27)-Buna S

Product variant with selected options does not exist!
$167.35
SKU: 0040-0001-003
Weight : 4.1 lb
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Description
Dresser Long Body Coupling

Style 40 Long Body Coupling
Steel Pipe

Long body bolted sleeve coupling for plain-end steel pipe in nominal sizes ½ in through 24 in. Bridges wider-than-normal pipe gaps with a single coupling — no spool pieces, no extra fittings.

Sizes ½ in – 24 in
Working Pressure to 1500 PSI
5 Gasket Compounds Available
AWWA C111 / ANSI A21.11 Bolting
3/8 in Expansion/Contraction
Standard pipe gap, no large separation? For typical butt-to-butt steel pipe joining where the pipe ends are close together, the shorter-body Dresser Style 38 is the lower-cost choice and delivers the same expansion/contraction performance.
View Style 38 →
Overview

The Dresser Style 40 Long Body Coupling is an engineered mechanical sleeve coupling designed for plain-end steel pipe where pipe ends are widely separated — a common field condition during repairs, replacements, and installations where a standard-body coupling cannot span the gap. Structurally similar to the Style 38, the Style 40 uses a longer middle ring with a larger belly diameter to bridge gaps that would otherwise require a spool piece, additional fittings, or pipe cutting on both sides of the joint.

Despite the added length, the Style 40 delivers the same joint performance as the Style 38 — absorbing up to 3/8 in of expansion and contraction per joint — making it suitable for service subject to thermal cycling, ground settlement, or vibration. Installation requires only a wrench. No threading, beveling, or precise pipe alignment is needed.

Key Features
Bridges Wide Pipe Gaps
Extended middle ring with larger belly diameter spans wider-than-normal pipe separations without spool pieces or additional fittings.
3/8 in Joint Movement
Absorbs up to 3/8 in of expansion and contraction per joint — identical performance to Style 38 despite the longer body.
Working Pressure to 1500 PSI
High working pressure ratings across smaller diameters make Style 40 suitable for high-pressure steel pipe service. See spec table for size-specific ratings.
Tool-Only Installation
No threading, beveling, or pipe alignment required. Installs with standard hand tools directly in the field or ditch.
Single & 2-Piece Followers
Single-piece follower design used for sizes 3 in through 12 in. 2-piece followers on larger sizes for easier field handling.
Sizes ½ in – 24 in
Standard range covers full steel pipe spectrum from small-bore to large-diameter mains. Special and larger sizes available on request.
Materials of Construction
Followers
AISI C1012 or ASME SA36
Ductile or Malleable Iron for ½ in – 1½ in
Middle Ring
ASTM A513 / A635 / SA675 Gr.60
Long body steel sleeve
Bolts & Nuts
AWWA C111 / ANSI A21.11
E-coated steel as standard
Gasket
5 Compounds Available
See Gasket Options below
Coating (½ in – 8 in)
Fusion-Bonded Epoxy
Factory-applied
Coating (10 in – 24 in)
Grey Epoxy ID/OD
RED-D Shopcoat optional
Gasket Options

The Style 40 is supplied with one of five gasket compounds depending on service media, temperature, and durability requirements. Select the gasket matching your application from the product variant options at checkout. Armored variants use the AL-CLAD pinned-armor design for added cut, blowout, and extrusion resistance.

(27) Buna-S — Standard
Styrene-butadiene rubber. General water, wastewater, and air service. Most common selection for waterworks applications.
(27) Buna-S Armored
Grade 27 compound with AL-CLAD pinned-armor reinforcement. Added blowout and extrusion resistance for higher-pressure or more demanding water service.
(42) Buna-N
Nitrile rubber. Petroleum products, oils, hydrocarbons, and fuel service. Standard choice when line content is oil-based.
(42) Buna-N Armored
Grade 42 nitrile compound with AL-CLAD pinned-armor reinforcement. For high-pressure oil and hydrocarbon service.
(365) Graphite Fiber — High Temp
Graphite fiber gasket for high-temperature service where standard rubber compounds would fail. Specify when line temperature exceeds standard rubber limits.

Not every gasket compound is stocked in every size. Available gasket selections per size are shown in the variant picker above. For sizes or compounds not listed, contact our team.

Engineering References & Downloads
Style 40 Submittal PDF
Official Dresser product submittal with full spec tables, materials of construction, and overall dimensions. For engineering review and project files.
Download Submittal
Pipe OD Reference Chart
Outside-diameter cross-reference for steel, PVC, polyethylene, ductile iron, cast iron, and asbestos cement pipe — sizes ½ in to 60 in. Verify OD before specifying coupling size.
Download Pipe Chart
Sizes & Specifications — Steel Pipe
Nominal Size Pipe OD (in) Middle Ring (Thick × Len, in) Bolts (No. × Diam × Len, in) Overall Diam. (in) Overall Length (in) Working PSI Ship Wt (lbs)
Steel Pipe Sizes ½ in – 8 in
½ in .840 .156 × 12 2 — ½ × 14 3½ 15-5/8 1500 4½
¾ in 1.050 .156 × 12 2 — ½ × 14 3-13/16 15-5/8 1500 5
1 in 1.315 .148 × 12 2 — ½ × 14 4-1/16 15-5/8 1500 6
1¼ in 1.660 .154 × 12 2 — ½ × 14 4-7/16 15-5/8 1500 6½
1½ in 1.900 .165 × 12 2 — ½ × 14 4-3/4 15-5/8 1500 7½
2 in 2.375 .156 × 12 3 — ½ × 15 6¼ 17 1500 15
2 in 2.375 .156 × 24 3 — ½ × 28 6¼ 29 1500 33
2½ in 2.875 .180 × 12 3 — 5/8 × 15 7 17 1500 12
2½ in 2.875 .180 × 24 3 — 5/8 × 28 7 29 1500 20½
3 in 3.500 .156 × 12 4 — 5/8 × 12-3/4 8 15 1500 23
3 in 3.500 .156 × 24 4 — 5/8 × 28 8 29 1500 40
3½ in 4.000 .188 × 12 4 — 5/8 × 12-3/4 8-5/8 15 1175 25
4 in 4.500 .188 × 12 4 — 5/8 × 12-3/4 9 15 1063 28
4 in 4.500 .188 × 24 4 — 5/8 × 28 9 29 1063 44
4½ in 5.000 .229 × 12 4 — 5/8 × 12-3/4 9 15 930 30
5 in 5.500 .280 × 16 4 — 5/8 × 19½ 9 21 1162 41
5 in 5.563 .280 × 16 4 — 5/8 × 19½ 10-3/8 21 1162 51
5-5/8 in 6.000 .280 × 16 6 — 5/8 × 19½ 10-3/8 21 935 66
6 in 6.625 ¼ × 16 6 — 5/8 × 19½ 11¼ 21 968 54
6 in 6.625 ¼ × 24 6 — 5/8 × 28 11¼ 29 968 60
6-5/8 in 7.000 ¼ × 16 6 — 5/8 × 19½ 11-3/4 21 923 54
7-5/8 in 8.000 ¼ × 16 6 — 5/8 × 19½ 13¼ 21 822 60
8 in 8.625 ¼ × 16 6 — 5/8 × 19½ 13¼ 21 769 63
8 in 8.625 ¼ × 24 6 — 5/8 × 28 13-7/8 29 769 85
Steel Pipe Sizes 10 in – 24 in
9-5/8 in 10.000 ¼ × 16 8 — 5/8 × 19½ 13-7/8 21 674 75
10 in 10.750 ¼ × 24 8 — 5/8 × 28 14-5/8 29 632 81
10 in 10.750 ¼ × 16 8 — 5/8 × 19½ 14-5/8 21 632 109
11-5/8 in 12.000 ¼ × 16 8 — 5/8 × 19½ 16 21 571 87
12 in 12.750 ¼ × 16 8 — 5/8 × 19½ 16-3/4 21-3/4 520 119
12 in 12.750 3/8 × 24 8 — 5/8 × 28 17-1/8 29-3/4 796 165
14 in 14.000 ¼ × 16 8 — 5/8 × 19½ 18 21-3/4 732 130
16 in 16.000 ¼ × 16 10 — 5/8 × 19½ 21 21-3/4 647 148
16 in 16.000 3/8 × 24 10 — 5/8 × 28 21 29-3/4 647 200
18 in 18.000 ¼ × 16 10 — 5/8 × 19½ 22 21-3/4 581 175
18 in 18.000 3/8 × 24 10 — 5/8 × 28 23 29-3/4 581 235
20 in 20.000 ¼ × 16 12 — 5/8 × 19½ 24 21-3/4 526 201
20 in 20.000 3/8 × 24 12 — 5/8 × 28 25 29-3/4 526 269
22 in 22.000 ¼ × 16 14 — 5/8 × 19½ 26 22-3/4 481 224
22 in 22.000 3/8 × 24 14 — 5/8 × 28 27 30-3/4 481 299
24 in 24.000 ¼ × 16 14 — 5/8 × 19½ 28 22-3/4 443 240
24 in 24.000 3/8 × 24 14 — 5/8 × 28 29 30-3/4 443 325

Working pressure ratings based on Barlow’s formula using a working stress equal to one-half the minimum yield of the middle ring material. Overall length “L” taken with fasteners drawn up finger tight. Single-piece follower design used for couplings 3 in through 12 in. Consult factory for alternative gaskets and part numbers.

⚠ Seal Only — Pipe Joint Must Be Anchored
The Style 40 provides a pressure seal only. When pipe pullout could occur, the pipe joint must be independently anchored or restrained. Failure to anchor the joint could result in escaping line content and cause property damage, serious injury, or death. Confirm restraint requirements before installation.
Consult Inside Sales For
Standard supply is the gasket you select from product variant options, with Fusion-Bonded Epoxy coating (sizes ½ in – 8 in) or Grey Epoxy ID/OD coating (sizes 10 in – 24 in). Contact our team for larger sizes, RED-D Shopcoat finish, American Iron & Steel (AIS) or BABAA certification, all-stainless construction, special-length middle rings, or gasket compounds not shown in variant options.

 

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Submittal

Style 40 Submittal

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