Style 62 reducing coupling
Style 62 reducing coupling

Dresser Style 62 Reducing Coupling

Nominal Size: 3 in
Outside Diameter | Cast Iron End X Steel End: (3.74 - 4.02) in X 3.5 in
Middle Ring Length: 5 in

Product variant with selected options does not exist!
$534.78
SKU: 0062-9502-142
Weight : 16.0 lb
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Description
Dresser Reducing & Transition Coupling

Style 62 Reducing Coupling
Cast Iron / Ductile Iron to Steel

Bolted mechanical coupling for joining pipes of different ODs — size-on-size CI/DIP to steel, actual pipe-size reductions, or pipe-class changes. Eliminates the need for welded reducers, threaded fittings, or flange-and-spool assemblies.

Sizes 3 in – 24 in (Type I)
Type II Custom Built
Working Pressure 150 PSI
NSF 61 / 372 Certified
Built from Style 38 Parts
Need electrical isolation across the transition? If cathodic protection is required between the cast-iron and steel sides — or whenever dissimilar metals are joined — the Dresser Style 39-62 Insulating Reducing Coupling adds full electrical isolation in the same physical footprint.
View Style 39-62 →
Overview

The Dresser Style 62 Reducing & Transition Coupling is purpose-built for three distinct field conditions: (1) joining size-on-size steel and cast-iron pipe of the same nominal diameter, (2) making actual reductions in pipe size, and (3) changing the class of pipe within a distribution system. Where standard couplings cannot span the OD difference between the two pipes, the Style 62 fills the gap without requiring flanges, threaded fittings, or welded reducers.

Two configurations cover the full range of transition needs. Type I handles standard size-on-size cast iron / ductile iron to steel connections using Style 38 parts with the middle ring swaged on one end. Type II is custom-built to order for larger or special reductions outside the Type I range — fabricated from Style 38 parts with anchor rings welded to the middle ring and supplied with two independent sets of bolts for separate compression of each gasket.

NSF 61 & 372 Certified
Style 62 Type I couplings are NSF 61 and NSF 372 certified for potable water service. Only products bearing the NSF mark on the product, packaging, or documentation shipped with the product are certified.
Key Features
Three Field Conditions Solved
Size-on-size CI/DIP to steel transitions, actual pipe-size reductions, and pipe-class changes — all handled by one product family with proven Style 38 sealing components.
Type I (Standard)
For modest OD differences, such as standard cast or ductile iron pipe to steel of the same nominal size. Middle ring is swaged on one end. Standard sizes 3 in through 24 in.
Type II (Custom-Built)
For larger and special reductions outside the standard Type I range. Anchor rings welded to the middle ring; two sets of bolts supplied. Built to order — consult factory with your specific pipe ODs.
Built from Style 38 Parts
Same followers, gaskets, and bolt design as the proven Dresser Style 38 coupling — reliable sealing performance carried into a transition application.
Multiple CI/DIP OD Ranges
OD ranges cover the variability across cast-iron pipe classes (A, B, C, D) at each nominal size. Verify your actual CI/DIP OD before ordering — see Pipe OD Chart below.
Fusion-Bonded Epoxy Coating
Factory-applied for corrosion resistance in buried and exposed service. Interior and exterior coverage protects steel in water and wastewater systems.
Tool-Only Installation
No threading, beveling, or precise pipe alignment required. Installs with standard hand tools directly in the field or trench.
Insulating Variant Available
For applications requiring cathodic protection between dissimilar metals, specify the Style 39-62 Insulating Reducing Coupling instead. Same physical footprint, adds full electrical isolation.
Materials of Construction
Followers
AISI C1012 or ASME SA36
Standard Style 38 follower construction
Middle Ring
ASTM A513 / A635 / SA675 Gr.60
Swaged (Type I) or with anchor rings (Type II)
Bolts & Nuts
AWWA C111 / ANSI A21.11
Black E-coat standard; two sets for Type II
Gaskets
Grade 27 BUNA-S (Standard)
Potable water safe; other compounds available — consult factory
Coating
Fusion-Bonded Epoxy
Interior & exterior; NSF 61 / 372 certified constituents
Compatible Pipe
Cast Iron / Ductile Iron × Steel
Other pipe combinations available — consult factory
Engineering References & Downloads
Style 62 Submittal PDF
Official Dresser product brochure covering Style 62 Reducing & Transition Couplings. Includes design rationale, Type I and Type II configurations, materials of construction, dimensional diagram, complete spec table, and reference Dresser part numbers. For engineering review and project files.
Download Submittal
Pipe OD Reference Chart
Outside-diameter cross-reference for steel, PVC, polyethylene, ductile iron, cast iron (all classes), and asbestos cement pipe — sizes 1/2 in to 60 in. Critical for confirming both your cast-iron/DIP OD AND your steel pipe OD before ordering a transition coupling.
Download Pipe Chart
Type I — Size-on-Size Specifications (Cast/Ductile Iron × Steel)
Nom. Size OD Cast Iron (in) OD Steel (in) Reference Part # Middle Ring (Thick × Len, in) Bolts (No. × Diam × Len, in) Overall Dim. H × L (in) Working PSI Ship Wt (lbs)
3 in 3.74 – 4.02 3.500 0062-9502-142 1.88 × 5 4 — 5/8 × 8-1/4 7-3/4 × 9-1/2 150 16
4 in 4.74 – 5.06 4.500 0062-9504-142 .299 × 7 4 — 5/8 × 10-3/4 9 × 11-7/8 150 25
6 in 6.90 – 7.16 6.000 0062-9505-142 1/4 × 7 6 — 5/8 × 10-3/4 9 × 11-7/8 150 27
6 in 6.90 – 7.16 6.625 0062-9506-142 1/4 × 7 6 — 5/8 × 10-3/4 11-3/4 × 11-7/8 150 27
8 in 9.05 – 9.36 8.625 0062-0508-142 1/4 × 7 6 — 5/8 × 10-3/4 13-3/4 × 11-7/8 150 37
10 in 11.10 – 11.46 10.750 0062-0509-142 3/8 × 7 8 — 5/8 × 10-3/4 15-3/4 × 11-7/8 150 58
12 in 13.20 – 13.56 12.750 0062-0510-142 3/8 × 7 8 — 5/8 × 10-3/4 17-3/4 × 11-7/8 150 83
14 in 15.30 14.000 0062-8009-550 3/8 × 7 8 — 5/8 × 10-3/4 19-3/4 × 11-7/8 150 85
16 in 17.40 16.000 0062-8050-011 3/8 × 7 10 — 5/8 × 10-3/4 21-3/4 × 11-7/8 150 101
18 in 19.50 18.000 0062-8009-560 3/8 × 7 10 — 5/8 × 10-3/4 23-3/4 × 11-7/8 150 117
20 in 21.60 20.000 0062-8051-011 3/8 × 7 12 — 5/8 × 10-3/4 25-3/4 × 11-7/8 150 130
24 in 25.80 24.000 0062-8052-011 3/8 × 7 14 — 5/8 × 10-3/4 29-3/4 × 11-7/8 150 162

Reference part numbers shown are for standard Grade 27 BUNA-S gaskets. Multiple OD options at the 6 in size correspond to different steel pipe OD standards (6.000 vs 6.625). Consult factory for other gasket grades or pipe combinations not listed.

Type II — Custom-Built Transition Couplings
Type II couplings are custom-fabricated for larger or unusual reductions outside the Type I standard range. They use Style 38 parts with anchor rings welded to a specially-fabricated reducing middle ring, and ship with two independent sets of bolts so each gasket can be compressed separately. Use Type II when joining pipes with significantly different ODs (e.g., 24 in CI to 20 in steel, mismatched pipe classes, or non-standard combinations). Consult our team with both pipe ODs, pressure requirements, and gasket compound preferences for a custom quote.
When to Specify Style 62 vs Style 39-62
Specify Style 62 when joining cast-iron / ductile iron pipe to steel pipe where electrical isolation is NOT required (no cathodic protection on the line, no dissimilar-metal corrosion concern). If the joint must be electrically isolated for CP or galvanic protection, use the Dresser Style 39-62 Insulating Reducing Coupling instead — same dimensional footprint with full electrical isolation added.
Consult Inside Sales For
Cast-iron OD class confirmation (A, B, C, or D), Type II custom-built transition couplings, sizes above 24 in, alternative gasket compounds for non-standard service media (petroleum, high-temp, chemical), American Iron & Steel (AIS) or BABAA certification, or all-stainless construction. We will confirm the correct CI/DIP OD and configuration for your specific application.

 

Ready to Order?
Confirm cast-iron/DIP pipe OD class, steel pipe OD, and any cathodic protection requirements before placing your order.
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Spec Sheet

Style 62 Reducing Coupling Spec Sheet

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