Alpha Wide Range Restraint Coupling - 4"
SKU: 91531970908

Alpha Wide Range Restraint Coupling - 4"

Sale price$425.25 Regular price$472.50
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Alpha Wide Range Restraint Coupling - 4"Romac Industries, Inc. Alpha Wide Range Restraint Coupling is manufactured in the USA. The Alpha Coupling installs in about three minutes, and accommodates up to 8 degrees of deflection (4 degrees on each end). Use one piece, stab fit installation, covers IPS PVC through DI pipe diameters without having to change components, sizes 4" 16", compatible with ductile iron, cast iron (class A, B, C & D), PVC IPS size (Sch 40, Sch 80 and SDR 21), PVC C900 &

Romac Industries, Inc. Alpha™ Wide Range Restraint Coupling is manufactured in the USA.  The Alpha Coupling installs in about three minutes, and accommodates up to 8 degrees of deflection (4 degrees on each end).  Use one piece, stab-fit installation, covers IPS PVC through DI pipe diameters without having to change components, sizes 4" - 16", compatible with ductile iron, cast iron (class A, B, C & D), PVC IPS size (Sch 40, Sch 80 and SDR 21), PVC C900 & C909 & HDPE (size 4" - 12").  Working Pressure up to 350 psi.  

To order, determine the O.D. of the pipes to be coupled, and select coupling size which covers the pipe diameters of both pipe ends.  

Materials:

Castings - All cast components (end rings, center ring, and bolt guides) are ductile iron, meeting or exceeding the requirements of ASTM A 536, grade 65-45-12.

Grippers - Ductile (nodular) iron, meeting or exceeding ASTM A 536, Grade 65-45-12. Machine sharpened and heat treated. Xylan 1424 coated for superior corrosion resistance. 

Gaskets SBR compounded for water and sewer service per ASTM D2000, classified by UL to meet NSF61 or NBR compounded for water and sewer service per ASTM D2000, NSF61 Certified. Other compounds available upon request.

Draw Hooks - 304L stainless steel.

Ramp Runners - Reinforced Nylon.

Bolts and Nuts - 5/8-11 bolts with heavy hex nuts. E-coated nuts, 304 stainless steel. Fasteners provided with anti-galling protection.

Coatings - Center ring is Romacoat fusion bonded epoxy, NSF 61 Certified. End rings are Romabond polyester.

 

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: 91531970908

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MacWestie
San Leandro, US
★★★★★ 5
Great shelves!
Color: Grey, Size: 55 Inch, Style: 2 Pack
This shelf is lovely--simple and modern. My handyman said it was easy to install AND made a note to buy it for his own rental units because he said the internal supports were very sturdy. Fast delivery and exactly as described--and the price is nice, too.
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Reviewed in the United States on April 17, 2026
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Megan Moore
Massapequa, US
★★★★★ 5
Good size and quality
Easy installation, been up on the wall for several months now and they're exactly what we were looking for. Pretty sturdy, good quality. First order of these came broken but they replaced them no problem.
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Reviewed in the United States on May 31, 2026
M
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Mom of 4
Cuba, US
★★★★★ 5
Open kitchen concept came alive ❤️
Love these shelves and recommend to others. They are sturdy with the mounting bracket system and look great. It was easy to install with another set of hands. The material has the look I wanted and there were no missing parts!
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Reviewed in the United States on April 2, 2026
L
Verified Purchase
Lorinna
Battle Creek, US
★★★★★ 5
BEAUTIFUL QUALITY LOOK!
Color: Rustic Brown, Size: 48 Inch, Style: 2 Pack, Color: Rustic Brown, Size: 48 Inch, Style: 2 Pack
Absolutely Love These!! easy to Install They can Carry a Nice Load!! Super Durable!! Lock Pleasing to the eyes!!
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Reviewed in the United States on May 30, 2026
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Jose G. Montijo
West Palm Beach, US
★★★★★ 4
pakaged
When I got them the box had damage and was pleasantly surprised that the shelves weren’t damaged, they were package well. Good quality very light and a nice finish.
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Reviewed in the United States on May 13, 2026

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