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HeavyWeight Couplings

HeavyWeight Couplings

For heavy-duty installations requiring more than a standard No Hub coupling

  • More effective joint movement restraint - Stainless steel strap bands are 12.5% thicker than on traditional no hub couplings providing a positive seal when properly torqued to 80 in/lbs
  • Stronger, more uniform scaling capacity - Axially slotted clamp bands tighten independently to accommodate most any variances in outside diameters of cast iron pipe and fittings being joined
  • Greater surface load bearing - Wider 304 Series stainless steel shield accommodates additional sealing clamps to provide for greater load bearing contact
    1-1/2" - 4" sizes:   Four stainless steel bands
    5" - 15" sizes:       Six stainless steel bands
  • Higher resistance to shear forces - Rugged construction, excellent sealing properties and the arrangement of intermittent corrugations in the outer stainless steel band provide resistance to shear forces and help alignment while maintaining flexibility
  • Corrosion resistant - 304 Series stainless steel combined with significant deflection factor makes this coupling highly dependable above and below ground
  • Safe and easy to install - Flanged gasket helps maintain alignment during installation and tapered ends on shield reduce friction and prevent injury from sharp edges
  • Versatile - Internal profile of elastomeric sleeve against intermittent corrugation suits specific performance application of non-potable waste systems
HeavyWeight Couplings
Test Gasket Physical Tests ASTM
Tensile Strength 1500 PSI min. D412
Elongation 250% D412
Durometer (Shore A) 70±5 D2240
Accelerated Aging 15% max. tensile and 20% max. elongation deterioration.10 pts. max. increase in hardness. All determinations after oven aging for 96 hrs. at 158°F. D573
Compression Set 15% max. after 22 hrs. at 158°F D395
Oil Immersion 80% max. volume change after immersion in IRM oil #3 for 70 hrs. at 212°F. D471
Ozone Cracking No visible cracking at 2X magnification of the gasket after 100 hrs. exposure in 1.5 PPM ozone concentration at 100°F testing and inspection to be on gasket which is loop-mounted to give approx. 20% elongation of outer surface.  
Tear Resistance Die C 150 lbs. max/inch of thickness D624
Water Absorption 20% max. by weight after 7 days at 158°F D471

pdf HeavyWeight No Hub Coupling - Installation Guide

Specifications:

  • Multiple bands attached to heavy duty, corrugated 304 Series stainless steel shield over a molded one-piece elastomer sealing sleeve
  • Sealing rings on flanged neoprene rubber gasket meet or exceed the requirements of ASTM C 564
  • Axially slotted heavy duty worm drive clamps tightened to 80 in/lbs of torque
  • FM 1680 compliant
Gasket Dimensions
B W
1-1/2" 3.0
2" 3.0
3" 3.0
4" 3.0
5" 4.0
6" 4.0
8" 4.0
10" 4.0
12" 5.5
15" 5.5
HeavyWeight Couplings
Product Name Nominal Pipe Size Width Inches
C 150 HW 1-1/2" 3.000
C 200 HW 2" 3.000
C 215 HW 2" x 1-1/2" 3.000
C 300 HW 3" 3.000
C 320 HW 3" x 2" 3.000
C 400 HW 4" 3.000
C 430 HW 4" x 3" 3.000
C 500 HW 5" 4.000
C 600 HW 6" 4.000
C 800 HW 8" 4.000
C 1000 HW 10" 4.000
C 1200 HW 12" 5.500"
C 1500 HW 15" 5.500"
MBDC
ASTM
ASTM C1540-11
ASTM C564-11
ASTM A240/A240M-06
UPC
7816

 

Mission Rubber Company LLC
1660 Leeson Lane, Corona, CA 92879
Mailing Address: Mission Rubber Company LLC, P.O. Box 2349, Corona, CA 92878-2349
Phone: (800) 854-9991     Fax: (800) 637-4601
Intl. Phone: (951) 736-1343      Intl. Fax: (951) 736-0481