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Help CenterUL/ FM Ductile Iron Grooved Fittings Light Duty Rigid Coupling
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Specifications
UL/FM ductile iron grooved fittings light duty rigid coupling1.UL/FM approved
2.for fire system
3ductile iron grooved type
UL/FM ductile iron grooved fittings light duty rigid coupling
- Grooved fitting
- FM&UL approved
- Material: ductile cast-iron ASTM-A536
- Surface can be coated with epoxy powder, hot dip zinc or ordinary paint
- Flexible and rigid
- Joint reliability
- Isolates noise and vibration
- Convenient joint
- Applications:
- Fire protection
- Power plant: heating, ventilation and air conditioning
- Industrial plant: water treatment, plumbing and mining
The grooved products line incorporate a variety of grooved couplings & fittings ... thanks to outstanding quality, they can be used for all your HVAC and fire protection applications.
• quick assembly
• simple, easy, fast installation
• saves both time & money
• high flexibility (flexible couplings)
• vibration & noise reduction
• no leakage
Standard finish : color red - RAL3000 (powdercoated)
Optional finish :
- Hot Dip Galvanized
- Other RAL colors
- Unpainted (black steel)
In-house design and engineering! Moldings, Castings, Gaskets, Machining, Powdercoating, etc.
Items exceeding UL Standards :
- 300 / 400 / 500 psi
- suitable for EN10255 & Sch40 pipes
ASTM A-536 - Standard specification for ductile iron castings grade 64-45-12
Tensile Strength:Min. psi - 6,5000 (Mpa-448)
Yield Strength:Min. psi - 45,000 ( Mpa-310)
Elongation in 2" (50mm): Min. 12%
ASTM A-153 - Standard specification for hot dipped galvanizing
Bolt/nut: Carbon steel bolts and nuts are heat treated and conform to the physical
properties of ASTM A-183
Gasket: EPDM,Silicon Rubber, Nitrile
Available Size: DN25mm to DN400mm(1" to 16")
Standard Coating: Epoxy Powder (painted,dacromat,galvanized can be chose)
Advantage of Grooved Fittings
Built in deflection tolerance allow for quick installation and easy pipe alignment in
uneven areas,or where ground settling may occur.
Grooved couplings allow for some linear expansion and contraction as well as
horizontal variance. These features eliminate limited pipeline stresses without
the use of costly expansive joints.
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