Grooved Reducing Flexible Coupling Manufacturer

Grooved Reducing Flexible Coupling

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Ductile iron grooved fittings

Grooved reducing flexible coupling is a pipe fitting made of ductile iron. It features a flat-bolted housing structure with a certain gap between the joint and the groove base, allowing for flexible connections and the ability to accommodate axial displacement and angular deflection. The grooved reducing flexible coupling can replace two separate couplings and one reducer fitting.

Recommended applications

Grooved reducing flexible coupling can be used for various pipelines, such as sewage pipes, water supply pipes, etc.

Key Specifications

Available sizes: 1 1/4×1 inch~8×6 inch |DN32×25~DN200×150
Working pressure: 300PSI/2.07MPa
Certificate: UL/CE certified
Coating: epoxy/galvanized
Color: red/orange/white, etc.
Material: ductile iron

Specifications

Nominal Size	Pipe OD	Dimensions			Bolt Size
mm/in	mm/in	mm/in			No.-Size mm
mm/in	mm/in	A	B	C	No.-Size mm
50x32 / 2x1 1/4	60.3x42.4 / 2.375x1.660	86 / 3.39	125 / 4.93	44 / 1.74	2-3/8x55 / 2-M10x57
50x40 / 2x1 1/2	60.3x48.3 / 2.375x1.900	86 / 3.39	125 / 4.93	44 / 1.74	2-3/8x55 / 2-M10x57
65x40 / 2 1/2x1 1/2	73.0 x 48.3 / 2.875x1.900	96 / 3.78	136 / 5.35	45 / 1.78	2-3/8x55 / 2-M10x57
65x50 / 2 1/2x2	73.0x60.3 / 2.875x2.375	96 / 3.78	136 / 5.35	45 / 1.78	2-3/8x55 / 2-M10x57
65x50 / 2 1/2x2	76.1 x60.3 / 3.000x2.375	102 / 4.02	140 / 5.51	45 / 1.78	2-3/8x55 / 2-M10x57
80x40 / 3x1 1/2	88.9x48.3 / 3.500x1.900	115 / 4.53	158 / 6.22	45 / 1.78	2-1/2x70 / 2-M12x70
80x50 / 3x2	88.9x60.3 3.500x2.375	115 / 4.53	158 / 6.22	45 / 1.78	2-1/2x70 / 2-M12x70
80x65 / 3x2 1/2	88.9x73.0 / 3.500x2.875	115 / 4.53	158 / 6.22	45 / 1.78	2-1/2x70 / 2-M12x70
80x65 / 3x2 1/2	88.9x76.1 / 3.500x3.000	115 / 4.53	158 / 6.22	45 / 1.78	2-1/2x70 / 2-M12x70
100x40 / 4 x1 1/2	114.3x48.3 / 4.500x1.900	142 / 5.59	192 / 7.56	50 / 1.97	2-1/2x70 / 2-M12x70
100x50 / 4x2	114.3x60.3 / 4.500x2.375	142 / 5.59	192 / 7.56	50 / 1.97	2-1/2x70 / 2-M12x70
100x65 / 4x2 1/2	114.3x73.0 / 4.500x2.875	142 / 5.59	192 / 7.56	50 / 1.97	2-1/2x70 / 2-M12x70
100x65 / 4x2 1/2	114.3x76.1 / 4.500x3.000	142 / 5.59	192 / 7.56	50 / 1.97	2-1/2x70 / 2-M12x70
100x80 / 4x3	114 3x88.9 / 4.500x3.500	142 / 5.59	192 / 7.56	50 / 1.97	2-1/2x70 / 2-M12x70
150x80 / 6x3	165.1x88.9 / 6.500x3.500	200 / 7.87	250 / 9.84	50 / 1.97	2-5/8x85 / 2-M16x85
150x100 / 6x4	165.1 x114.3 / 6.500x4.500	200 / 7.87	250 / 9.84	50 / 1.97	2-5/8x85 / 2-M 16x85
150x80 / 6x3	168.3x88.9 / 6.625x3.500	202.5 / 7.97	252 / 9.92	50 / 1.97	2-5/8x85 / 2-M16x85
150x 100 / 6x4	168.3 x 114.3 / 6.625x4.500	202.5 / 7.97	252 / 9.92	50 / 1.97	2-5/8x85 / 2-M16x85
200x150 / 8x6	219.1 x 165.1 / 8.625x6.500	257 / 10.12	322 / 12.68	56 / 2.2	2-3/4x115 / 2-M20x 115
200x150 / 8x6	219.1x168.3 / 8.625x6.625	257 / 10.12	322 / 12.68	56 / 2.2	2-3/4x115 / 2-M20x115

What are the advantages of grooved piping systems in the fire protection industry?

In the fire protection industry, especially in automatic fire sprinkler piping systems, grooved connections are commonly used. The biggest advantages of this type of connection are faster and more economical installation, higher reliability after installation, and lower maintenance costs.

What are the advantages of flexible coupling?

Compared to traditional connection methods such as welding, threading, and soldering, flexible couplings offer faster and safer installation, and reduced cost.
Unlike traditional pipe connection methods (such as welded or soldered joints), flexible couplings do not generate dust pollution or product contamination.
Reducing flexible couplings can directly connect pipes of different sizes that allows for direct size reduction and eliminates the need for a reducer two separate couplings.