Reducing ring, external thread, internal thread, stainless steel

Reducing ring, external thread x internal thread, stainless steel

This reducer ring made of high-quality AISI 316 V4A stainless steel (material 1.4408) offers reliable adaptation between different pipe dimensions thanks to its conical BSP-R thread. Manufactured in accordance with ISO 4144 and featuring CNC-milled Whitworth threads, it guarantees a precise fit. The material is resistant to aggressive media and meets the requirements for drinking water installations in accordance with DVGW W541.

Technical data

feature	Execution
connection	External thread x Internal thread
Thread	BSP-R (tapered) / Rp (cylindrical), ISO 7/1, DIN 2999, BS21
temperature range	–4 °F to 392 °F
Working pressure (PN)	max. 20 bar
Material	Stainless steel AISI 316 V4A (1.4408)
standards	ISO 4144, EN 10213-4
Properties	Corrosion-resistant, suitable for drinking water, resistant to acids, alkalis, chlorides

size options

Variant	Internal thread (Rp)	External thread (R)	H (mm)	L (mm)	SW (mm)
1/4" x 1/8"	Rp 1/8" (9.73 mm)	R 1/4" (13.16 mm)	10	16	14
3/8" x 1/8"	Rp 1/8" (9.73 mm)	R 3/8" (16.66 mm)	10	16.5	18
3/8" x 1/4"	Rp 1/4" (13.16 mm)	R 3/8" (16.66 mm)	10	16.5	18
1/2" x 1/8"	Rp 1/8" (9.73 mm)	R 1/2" (20.95 mm)	13	19.5	22
1/2" x 1/4"	Rp 1/4" (13.16 mm)	R 1/2" (20.96 mm)	12	19.5	22
1/2" x 3/8"	Rp 3/8" (16.66 mm)	R 1/2" (20.96 mm)	12	19.5	22
3/4" x 1/8"	Rp 1/8" (9.73 mm)	R 3/4" (26.44 mm)	15	21	28
3/4" x 1/4"	Rp 1/4" (13.16 mm)	R 3/4" (26.44 mm)	14	21	28
3/4" x 3/8"	Rp 3/8" (16.66 mm)	R 3/4" (26.44 mm)	14	21	28
3/4" x 1/2"	Rp 1/2" (20.96 mm)	R 3/4" (26.44 mm)	14	21	28
1" x 1/8"	Rp 1/8" (9.73 mm)	R 1" (1.32 in)	16	24.5	35
1" x 1/4"	Rp 1/4" (13.16 mm)	R 1" (1.32 in)	17	24	35
1" x 3/8"	Rp 3/8" (16.66 mm)	R 1" (1.32 in)	16	24	35
1" x 1/2"	Rp 1/2" (20.96 mm)	R 1" (1.32 in)	16	24	35
1" x 3/4"	Rp 3/4" (26.44 mm)	R 1" (1.32 in)	16	24	35
1 1/4" x 1/8"	Rp 1/8" (9.73 mm)	R 1 1/4" (41.91 mm)	20	30	43
1 1/4" x 1/4"	Rp 1/4" (13.16 mm)	R 1 1/4" (41.91 mm)	17	25.5	44
1 1/4" x 3/8"	Rp 3/8" (16.66 mm)	R 1 1/4" (41.91 mm)	16	23	43
1 1/4" x 1/2"	Rp 1/2" (20.96 mm)	R 1 1/4" (41.91 mm)	19	27	43.5
1 1/4" x 3/4"	Rp 3/4" (26.44 mm)	R 1 1/4" (41.91 mm)	18	27	44
1 1/4" x 1"	Rp 1" (1.33 inches)	R 1 1/4" (41.91 mm)	19	27	44
1 1/2" x 1/8"	Rp 1/8" (9.73 mm)	R 1 1/2" (47.81 mm)	17	25.5	50
1 1/2" x 1/4"	Rp 1/4" (13.16 mm)	R 1 1/2" (47.81 mm)	19	29	50
1 1/2" x 3/8"	Rp 3/8" (16.66 mm)	R 1 1/2" (47.81 mm)	18	30	49
1 1/2" x 1/2"	Rp 1/2" (20.96 mm)	R 1 1/2" (47.80 mm)	19	33.5	50
1 1/2" x 3/4"	Rp 3/4" (26.44 mm)	R 1 1/2" (47.80 mm)	19	28	50
1 1/2" x 1"	Rp 1" (1.33 inches)	R 1 1/2" (47.80 mm)	18	27	50
1 1/2" x 1 1/4"	Rp 1 1/4" (41.91 mm)	R 1 1/2" (47.80 mm)	19	27	50
2" x 1/8"	Rp 1/8" (9.73 mm)	R 2" (59.61 mm)	19	31.5	61
2" x 1/4"	Rp 1/4" (13.66 mm)	R 2" (59.61 mm)	19	31.5	61
2" x 3/8"	Rp 3/8" (16.66 mm)	R 2" (59.61 mm)	20	31.5	61
2" x 1/2"	Rp 1/2" (20.96 mm)	R 2" (59.61 mm)	22	32	62
2" x 3/4"	Rp 3/4" (26.44 mm)	R 2" (59.61 mm)	19	31	62
2" x 1"	Rp 1" (1.33 inches)	R 2" (59.61 mm)	20	31.5	61
2" x 1 1/4"	Rp 1 1/4" (41.91 mm)	R 2" (59.61 mm)	20	31.5	61
2" x 1 1/2"	Rp 1 1/2" (47.80 mm)	R 2" (59.61 mm)	23	32	62

Advantages

AISI 316 V4A stainless steel, resistant to corrosion and aggressive media
Temperature resistant from –44 °F to 392 °F
Max. operating pressure 20 bar with water (20 °C)
Precise CNC-milled Whitworth threads according to ISO 7/1
Versatile use in industry, chemistry, food technology, and drinking water installations

Notice

The threads are not self-sealing. For installation, sealing with hemp, PTFE tape, or sealing paste is recommended.