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Mechanical seal R-31K/R-31U

Mechanical seal R-31K/R-31U

Mechanical seal R-31K/R-31U is a combination of a seal of type R-21 with a hard coating of friction pairs, for more severe operating conditions. The seal is single, does not depend on the direction of rotation of the shaft, with a strong central non-clogging spring. It can be used as a component of a tandem seal.

Application: sewerage, water supply, food industry, centrifugal pumps, drainage, compressors and other rotating equipment.

Type: Flowserve Pac-seal Type 31.

Temperature: -20°~150°

Pressure: ≤1.5 MPa

Speed: ≤13 m/sec

Materials:

Rotary ring: Carbon/SIC;
Stationary ring: Ceramic/SIC/TC;
Bellows: NBR/EPDM/VITON;
Spring: SS304/SS316;
Metal parts: SS304/SS316.

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Mechanical seal R-31K

(Inch)	d1 (H6)	d3 (Max)	d7 (h8)	L3 (±0.5)	L4
0.500	12,70	23,3	27,79	25,40	8,74
0.625	15,87	30,1	30,95	25,40	10,32
0.750	19,05	33,1	34,15	25,40	10,32
0.875	22,23	36,3	37,30	25,40	10,32
1.000	25,40	39,4	40,50	25,40	10,32
1.125	28,58	44,5	47,63	33,34	11,99
1.250	31,75	47,6	50,80	33,34	11,99
1.375	34,93	50,8	53,98	33,34	11,99
1.500	38,10	54.0	57,15	33,34	11,99
1.625	41,28	60,3	60,35	33,34	11,99
1.750	44,45	60,3	63,50	40,48	11,99
1.875	47,63	63,9	66,70	40,48	11,99
2.000	50,80	66,7	69,85	40,48	11,99
2.125	53,98	74,6	73,05	41.00	13,50
2.250	57,15	74,6	76,20	41.00	13,50
2.375	60,33	82.0	79,40	41.00	13,50
2.500	63,50	86,1	82,55	41.00	13,50
2.625	66,68	86,1	92,10	49.00	15,90
2.750	69,85	88,9	95,25	49.00	15,90
2.875	73,03	96,5	98,45	49.00	15,90
3.000	76,20	96,5	101,65	49.00	15,90

Mechanical seal R-31U

(Inch)	d1 (H6)	d3 (Max)	d7 (h8)	L3 (±0.5)	L4
0.500	12,70	23,3	25,40	20,62	7,9
0.625	15,87	30,1	31,75	22,22	10,3
0.750	19,05	33,1	34,93	22,22	10,3
0.875	22,23	36,3	38,10	23,80	10,3
1.000	25,40	39,4	41,28	25,40	11,1
1.125	28,58	44,5	44,45	26,97	11,1
1.250	31,75	47,6	47,63	26,97	11,1
1.375	34,93	50,8	50,80	28,58	11,1
1.500	38,10	54.0	53,98	28,58	11,1
1.625	41,28	60,3	60,33	34,93	12,7
1.750	44,45	60,3	63,50	34,93	12,7
1.875	47,63	63,9	66,68	38,10	12,7
2.000	50,80	66,7	69,85	38,10	12,7
2.125	53,98	74,6	76,20	42,85	14,3
2.250	57,15	74,6	79,38	42,85	14,3
2.375	60,33	82.0	82,55	46,02	14,3
2.500	63,50	86,1	85,73	46,02	14,3
2.625	66,68	86,1	85,73	49,20	15,9
2.750	69,85	88,9	88,90	49,20	15,9
2.875	73,03	96,5	95,25	52,37	15,9
3.000	76,20	96,5	98,43	52,37	15,9

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In stock

Mechanical seal R-31K 1, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_1__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$47.97

$-2.52

$50.49

Mechanical seal R-31K 1.1/2, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_1.1/2__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.1/2
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$70.61

$-3.70

$74.31

Mechanical seal R-31K 1.1/4, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_1.1/4__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.1/4
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$76.20

$-4.02

$80.22

Mechanical seal R-31K 1.1/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_1.1/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.1/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$53.66

$-2.83

$56.49

Mechanical seal R-31K 1.3/4, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_1.3/4__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.3/4
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$132.69

$-6.98

$139.67

Mechanical seal R-31K 1.3/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_1.3/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.3/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$64.97

$-3.41

$68.38

Mechanical seal R-31K 1.5/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_1.5/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.5/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$122.79

$-6.46

$129.25

Mechanical seal R-31K 1.7/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_1.7/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.7/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$142.62

$-7.51

$150.13

Mechanical seal R-31K 1/2, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_1/2__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1/2
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$24.02

$-1.26

$25.28

Mechanical seal R-31K 2, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_2__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	2
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$151.07

$-7.94

$159.01

Mechanical seal R-31K 2.1/2, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_2.1/2__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	2.1/2
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$189.18

$-9.95

$199.13

Mechanical seal R-31K 2.1/4, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_2.1/4__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	2.1/4
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$170.80

$-8.99

$179.79

Mechanical seal R-31K 2.1/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_2.1/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	2.1/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$160.90

$-8.48

$169.38

Mechanical seal R-31K 2.3/4, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_2.3/4__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	2.3/4
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$208.94

$-10.99

$219.93

Mechanical seal R-31K 2.3/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_2.3/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	2.3/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$179.28

$-9.44

$188.72

Mechanical seal R-31K 2.5/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_2.5/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	2.5/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$199.01

$-10.49

$209.50

Mechanical seal R-31K 2.7/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_2.7/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	2.7/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$217.37

$-11.42

$228.79

Mechanical seal R-31K 3, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_3__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	3
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$227.29

$-11.96

$239.25

Mechanical seal R-31K 3/4, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_3/4__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	3/4
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$35.33

$-1.87

$37.20

Mechanical seal R-31K 5/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_5/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	5/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$29.69

$-1.57

$31.26

Mechanical seal R-31K 7/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13688_7/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	7/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$40.93

$-2.15

$43.08

Mechanical seal R-31U 1, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13690_1__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$47.97

$-2.52

$50.49

Mechanical seal R-31U 1.1/2, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13690_1.1/2__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.1/2
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$70.61

$-3.70

$74.31

Mechanical seal R-31U 1.1/4, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13690_1.1/4__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.1/4
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$59.28

$-3.12

$62.40

Mechanical seal R-31U 1.1/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13690_1.1/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.1/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$53.66

$-2.83

$56.49

Mechanical seal R-31U 1.3/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13690_1.3/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.3/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$64.97

$-3.41

$68.38

Mechanical seal R-31U 1.5/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13690_1.5/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.5/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$122.79

$-6.46

$129.25

Mechanical seal R-31U 1.7/8, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13690_1.7/8__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1.7/8
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$142.62

$-7.51

$150.13

Mechanical seal R-31U 1/2, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13690_1/2__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	1/2
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$24.02

$-1.26

$25.28

Mechanical seal R-31U 2, CAR/CER, EPDM, 304, N

Pre-order only

Vendor code: 13690_2__CAR/CER__EPDM__304__N

Producer	BTS Engineering
Shaft diameter	2
Rubber type	EPDM
Stationary and rotating face	CAR/CER
Material of metal part	304

$151.07

$-7.94

$159.01