M680 John Crane Type680

MINKIX Code:
M680
Equivalent to:

Johncrane Type 670/676/680

M670 All Hast-C, M676 Hast-C bellow/316SS,M680 AM350 bellow/316SS
INTRODUCTION OF THIS MECHANICAL SEAL

M680 is AM350 low-temperature bellows assembly for large sizes and midly corrosive application

M670 all Hast-C high-strength low temperature seal for use on a broad range of corrosive media

No dynamically loaded o-ring;Self cleaning effect;For extreme temperature ranges

short installation length possible; pumping screw for highly viscous median

Widely used in industries including chemical processing, food processing, oil refinery, power station

Quality Material
Low Leakage Rate
Fast Quotation
In-stock Supply
Lightening Delivery
Reliable After-Sales

Product Drawing

Product Information

Design Features

Balanced single seal for plain shafts

Independent of direction of rotation with metal bellows rotating

Static secondary seal

45°C inner diameter angle of bellows

Available in single or dual arrangement, shaft-mounted or in a cartridge

Materials available

Seal face: Carbon, Anti-carbon, SIC, TC

Elastomer: Nitrile, Viton, EPDM

Operating Conditions

Temperature: -30°C to +260°C

Pressure: Up to 25 bar , 360 psi

Speed: Up to 25m/s, 5000fpm

Depending on medium, size and material

Product Dimensions & Information

Imperial Dimension

D (mm)

0.750	1.312	1.250	18	32.0	27.5
0.875	1.437	1.250	20	33.3	27.5
0.937	1.500	1.250	22	36.0	27.5
1.000	1.562	1.250	24	38.1	30.0
1.125	1.687	1.250	25	39.0	30.0
1.250	1.812	1.312	28	42.0	32.5
1.375	1.937	1.437	30	44.0	32.5
1.500	2.062	1.437	32	46.0	32.5
1.625	2.187	1.437	33	47.0	32.5
1.750	2.132	1.437	35	49.2	32.5
1.875	2.437	1.500	38	52.4	34.0
2.000	2.562	1.500	40	55.6	34.0
2.125	2.687	1.500	43	58.7	34.0
2.250	2.812	1.562	45	58.7	34.0
2.375	2.937	1.562	48	61.9	34.0
2.500	3.187	1.562	50	65.1	34.5
2.625	3.312	1.625	53	68.3	34.5
2.750	3.437	1.625	55	71.0	34.5
2.875	3.625	1.687	60	74.6	39.5
3.000	3.750	1.687	65	84.1	38.5
3.125	3.875	1.750	70	87.3	45.0
3.250	4.000	1.750	75	95.3	45.0
3.375	4.125	1.750	80	98.4	44.5
3.500	4.250	1.875	85	104.8	44.5
3.625	4.375	1.875	90	108.0	49.5
3.750	4.500	1.875	95	114.3	49.5
3.875	4.625	1.875	100	120.7	49.5
4.000	4.750	1.875	105	131.7	48.3

MINKIX Material Code

The MINKIX Material Code is comprised of 5 character code such as "BCFZF" which is defined by the following parameters. Check the material code below to specify your requirement on materials. With the detailed code provided, MINKIX promises to speed up offering quotation to you.

Rotary Materials
- A – Resin-Car
- B – 99.5% Ceramic
- C – Anti-Car
- Q – Sintered-sic
- S – RB-SIC
- T– YN6 TC
- I – High Nickel Cast Iron
- Z – Bronze
- D – 304 Stainless Steel
- G – 316 Stainless Steel
Stationary Materials
- A – Resin-Car
- B – 99.5% Ceramic
- C – Anti-Car
- Q – Sintered-sic
- S – RB-SIC
- T– YN6 TC
- I – High Nickel Cast Iron
- Z – Bronze
- D – 304 Stainless Steel
- G – 316 Stainless Steel
Secondary Seal Materials
- K – KALREZ
- X – AFLAS
- E – EPDM
- F – PTFE
- M – SILICONE
- N – NITRILE
- P – NEOPRENE
- V – FKM
Spring Materials
- D – 304 Stainless Steel
- G – 316 Stainless Steel
- D2 – 304L Stainless Steel
- G2 – 316L Stainless Steel
- H – Hastelloy
Construction Materials
- D – 304 Stainless Steel
- G – 316 Stainless Steel
- D2 – 304L Stainless Steel
- G2 – 316L Stainless Steel
- H – Hastelloy

Combine

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