Mechanical Seal T687 Replace John Crane 680

• Customization: Available
• Structure: Single End
• Pressure: Medium Pressure Mechanical Seals
• Model NO.: T687
• Temperature: Temperature Mechanical Seal
• Performance: Corrosion
• Standard: Standard, Nonstandard
• Type: T687
• Balance: Balanced
• Transport Package: Carton
• Specification: 20-100mm
• Trademark: Xindeng
• Origin: China
• HS Code: 8484200090
• Production Capacity: 20000

Product Description

Mechanical Seal T687

 

Replacement to:

John Crane 680

 

 

 

Operational Conditions:
Temperature: -75ºC to +200ºC
Pressure: ≤2.0MPa
Speed: ≤23m/s

Materials:
Stationary Ring:TC, Silicon Carbide
Rotary Ring:Carbon ,Silicon Carbide,TC
Secondary Seal:NBR,EPDM,Viton
Bellows:Steel
Spring and Metal Parts:Steel

Applications:
Oil, light hydrocarbon, 
aromatic Hydrocarbon, 
organic solvents,
week acids, ammonia
 

 

Size/	d	D3	L1		INCH	d	D3	L1
Metric
18	18	32	27.7		0.750	0.750	1.312	1.25
20	20	33.3	27.7		0.875	0.875	1.437	1.25
22	22	36	27.7		0.937	0.937	1.5	1.25
24	24	38.1	30.2		1.000	1.000	1.562	1.25
25	25	39	30.2		1.125	1.125	1.687	1.25
28	28	42	32.7		1.250	1.250	1.812	1.312
30	30	44	32.7		1.375	1.375	1.937	1.437
32	32	46	32.7		1.500	1.500	2.063	1.437
33	33	47	32.7		1.625	1.625	2.187	1.437
35	35	49.2	32.7		1.750	1.750	2.312	1.437
38	38	52.4	34.2		1.875	1.875	2.437	1.5
40	40	55.6	34.2		2.000	2.000	2.562	1.5
43	43	58.7	34.2		2.125	2.125	2.687	1.5
45	45	58.7	34.2		2.250	2.250	2.812	1.562
48	48	61.9	34.2		2.375	2.375	2.937	1.562
50	50	65.1	34.7		2.500	2.500	3.187	1.562
53	53	68.3	34.7		2.625	2.625	3.312	1.625
55	55	71	34.7		2.750	2.750	3.437	1.625
60	60	74.6	39.7		2.875	2.875	3.625	1.687
65	65	84.1	39.7		3.000	3.000	3.75	1.687
70	70	87.3	45.2		3.125	3.125	3.875	1.75
75	75	95.3	45.2		3.250	3.250	4	1.75
80	80	98.4	44.7		3.375	3.375	4.125	1.75
85	85	104.8	44.7		3.500	3.500	4.25	1.875
90	90	108	49.7		3.625	3.625	4.375	1.875
95	95	114.3	49.7		3.750	3.750	4.5	1.875
					3.880	3.880	4.625	1.875
					4.000	4.000	4.75	1.875

Q1:Are you a factory or trading company
A1: We are a factory with independent import and export right.

Q2: How does your factory do regarding quality control?
A2: All the products will be 100% checked before the shipment.

Q3: When can I get the price?
A3:Usually we quote within 24 hours after we get your inquiry.

Q4: Can I order one piece for samples to test the quality?
A4: yes ,the samples are free ,express cost are on your side.

Q5: What is the price of shipping?
A5: Depending upon the port of delivery, prices varies.
We always choose the most economical and reliable shipping company to make sure you receive the goods in time, the tracking number
will be provided to you once the consignment is shipped.

Q6: Do you have products in stock?
A6:Yes, for most standard products ,we have.

Q7:Can you produce Non standard (OEM) product?
A7:Yes, OEM is acceptable, we can produce non-standard products as your requirements (according to your sample or drawing)