Metal Mechanical Seal Model 670 676 680 John Crane Pump Bellow Seal
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Product Highlights
- Wide Size Range: Available in sizes from 18mm to 150mm (0.75' to 7') for diverse pumps.
- Premium Materials: Faces/Seats use Carbon, SiC, TC; Bellows use NBR, EPDM, FKM, etc.
- OEM/ODM Support: Full customization available from samples, designs, or specific applications.
- Direct Factory Price: Factory direct sales ensure competitive pricing without middlemen.
- Fast Delivery: Stock items ship immediately; mass production takes approximately 20 days.
- Sample Refund Policy: Sample costs are refundable upon placement of a formal order.
Product Attributes
- Customization
- Available
- Pressure
- High Pressure Mechanical Seals
- Speed
- High-Speed Mechanical Seal
- Model NO.
- M14/ JC 670 676 680 mechanical seal
- Temperature
- High Temperature Mechanical Seal
- Performance
- High Pressure
- Standard
- Standard
- Face
- Carbon, Sic, Tc
- Seat
- Ceramic, Sic, Tc
- Transport Package
- Carbon
- Trademark
- Sealcon
- Origin
- China
Product Images of Metal Mechanical Seal Model 670 676 680 John Crane Pump Bellow Seal
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Product Description
Metal mechanical seal Model 670 676 680 john crane pump bellow seal
1. Metal Bellow seal M14/15/16 for pumps,equals to John crane mechanical seal 670/676/680
2. Our seals can replace the original seals.
3. We always keep balance both on Price and Quality.
Performance Capabilities
| Temperature: | 75ºC to 200ºC |
| Pressure: | Up to 20 bar |
| Speed: | Up to 23 m/s |
| End play/axial float allowance | ±0.1mm |
| Sizes | 18mm to 150mm,0.75" to 7" |
| brand | sealcon |
Materials Combination
l Face: Carbon, SiC, TC
l Seat: Ceramic, SiC, TC
l Bellow: NBR, EPDM, FK Aflas,FEP,Kalred.Chemraz,Grofoil etc..
l Spring: SS304, SS316
l Metal parts: SS304, SS316


| Specification | d | D | L1 |
| M14/M15/M16-18 | 18 | 32 | 27.7 |
| M14/M15/M16-20 | 20 | 33.3 | 27.7 |
| M14/M15/M16-22 | 22 | 36 | 27.7 |
| M14/M15/M16-24 | 24 | 38.1 | 30.2 |
| M14/M15/M16-25 | 25 | 39 | 30.2 |
| M14/M15/M16-28 | 28 | 42 | 32.7 |
| M14/M15/M16-30 | 30 | 44 | 32.7 |
| M14/M15/M16-32 | 32 | 46 | 32.7 |
| M14/M15/M16-33 | 33 | 47 | 32.7 |
| M14/M15/M16-35 | 35 | 49.2 | 32.7 |
| M14/M15/M16-38 | 38 | 54.2 | 34.2 |
| M14/M15/M16-40 | 40 | 55.6 | 34.2 |
| M14/M15/M16-43 | 43 | 58.7 | 34.2 |
| M14/M15/M16-45 | 45 | 58.7 | 34.2 |
| M14/M15/M16-48 | 48 | 61.9 | 34.2 |
| M14/M15/M16-50 | 50 | 65.1 | 34.2 |
| M14/M15/M16-53 | 53 | 68.3 | 34.2 |
| M14/M15/M16-55 | 55 | 71 | 34.2 |
| M14/M15/M16-60 | 60 | 74.6 | 39.7 |
| M14/M15/M16-65 | 65 | 84.1 | 39.7 |
| M14/M15/M16-70 | 70 | 87.3 | 45.2 |
| M14/M15/M16-75 | 75 | 95.3 | 45.2 |
| M14/M15/M16-80 | 80 | 98.4 | 44.7 |
| M14/M15/M16-85 | 85 | 104.8 | 44.7 |
| M14/M15/M16-90 | 90 | 108 | 49.7 |
| M14/M15/M16-95 | 95 | 114.3 | 49.7 |
| M14/M15-100 | 100 | 120.7 | 49.7 |
| M14/M15-105 | 105 | 131.7 | 48.5 |
| M14/M15-110 | 110 | 138.1 | 48.5 |
| M14/M15-115 | 115 | 144.5 | 48.5 |
| M14/M15-120 | 120 | 144.5 | 48.5 |
| M14/M15-125 | 125 | 150.8 | 48.5 |
| M14/M15-130 | 130 | 157.8 | 48.5 |
| M14/M15-140 | 140 | 170.5 | 48.5 |
| M14/M15-150 | 145 | 176.9 | 48.5 |
Our Factory has advanced CNC equipment and test equipment to control the mechanical seal quality. The products are in according with DIN24960, ISO3069, EN12756, API682 standards.

Q:Are you trading company or factory ?
A:We are a factory .
Q:Where is your factory located ?
A:our factorty is located in Jiande, Hangzhou .
Q:How long is your delivery.
A:For stock items ,we can ship them immediately after receive payment .
For other items,we will need 20 days for mass production.
Q:Do you provide free samples ?
A:Usually we do not provide free samples .There is a sample cost which can be refund after you place order .
Q:What do you usually shipped through?
A:Air freight, Sea freight,express are the most way of shipment due to small weight and size for precise products.
Q:What's your payment terms ?
A:We accept T/T, Paypal, Western Unionwhen qualified goods are ready for ship.
Also pay to ****** is welcome.
Q:I can not find our products in your catalog ,can you make customized products for us ?
A:Yes ,Customized products is available .
Q:I don't have drawing or picture available for custom products, could you design it?
A: Yes,we can make the best suitable design in accordance with your application.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR253714". Items marked "" are certified.
Company Profile
Hangzhou Sealcon Fluid Machinery Co., Ltd is located in Hangzhou, Zhejiang province, it is a manufacturing & trading company with self-import & export license. The company is dedicated in providing best fluid machinery sealing solution to our customers. Our staffs have many years of experience in mechanical seals and pumps, we can design mechanical seals in accordance with your application, we have advanced CNC equipment and test equipment to control the quality. We will satisfy our customers with our experience, quality, service and shortest delivery.
Our products including:
Mechanical seals
Seal rings
Investment castings
Pumps
Valves
Couplings
PTFE products
Ceramic products
SIC products
TC products
Our products are successfully used in different fields, such as water treatment, petroleum, chemistry, refinery, pulp & paper, food, marine etc. The products are in according with DIN24960, ISO3069, EN12756, API682 standards. We are always focus on the quality, price and service, with the development of these yeas, our customers are from all over the world, mainly in Europe, USA and Southeast Asia. All Sealcon staffs warmly welcome all customers to visit us and establish long-term cooperation with each other.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- A1-2-705, Xixi Shouzuo, Wenyi West Road, Hangzhou, Zhejiang, China
-
Plant Area
- 4773 square meters
-
Number of Employees
- 16
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays, one month
Off Season Lead Time: within 15 workdays, one month -
Nearest Port
- Shanghai Port, Ningbo Port
-
Minimum Order Quantity
- 1 piece
-
Supply Chain Partners
- 120
Our Production Capability & Technical Expertise
- Main Products
- Pump Mechanical Seal, John Crane Mechanical Seal, Grundfo Pump Mechanical Seal, Water Pump Mechanical Seal, Roten Mechanical Seal, Mechanical Shaft Seal, Mechanical Seal, Flygt Mechanical Seal, Solar Water Pump, Water Pump
-
Production Lines
- 1
-
Production Machines
- Sawing Machine, CNC Lathe, Wire Cutting Machine, Milling Machine, Grinder
-
QA/QC inspectors
- 2 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Finished product checked by packing staff
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 2 people
-
Traceability of Raw Materials
- No
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2011-05-05
-
Export Year
- 14 years
-
Main Markets
- Europe, Southeast Asia/ Mideast
-
Repeat Buyers Choice
- 30%~50%
-
Number of Foreign Trading Staff
- 6
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- Are you a trading company or a factory?
- We are a factory.
- Where is your factory located?
- Our factory is located in Jiande, Hangzhou.
- How long is your delivery time?
- For stock items, we can ship them immediately after receiving payment. For other items, we will need 20 days for mass production.
- Do you provide free samples?
- Usually we do not provide free samples. There is a sample cost which can be refund after you place order.
- What do you usually shipped through?
- Air freight, Sea freight, express are the most way of shipment due to small weight and size for precise products.
- What's your payment terms?
- We accept T/T, Paypal, Western Union when qualified goods are ready for ship. Also pay to ****** is welcome.
- Can you make customized products if they are not in your catalog?
- Yes, Customized products is available.
- Can you design custom products if I don't have a drawing or picture?
- Yes, we can make the best suitable design in accordance with your application.
Send your message to this supplier
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