mechanical seal john crane
Negotiable
Min.Order:1
Changsha Aobo Carbon Co., Ltd.
Detail information about mechanical seal john crane :
Style | Axis Dia | Hole dia of pump shell | Working height | H1 | H1 |
C12A21 | 12 | 30 | 7.6 | 7.6 | 17.5 |
C12D20 | 12 | 30 | 9.1 | 6.3 | 17.5 |
C12N20 | 12 | 30 | 7.6 | 7.6 | 17.5 |
C16120 | 15.918 | 38.1 | 9 | 8 | 19.5 |
C17D21 | 17 | 35 | 10.1 | 8 | 20.5 |
1. About our products :
1) Because of using wafer spring, the force acting on the sealing surface is more uniform , the tracking ability performance
of water seal is improved significantly
2) Lower working height. It can improve seal’s working surroundings.
3) Adhesive structure
2. About material Chosen Principals:
Antifreeze Type: Organic acids series, phosphoric acids series, half-organic acids series.
Speed: Max 6000rpm
Mating ring code : M
Silica series : Mating ring code V
Rubber : NBR
3. Water seals assembly:
1) To use the following tools (fixture)while fitting water seal by pressure. In addition, axial runout of the retainer’s big end face must be
within 0.15mm while taking the shaft of bearing as benchmark.
2) The working height of water seal must be within ±0.1mm around the basic working height .
4. Seal operating :
Dry run (dry friction)should be avoided after mounting water seal as possible. This means water seal must be operate in the filled sealing liquid. If dry run is necessary when testing leakage of water seal, speed should be within 200 rpm.
1. when order brushes product, end users should specify the order drawing number, type and size the required quantity and delivery time requirements
2. Special specifications and structure, please provide drawings or samples
3. Our company has kept the map, when ordering, please indicate the figure number
4. We list the commonly used various sizes and models of carbon brushes , if there are special requirements, please note so that specify them in contract
5. How to select brushes
-according to the motor feature to choose grade of carbon brush
-according to box size of brush holder to confirm size of carbon brush
-according to brush holder structural to know type of carbon brush
Firstly --- Lined with bubble film
Then --- Outer use five layers of corrugated board
Finally --- Product is heavy or customer demand, will use wooden case