Diaphragm valve is a special form of the cut-off valve, diaphragm valve opening and closing pieces is a piece of soft material made of diaphragm, the valve body cavity and the valve cover cavity and drive components separated, so called diaphragm valve. Diaphragm valve maintenance and installation precautions: 1. Diaphragm valve should be stored in a dry and ventilated room, stacking is prohibited. 2. The path of the stock diaphragm valve must be sealed at both ends to prevent foreign matter from entering the cavity and damaging the sealing parts. And should avoid contact with oil or other flammable materials. 3. Diaphragm valve metal surface should be removed dirt, and coated with anti-rust oil. Oil cup often need to note the grease. 4. Liner or rubber diaphragm surface Do not brush grease, so as to avoid swelling of rubber and affect the valve life. 5. During storage or during deactivation, hand wheel should be rotated counterclockwise, the valve is in micro-Kai state, to avoid the diaphragm due to long-term compression and loss of elasticity. 6. During transport or installation, the sling should not be tied to the hand wheel or stem. And it is forbidden to collide with other metal or hard objects to prevent damaging parts and lining rubber. 7. Before installation, should carefully check the pipeline operating conditions and the medium is consistent with the scope of the valve to avoid improper use of unnecessary losses, and even accidents. 8. In addition to should not be applied to the vacuum line, the pipeline can be installed anywhere for two-way flow, but should ensure that the operation and maintenance convenience. 9. Before installation, the body cavity should be cleaned to prevent dirt blocking or damage seal parts, and check whether the connection bolts fastening parts. 10. During operation, the parts in contact with the medium must be checked frequently, and the wearing parts should be replaced on a regular basis according to the actual usage. 11. When changing the diaphragm, care should be taken not to over-tighten or loosen the diaphragm. 12. Used in intermittent running pipe, then stop using the period, the contact area should be cleaned with the media to extend the service life. 13. In the manual control of the diaphragm valve, the valve should not be opened or closed by means of auxiliary levers to avoid excessive torque damage to the drive parts or sealing parts. 14. After the overhaul of the diaphragm valve, before the application, according to the relevant provisions of the test conducted after the leak test before installation.
Rail Anchor
Main Rail Anchor Types
* 50E3 Rail Anchors
Reference project: SBB railroad network
Technical parameter:
Material: Alloy spring steel
Product properties: Hardness HB300-380
Longitudinal resistance＞7KN to EN 13481-3
Coating: Plain
*85CP Rail Anchors
Reference project: Chile in 2018
Material: Alloy spring steel
Product properties: Hardness HB300-380
Coating: Plain
* 115RE Rail Anchors
Reference project: Chile in 2018
Material: 65Mn, 60si2Mn
Product properties: Hardness HB290-330
Tensile strength:980-1114N/mm2
Coating: Plain
* BS80A Rail Anchors
Reference project: Peru
Material: 65Mn,60Si2Mn,etc.
Product properties: Hardness HB290-330
Tensile strength:980-1114N/mm2
Coating: Plain
Testing facilities
* Special testing tools to test dimensions;
* Testing machines for testing the mechanical properties:
We have producted different kinds of Rail Anchor,Railway Anti Creeper for many years and delivered to customers in different areas around the world. We have plenty of experience and confidence to manufacture the products that you need. NO MATTER Standard parts, Customized parts...we can produce whatever you need !
Rail Anchor,Railroad Track Anchors,Rail Anchor For Railroad,Railway Anti Creeper
TAICANG ZHONGBO RAILWAY FASTENING CO., LTD. , https://www.railfastener.com