NO Part Name Material 1 Seat 2Cr13 2 Body WCB 3 Adjustment ring 2Cr13 4 Recoil plate 2Cr13 5 Flap 2Cr13+PTFE 6 Guide sleeve 2Cr13 7 cap ZG230-450 8 spring 50CrVA 9 Stem 2Cr13 10 Adjust the screw 45 11 Bonnet ZG200-400 Roof Sheet Roll Forming Machine
Roof sheet roll forming machines/Roof sheet forming machine are widely used for building, include Corrugated Roof Sheet Roll Forming Machine,IBR roof sheet roll forming machine, glazed tile roof sheet roll forming machine, Ridge Cap Tile Roll Forming Machine and Double Layer Roll Forming Machine.
These machines are high quality, save power heavy duty and low cost, which are easy to operate.
Specification:
Ps:The above are for reference, we design machines according to your needs.
Working process:
Decoiler - Feeding width- Roll forming machine- PLC control- Hydraulic cutting- Collecting platform
Pictures for machine:
Training and Installation : Roof Sheet Roll Forming Machine,Corrugated Roof Sheet Machine,Roof Tile Making Machine,Wave Panel Roll Forming Machine YingYee Machinery and Technology Service Co.,Ltd , https://www.yingyeemachines.com
1. Leakage Under normal working pressure of the equipment, leakage beyond the permissible level occurs between the disc and the sealing surface of the valve seat. The reasons are: There is dirt between the valve flap and the seat sealing surface. Use a lifting wrench to open the valve a few times to flush away the dirt; the sealing surface is damaged. Should be based on the degree of damage, grinding or grinding after grinding method to repair; valve stem bending, tilting or deflection of the lever and fulcrum, so that the spool and valve disc misalignment. Should be reassembled or replaced; spring elasticity reduced or lost elasticity. Replace the spring and readjust the opening pressure.
2. The frequency jump or vibration of the valve is mainly due to the too high spring stiffness. Should use a spring with appropriate stiffness; improper adjustment of the adjustment ring will make the pressure in the seat back too high. The position of the adjusting ring should be readjusted; the discharge pipe resistance is too large, resulting in excessive discharge back pressure. The discharge pipe resistance should be reduced.
3. The reason why this condition is not turned on when the pressure is set is that constant pressure is not allowed. The amount of spring compression or the position of the weight should be readjusted; the valve flap sticks to the valve seat. The safety valve shall be manually deflated or drained periodically; the leverage of the lever-type safety valve is jammed or the hammer is moved. The weight position should be readjusted and the lever should move freely.
4. The disc is not returned to the seat after discharge. This is mainly caused by the spring bending of the valve stem, the improper installation position of the valve disc, or being stuck. Should be re-assembled.
5. After the exhaust pressure continues to rise This is mainly because of the safety valve discharge capacity of small flat equipment safety, should be re-select the appropriate safety valve; stem centerline is not correct or spring rust, so that the valve flap can not be opened to due The height should be re-assembled valve stem or replace the spring; exhaust pipe cut enough, should be taken to meet the safety discharge area of ​​the exhaust pipe.
6. Less than the specified pressure opening is mainly constant pressure is not allowed; spring aging elasticity decreased. Tighten the adjusting screw or replace the spring properly.
Second, safety return valve parts and materials:
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Raw material
GI, PPGI, Aluminum coils
Material thickness range
0.3-0.8mm
Feeding width
1000mm, 1200mm, 1220mm, 1250mm
Forming speed
25-30m/min(excluding cutting time)
Rollers
18 rows
Material of rollers
45# steel with chromed
Shaft diameter and material
70mm, material is 40Cr
Material of cutting blade
Cr12 mould steel with quenched reatment
Control system
Mitsubishi/Siemens PLC control system with transducer inside
Main motor power
3KW
Hydraulic station power
3KW
Voltage
As your request
1. We offer installation service local in paid, reasonable charge.
2. QT test is welcome and professional.
3. manual and using guide is optional if no visiting and no installation.
Certification and after service:
1. Match the technology standard, ISO producing certification
2. CE certification
3. 12 months warranty since the delivery. Board.
Our advantages:
1. Short delivery period.
2. Effective communication
3. Interface customized.
Safety return valve
First, the safe return valve works: