Manhole Cover Aluminum Built-in Respiration Internal Vent Valve / breathing valveS ker
To install at the end of the pipework on the top of the tanker.The downward exit side is 45 degrees angle with horizontal direction to effectively prevent from the dust stacked or entered into the valve.When the valve is in a normally open situation,it will control the vapor output or input into the pipeline work.
. Benefit and Feature
* Hardening Treatment
The whole valve body is passed a special harding process to improve its service life.
* Easy- Operation
Sequence control to control the current valve open to series control the next valve open.
* High Quality
The Stainless steel internal shaft parts ensures its corrosion resistance.
* Light Weight
The main body is made of aluminum alloy,it is more light and sturdy.
* Interlock Control
To interlock with Vapor Adaptor Valve,when the adaptor valve is open,the combing valve should be closed.
| al SpAluminum Pipeline Combing Vent Valveecification |
| Diameter |
3" |
| Working Pressure |
0.63MPa |
| Emergency Open Pressure |
21KPa~32KPa |
| Max. Emergency Vent Rate |
7000m3/h |
| Material |
Stainless Steel |
| Working Temperature |
-50~+150 |
FAQ
1. What is your terms of packing?
A: we pack our goods in neutral white boxes and brown cartons.
2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery.
3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
4. How about your delivery time?
A: It will take 5-10 days after receiving your advance payment.
5. What is your sample policy?
A: We can supply the sample, but the customers have to pay the sample cost and the feight cost.
6. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
7: How do you make our business long-term and good relationship?
We keep good quality and competitive price to ensure our customers benefit . We respect every customer as our friend and we sincerely do business and make friends with them.
Audited Supplier 
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