
High Temperature Steel A217 Wc6 Wc9 Set Pressure 2-20 Bar Flanged End Bellows Psv Safety Relief Valve for Propane Tank
We ensure that our 3-Way Trunnion Ball Valve, SS904L Gate Valve, Angle Pattern Globe Valve is safe and contributes to improving environmental quality and reducing hazards to human health. 'Quality first, technology first, honesty and trustworthiness' has always been our business tenet. Our company sticks to the corporate spirit of 'focusing on doing one thing well', and phased results have been achieved.
NSV Spring Loaded Safety valve is a valve that act as a protection of equipment from exploding or damaging and it is mainly installed in pressure vessels such as chemical plants, electric power boilers and gas storage tanks.
Safety Valve is a type of valve that automatically actuates when the pressure of inlet side of the valve increases to a predetermined pressure, to open the valve disc and discharge the fluid (steam or gas ) ; and when the pressure decreases to the prescribed value, to close the valve disc again. Safety valve is so-called a final safety device which controls the pressure and discharges certain amount of fluid by itself without any electric power support.
Safety valve support not only the safety of energy industry but also the safety and security of our life.
Applicable Standard
Design Standard: API 520,ASME VIII,API526
Face to Face: MFG STD
End Flange: ASME B16.5
Inspection and Test: API 527
Products Range
Size: 1"x2” ~ 8”x10"(DN25XDN50 ~ DN200X250)
Rating: ANSI 150lb ~ 2500lb
Body Materials: Alloy20(A351 CN7M)
Trim: Alloy20(A351 CN7M)
Design Features
Compliance with API526
Diverse selection of high-alloy material available as standard
Longer lifetime due to hardened discs, partly stellited seats and integrated shielding of the optional bellows
Single trim: Identical internal parts for S/G/L for cost-effective maintenance


The function of the safey valve
1.Nozzle" inside the Safety Valve starts to receive a higher pressure from the inlet side of the valve.
2.When the pressure becomes higher than the set pressure, "Disc" starts to lift and discharge the fluid.
3.When the pressure decreases until the predetermined pressure, the force of the spring closes "Disc".
( Role of the spare parts )
Nozzle --- Pressure Entrance
Disc ----- Lid
Spring --- Pressure Controller
FAQ
1. Q:What's the packing for shipping?
A:Its carton for small valves(sample) and plywood case(don’t to fumigate).
2.Q: How about delivery schedule?
A: Delivery schedule depends on product type. Therefore, please consult with sales team for specific delivery schedule when you inquire quote. The company is making an effort to keep the delivery schedule, which is the promise with customer. The company will improve your satisfaction degree by delivering the necessary product as soon as possible.
3.Q: Do u provide sample,is it free or extra ?
A: Yes, we could offer the sample, due to its value,we can supply free sample that small value and you afford the freight,but also welcome visit our factory to inspect quality.
4.Q:How can I visit your company?
A: We always welcome you to factory. However, your visit intention shall be pure. You can visit factory conveniently by noticing your visit to the department in charge depending on your visit purpose in advance. For the way to factory, please refer to map“About Us” of homepage.
5.Q: What's your payment terms?
A: As our company’s policy, we normally have bellow 3 payment terms,it also can negotiation both parties before confirm order.
1) 100% T/T or West Union in advance that order value within $2,000.00USD.
2)30% T/T advance+70% balance after the shipment for the order value above $2,000.00USD.
3)L/C at sight for the order value above $50,000.00USD.
In order to make the High Temperature Steel A217 Wc6 Wc9 Set Pressure 2-20 Bar Flanged End Bellows Psv Safety Relief Valve for Propane Tank more efficient and convenient, we constantly develop and apply new technologies to improve it. We have professional QC team to ensure your products with high quality and good final property. We've been looking forward that more and more oversea friends join in our family for further development near the future!
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