Factory Supply Aluminium Alloy Emergency Cut off Valve

We have an excellent design and development team, pursuing the combination of practical value and aesthetic art in the innovative designing of Carbon Steel Knife Gate Valve, F55 Gate Valve, WB Forged Check Valve. What we advocate is the perfect product in cheap price, with extraordinary value and a rich product portfolio, to bring you a perfect shopping experience. We will firmly grasp the development opportunities and growth potential of the industry, and give full play to our unique competitive advantages. Our company attaches great importance to the integration of customer needs and product innovation, and strives for perfection in every aspect of the product. The products have been sold in many countries and regions. We have stabilized foreign market, gradually expanding the international market share.

  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 the era of global economy, we insist on the excellent quality of all products and continue to develop diversified new series of Factory Supply Aluminium Alloy Emergency Cut off Valve in order to make the enterprise sustainable. Should any of these items be of interest to you, please let us know. Looking forward to the future, striking roots in China and facing the world are our development strategy and we will strive to build a manufacturing enterprise to help Chinese manufacturing go global.