SS304 CF8 CF3 CF8m CF3m SS316 Duplex 2507 2205 1.4462 1.4507 1.4529 F51 F52 F53 4A 5A Double Flanged Butterfly Valves

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  NSV 5A Triple Eccentric Flange Butterfly Valve are suitable for Pulp and paper mills,chemical processes,and seawater service. it is high cracking corrosion resistance to chloride environment,high corrosion resistance to dilute sulphuric acid and phosphoric acid. 
  

• Applicable Standard
  Design Standard:     API 609, MSS SP-67, MSS SP-68, BS 5155
  Face to Face:   API 609, ASME B16.10, BS 5155, EN1092
  End Connection:     ASME B16.5, ASME B16.47
  Inspection and Test: API 598
    
  

• Products Range
  Size:    2" ~ 36" (DN50 ~ DN900)
   Rating:   ANSI 150lb ~ 600lb
   Body Materials:  Duplex Stainless Steel(A995 4A,5A,6A)
   Disc Sealing:    PTFE, Graphite Laminated
   Operation:  Lever, Gear, Electric, Pneumatic, Hydraulic
   

•  Design Features
   Triple eccentric design
   Metal to metal,Rubber,PTFE seated
   Bi-directional service
   Flange Connection
  

STRUCTURAL FEATURES

1. Simple structure, small sizes, light weight and low installation dimensions. According to the types of body connection, they are basically classified to wafer type(including lug wafer type), flanged and welded.

2.Multilayer Hard Seal Structure(See fig．right)
Multilayer hard seal structure is applicable. double and triple eccentric butterfly valves, pressure rating≤CLASS600．And triple eccentric butterfly valve can maintain bi-directional Ieak—tightness.Multilayer sealing ring is composite of stainless steel and nonmetal material. The nonmetal material can be flexible graphite。PTFE or non asbestos material etc. according to the actual working conditions.

3. Low driving moment,easy and quick operation

DO'S & DON'TS BEFORE INSTALL ON PIPELINE

1. These valves are not to be used for End of Line Service.

2. Wear all necessary protective equipment for conducting the work.

3. Never remove or maintain a valve or joint unless the line has been fully drained and de-pressurized.

4. Ensure that the valves are used within the pressure temperature service conditions as per ASME B16.34.Also refer nameplate for pressure temperature limites.In case of additional assistance consult with ALL.

5. Valve handwheels are designed only for operation.The handwheel must not be used for handling the valve. 

FAQ

1.Q: What’s the brand of your company can supply ?

A:NSV or OEM service

2.Q:I want to know how to contact the person in charge.

A: When you call representative call number of company(86-577-67378616), sales team will receive your call if there is no special situation. If you let us know your inquiry, we will put you through to the person in charge. If you need a personal phone number, you have to receive it from the person in charge directly after phone call.

3. Q: What's the valves warranty?
  A: Our valves warranty period should be 18 months from the date of shipment or 12 months after installation, whichever occurs first.

4. Q:How can I get a quote?

A: If you request quote by preparing the product spec you want to request specifically through “Contact us or Feedback” of homepage, we will send reply to you ASAP. If the contents of homepage are not available, you can inquire to us via phone(86-577-67378616) or fax(86-577-67372367).

5.Q:Is there have MOQ?

  A：No.we can accept 1set,but there have additional cost $150.00(process of export) if the order value within $2000.00.

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