High Pressure Power Station Check Valve

Model NO.: API 6D
Flow Direction: Unidirection
Standard: ANSI
Application: Industrial Usage, Water Industrial Usage, Household Usage
Size: 2′′-64′′
Class: 150lbs-2500lbs
Trademark: FYV
Transport Package: Plastic+Plywood Case
Specification: API/ISO/CE
Origin: China
HS Code: 8481804090
1. High pressure check valve.
2. API 600, E101 design.
3. Pressure seal design
Standards

1. Design and manufacture: API600, ANSI B16.34, E101
2. Face-to-face/end-to-end: ANSI B16.10, E101
3. Butt-welding Design: ANSI B16.25
4. Pressure-temperature rating: ASME B16.34, E101.
5. Inspection and test: API598, E101



Material

1. Body: WCB, WC1, WC6, WC9
2. Seat: 15CrMoA, 12Cr1MoVA
3. Disc: WCB, WCI WC6, WC9
4. Stem: WCB, WCI, WC6, WC9
5. Sealing ring: Soft steel or reinforced flexible graphite


Description

1. Middle cavity of valve adopts hte pressure sealing strucuture, the high medium pressure, the better sealing property.
2. Two end of branch pipe is welding connection. It is suitable for different connection requirement.
3. The withstand pressure parts of valve chooses the excellent alloy steel. It has the advantages such as good high temperature performance, high bearing pressure, safe and reliable property.
4. Sealing face of valve flap and valve base adopts the STL cobalt base hard alloy welding to form. The sealing face hardness is high and it has advantages of anti-abrasion, anti-high temperature, anti-corrosion, scraping proof and long service life.
5. Valve flap turns around the pipe out valve base. It can reduce the impulse when closing.
6. Pin structure is installed inner. It can reduce the leakage.


 
Design standard: API 6D
Length of structure: API 6D/ASME B16.10.
Flange connecting end: ASME B16.5/ASME B16.47
Butt welding connecting end: ASME B16.25/ ASME B31.8
Fireproof test: API 607/API 6FA
Inspection and test: API 6D
Pressure and temperature rating: ASME B16.34
Product scope: NPS 1-1/2″~NPS 60″, CL150~CL2500
Main body material: WCB, LCB, WCC, CF8, CF8M, etc.
Valve seat material: PTFE, RPTFE, NYLON, DEVLON, , PEEK, etc.
Drive device: Handle, worm wheel, electric, pneumatic, etc.

Main Feature
Urgent grease injection device
According to customer s' requirement, the trunnion ball valves made by our company are provided with devices for urgent grease injection, which are on both the stem and seat for the trunnion ball valves of DN >150mm (NPS), and in the body cavity for the valve of DN < 125mm. When the O ring of stem or the body seat ring is damaged due to accident, the medium leakage between body and stem can be prevented by injecting the sealing grease through the device.
Double-block and bleed functions
In general, our company's trunnion ball valve features the front ball sealing design structure. Each seat of the ball valve can separately cut off the medium at both inlet and outlet of the valve to realize double-block functions. When the ball valve is closed, body cavity and two of the body ends can be blocked with each other even if both the inlet and outlet are under pressure, when the medium left in the body cavity might be bled through the relief valve.
Fire safe design
With the valve heated in a fire application, the non-metal material parts such as seat sealing ring of PTFE, O ring for the stem, and sealing gasket for body and bonnet, might be damaged due to high temperature. Our company's special design of auxiliary metal to metal or the graphite seal is provited fo rthe trunnion ball valve to effectively prevent both internal and external leakage of the valve. As required by customers, our company's fire safe design for the trunnion ball valve meets the requirement of API 607, API 6Fa, BS 6755 and JB/T 6899.
Self-relief in the body cavity
As the liquid medium left in the body cavity gasifies due to increased temperature, the pressure in the body cavity becomes abnormally higher, when the medium itself in the cavity would propel the seat and self-relieves the pressure to ensure the safety of valve.

Our Advantages:
1. We Are Factory: FYV has 3 production bases and 1 foundry which located in Wenzhou, Shanghai and Lishui city of China. The Factory Size in Square Meters: 110, 000. FYV has over 600 staff members, more than 60 technical engineers, a digital process center and more than 350 sets of various middle and large equipments. The annual sales revenue reaches above $80 million US Dollars.
2. Regional Sales: We provide specialized sales service refers to different kind of region all over the world. Each sales team member is good at the local language and well experienced to the responsible market. For example: Russian, German, Spanish, Japanese, etc.
3. Low MOQ: Our factory owns the casting company by itself. We are always ready for providing the sample and producing some small orders, in order to meet the business well.
4. OEM Accepted: We can make the products with the client's demand standard or the custom requirement.
5. Complete Service: We are always ready to hear from you, be responding to your enquiry immediately. Our trade manager is always online for you.
6. Good Quality: We have strict quality control system and amounts of testing equipments for different kind of valve, such as size, pressure, working environment etc. We are winning the market reputation with the time goes by.
7. Quick Delivery: We have the large stock for some hot products.
8. Competitive Prices: We are the manufacturing company which not only has our own manufacturing workshop, but the casting company as well.
No. Parts Name Materials
Carbon Steel   Low Tem. Steel   Stainless Steel
1 Body ASTM A216-WCB ASTM A352-LCB/LCC ASTM A351-CF8/CF8M
2 Fire safe packing Graphite Graphite Graphite
3 O-ring NBR/Viton Viton Viton
4 Spring seat ASTM A105+ENP ASTM A350-LF2+ ENP ASTM A182-F304/F316
5 Spring 17-7PH/Inconel 17-7PH/Inconel 17-7PH/Inconel
6 Gasket ASTM A105+ENP ASTM A350-LF2+ ENP ASTM A182-F304/F316
7 Adjusting ring ASTM A105+ENP ASTM A350-LF2+ ENP ASTM A182-F304/F316
8 Seat ring ASTM A105+ENP ASTM A350-LF2+ENP ASTM A182-F304/F316
9 Seat PTFE/RPTFE/NYLON PTFE/RPTFE/NYLON PTFE/RPTFE/NYLON
10 Trunnion ASTM A105+ENP ASTM A182-F304 ASTM A182-F304/F316
11 Screw ASTM A193-B7/B7M ASTM A320 L7 ASTM A193-B8/B8M
12 Drain plug ANSI 1045 ASTM A182-F304 ASTM A182-F304/F316
13 Sliding bearing 304+PTFE 304+PTFE 304+PTFE/316+PTFE
14 Ball ASTM A105+ENP ASTM A350-LF2+ENP ASTM A182-F304/F316
15 sealant injection ANSI 1045 ASTM A182-F304 ASTM A182-F304/F316
16 Sliding bearing 304+PTFE 304+PTFE 304+PTFE/316+PTFE
17 Stem ASTM A182-F6a ASTM A182-F304 ASTM A182-F304/F316
18 Packing Graphite Graphite Graphite
19 Gasket 304+Graphite 304+Graphite 304+Graphite/316+Graphite
20 Gasket 304+Graphite 304+Graphite 304+Graphite/316+Graphite
21 Bonnet ASTM A216-WCB ASTM A352-LCB/LCC ASTM A351-CF8/CF8M
22 Bolt ASTM A193-B7/B7M ASTM A320 L7 ASTM A193-B8/B8M
23 Nut ASTM A194-2H/2HM ASTM A194 4 ASTM A194-8/8M
24 Packing case ANSI 1025 ASTM A182-F304 ASTM A182-F304/F316
25 Screw ASTM A193-B7/B7M ASTM A320 L7 ASTM A193-B8/B8M
26 Fire safe packing Graphite Graphite Graphite
27 Pin ANSI 1045 ANSI 1045 304/316
28 Gland ASTM A105 ASTM A350-LF2/LF3 ASTM A182-F304/F316
29 Release valve ANSI 1045 ASTM A182-F304 ASTM A182-F304/F316


High Pressure Power Station Check Valve 		 
   
           
     
       
     
         
       
           
     
           
     
     
   
         
   
           
       
         
       
       
   
 
No.
Accessory Name		 Material  
1- Body WCB/WC1/WC6/WC9
2-Sealing ring Graphite
3-Bonnet WCB/WC1/WC6/WC9
4-Disc A105/25/12CrMoVA
5-Nut 35CrMoa/25Cr2MoV
6-Rocker WCB/WC1/WC6/WC9
7-Sell the post A105/25/15CrMoa/12CrMoVA
8-Stud 35CrMoa/25Cr2MoV
9-Seat A105/25/15CrMoa/12CrMoVA

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