Forged Steel Floating Ball Valve
Floating ball valve is suitable for Class150 ~ Class1500, PN16 ~ PN100, JIS 10K ~ JIS 20K all kinds of pipeline, used to cut off or connect the pipeline medium, choose different materials, can be respectively suitable for water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media.This product can be widely used in papermaking, petrochemical, chemical, metallurgy, electric power, environmental protection, petroleum, light industry and other industrial departments of automation control system.
Construction:
Floating ball valve seat selection of polytetrafluoroethylene, polystyrene and other polymer materials, good sealing performance, but the material is relatively soft. Due to the soft material, but to achieve a certain sealing pressure, it is bound to increase the opening and closing torque, in order to improve this situation, the company adopts the double bevel elastic sealing ring or v-groove elastic sealing ring structure design, using the pressure in the pipeline to promote the ball, to help seal. When the medium pressure is small, the sealing ring and the sphere contact area is small, so there is a large sealing pressure, to ensure reliable sealing. When the medium pressure is larger, the contact area between the sealing ring and the sphere increases. Therefore, the sealing ring can withstand large medium thrust without damage. For the ball valve with very low working pressure, considering the medium pressure can not ensure the reliable sealing of the valve seat, and the preload force will be attenuated after long-term use, so for low pressure, ultra-low pressure or vacuum working conditions with ball valve, the valve seat sealing structure with spring loading can ensure long-term reliable sealing of the ball valve.
Features:
Three, Two-Pieces Forged Body
Floating Type, Full & Reduced Bore
Blow-out Proof Stem
Fire Safe Design
Specifications:
Design: ASME B16.34/BS 5351
Face to Face: Manufacturer Standard
Screwed End: ASME B1.20.1
SW, BW, End: ASME B16.11
Test: API 598
Fire Safe Test: API 607/API 6FA
We welcome all the world customers to contact us for more cooperation.
With our years of technical knowledge and experience,we assure you,
Naibang will be one of your best parters in China.
| No. |
Part |
Material |
| 1 |
Bonnet |
ASTM A105+ENP A182-F6,F304,F316,F316L,F304L,F51 |
| 2 |
Seat |
PTFE RPTFE PEEK PPL |
| 3 |
Body Gasket |
PTFE Graphite |
| 4 |
Thrust-Washer |
A105+ENP A182-F6,F304,F316,F316L,F304L,17-4PH,F51 |
| 5 |
Stem |
Stainless Steel |
| 6 |
Stop Nut |
Carbon Steel |
| 7 |
Spring Gasket |
A216-WCB 10256+Cr |
| 8 |
Lever |
ASTM A182-F304,F316 |
| 9 |
Backup Ring |
1015+Cr Carbon Steel+Cr |
| 10 |
Limited Plate |
Stainless Steel |
| 11 |
Positioning pin |
PTFE Graphite |
| 12 |
Packing |
PTFE |
| 13 |
"O"-Ring |
NBR Viton |
| 14 |
Antistatic Spring |
Stainless Steel SS316 |
| 15 |
Ball |
ASTM A105+ENP ASTM A182-F6,F304,F316,F316L,F51 |
| 16 |
Body |
ASTM A105+ENP A182-F6,F304,F316,F316L,F304L,F51 |
| 17 |
Stud |
ASTM A193-B7,B8M,B8,B8M |
| 18 |
Nut |
ASTM A194-2H,2HM,8,8M |
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