Check valves FB41

Check valves

PURPOSE AND SPHERE OF APPLICATION

Check valves are intended to prevent backflow of working medium in the process lines at chemical and oil-refining plants, as well as at pulp-and-paper mills and other production facilities using fluid, gaseous as well as corrosive working media.

VALVE DESIGN

VALVE DESIGN

The check ball valve consists of the body (1) and two caps (2) bolted together by stud bolts (8) and sealed with joint gaskets (9). When supplying the working medium into the valve (4) the latter is moving within the stop (3) hole compressing the spring (5) and providing the admission of the medium. When cutting off the medium the valve closes under the action of the spring. To provide the leak-proofness of closed valve the latter is sealed with the valve seal (6). To provide valve capacity for work in corrosive media the seat, the spring and the stem are made of corrosion-resistant steel. The working medium can be admitted to the cap according to the pointer on the valve body. Joint to pipeline is welded. * The valve can be mounted on pipeline in any attitude position required.
* - the flanged and inter-flanged joints are available on the customer's request.

VALVE MATERIAL LIST

No.DesignationMaterials used in various valve versions
    Basic version -01 -02
1 Valve body Steel 321H (X12CrNiTi 18 9) Steel 1023 (C 22) cold-resistant steel
2 Cap
3 Stop
4 Valve Steel 321H (X12CrNiTi 18 9)
5 Spring Wire - Steel 321H (X12CrNiTi 18 9)
6 Valve seal PTFE
7 Nut Steel 1023 (C 22)X13
8 Stud bolt
9 Joint gaskets Steel 321H (X12CrNiTi 18 9)

PERFORMANCE DATA

ТЕХНИЧЕСКАЯ ХАРАКТЕРИСТИКА КЛАПАНА ОБРАТНОГО
Working medium liquid & gaseous
Working medium temperature -40°С ... +160°С
Gate leak-proofness class by GOSТ 9544-93 B (available for leakage)
Climatic version by GOSТ 15150-69 U1 (-40°С...+40°С)
UHL1 (-60°С до +50°С)
Joint to pipeline flanged, welding-end
Total service life, cycles 8000
Total life cycle, years 10 min

OVERAL AND CONNECTING DIMENSIONS OF BALL

OVERAL AND CONNECTING DIMENSIONS OF BALL

Designation PN DN D D1 D2 L Weight, kg
FB41Х20 015 16/25 15 95 17 22 130 1,9
FB41 Х20 020 20 105 20 26 150 2,9
FB41 Х20 025 25 115 25 27 160 3,1
FB41 Х20 032 32 135 33 41 180 5,1
FB41 Х20 040 40 145 41 49 200 6,1
FB41 Х20 050 50 160 51 62 230 8,1
FB41 Х20 065 65 180 67 77 290 10
FB41 Х20 080 80 195 82 92 310 21,5
Designation PN DN D D1 d n L
FB41Х10 015 16/25 15 95 65 14 4 130
FB41Х10 020 20 105 75 150
FB41Х10 025 25 115 85 160
FB41Х10 032 32 135 100 18 180
FB41Х10 040 40 145 110 200
FB41Х10 050 50 160 125 230
FB41Х10 065 65 180 145 290
FB41Х10 080 80 195 160 8 310
FB41Х10100 100 215 180 350