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Bellows Valve Series

TK-FUJIKIN Bellows Valves are available in variety of models for system versatility and designed to meet UHP system requirements.
Major features of bellows valve offers a long life cycle, excellent purification and minimum particle generation, due to stem support that is located in the outer part, preventing the fiction between the components.
TK-FUJIKIN can provide 4 different types based on the product configuration,
such as Miniature, Forged, Casting and Y-Type bellows valve.

Low Pressure Manual Bellows Valve - 65A ~ 500A (ABV)

■ Cast steel valves suitable for works demanding strength, shock resistance, elongation and heat resistance.
■ The valve seat is designed to produce less dust and gas residue. 
004-Low Pressure Manual Bellows Valve - 65A ~ 500A (CASTING A TYPE).gif
Major Specifications
Size 65A 80A 100A 125A 150A 200A 250A 300A 350A 400A 450A 500A
Cv Value 81 132 200 302 434 772 1200 1600 2000 2650 3100 3400
Orifice Size 65 80 100 124 148 200 250 300 350 400 440 490
Max. Working Pressure (G.) 1MPa
Max. Working Temp. -10℃ ~ 80℃
Internal Leakage Allowance (He)
Test Pressure ≤ 1×10-2 Torr
Holding Time ≥ 30 sec.
1x10-6Pa · m3/s
External Leakage Allowance (He)
Test Pressure ≤ 1×10-2 Torr
Holding Time ≥ 1 min.
1x10-6Pa · m3/s
Particle Inspection (EP only)
Pressure : 60~80psi N2 Gas
Sample Volume : 1CFM
0.1㎛ and Larger
No count
Product Grade
GRADE AP BA EP
Inner
Surface
Roughness
Ry ≤ 25㎛
Cut off Length : 2.5mm
Measuring Length : 12.5mm
Ry ≤ 3.0㎛
10 μinch Ra(Avg.)
Cut off Length : 0.8mm
Measuring Length : 4mm
Ry ≤ 0.7㎛
5 μinch Ra(Avg.)
Cut off Length : 0.25mm
Measuring Length : 1.25mm
Polishing Machining Finish Machining Finish Electro Polishing Finish
Material
NO. NAME MATERIAL
1 Body SCS16
SCS13
2 Disk PTFE
3 Bellows Stainless Steel 316L
4 Handle SCS13
Ordering Number
MATERIAL SIZE CONNECTION GRADE
S SCS16 65 65A TW Butt Weld AP AP Grade
4S SCS13 80 80A FL Flange(JIS 10K) BLANK BA Grade
- - 100 100A - - P EP Grade
- - 125 125A - - - -
- - 150 150A - - - -
- - 200 200A - - - -
- - 250 250A - - - -
- - 300 300A - - - -
- - 350 350A - - - -
- - 400 400A - - - -
- - 450 450A - - - -
- - 500 500A - - - -

MODEL CONNECTION SIZE A B C D
Butt Weld 65A 416 68 347 160
80A 441 80 381 200
100A 492 94 476 200
125A 556 111 616 300
150A 606 126 632 300
200A 795 157 847 400
250A 1022 190 1085 450
300A 1100 216 1228 500
350A 1187 241 1286 710
400A 1314 268 1318 710
450A 1200 305 1454 800
MODEL CONNECTION SIZE A B C D
Flange 65A 216 87.5 367 160
80A 241 92.5 394 200
100A 292 105 487 200
125A 356 125 630 300
150A 406 140 646 300
200A 495 165 855 400
250A 622 200 1095 450
300A 698 222.5 1235 500
350A 787 245 1290 710
400A 914 280 1330 710
450A 1040 310 1579 800
500A 1040 338 1630 800