Edwards STP-iXR1606 - Maximum Torque Predicted and Recommended Securing Bolt for Inlet Port Flange

STP-iXR1606 Turbomolecular Pump
MT-79E-001-D
Page 35
INSTALLATION
3
Pump model STP-iXR1606
Flange type
ISO160F
(with O-ring
groove
*1
)
VG150 ICF203 ISO200F ISO250F
Torque reduction
mechanism
Equipped Equipped Not Equipped Not Equipped Not Equipped
Destructive Torque
[kNm]
20.7 20.7 27.7 27.7 27.7
Base securing
(4 positions)
No Yes No Yes No Yes No Yes No Yes
Recommended bolt
Shape
Standard Standard Standard Standard Standard
Size
M10 M10 M8 M10 M10
Q’ty
8 8 20 12 12
Material
*2
Carbon steel
Alloyed steel
Carbon steel
Alloyed steel
Carbon steel
Alloyed steel
Stainless steel Stainless steel
Strength
*
2
12.9 or more 12.9 or more 12.9 or more 70 or more 70 or more
Special washer
Figure 20 Figure 20 Not necessary Not necessary Not necessary
Pump model STP-iXR1606
Flange type VG200 VG250 ICF253 ICF305
Torque reduction
mechanism
Not Equipped Not Equipped Not Equipped Not Equipped
Destructive Torque
[kNm]
27.7 27.7 27.7 27.7
Base securing
(4 positions)
No Yes No Yes No Yes No Yes
Recommended bolt
Shape
Standard Standard Standard Standard
Size
M12 M12 M8 M8
Q’ty
8 12 24 32
Material
*
2
Stainless steel Stainless steel Stainless steel Stainless steel
Strength
*
2
70 or more 70 or more 70 or more 70 or more
Special washer
Not necessary Not necessary Not necessary Not necessary
*1 ISO160F flange with torque reduction mechanism equips the o-ring groove for seal on the surface. Do not use O-ring with
centre ring. Use the supplied O-ring.
*2 Refer to ISO898-1 (JISB 1051), ISO3506 (JISB 1054).
Table 7 - Maximum torque predicted and recommended securing bolt for inlet port flange