Pulsafeeder PULSAR 25HJ - APPENDIX IV BOLT TORQUE REQUIREMENTS; Metal Construction; Plastic Construction

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14. APPENDIX IV
BOLT TORQUE REQUIREMENTS
Metal Construction
Pump Model / Piston Size
Head
Size
Head Bolts
Tie bar Bolts
No. Bolts &
Size
Torque
No. Bolts &
Size
Torque
N-
m
Ft–
lbs.
N-
m
Ft–
lbs.
25HJ, 25HL / 6mm
A
(6) M10 x 1.5
39
45
(4) M8 x 1.25
8
6
25HJ / 10mm
A
(6) M10 x 15
39
45
(4) M8 x 1.25
8
6
25HL, 55HL / 10mm
B
(6) M12 x 1.75
68
50
(4) M8 x 1.25
8
6
25HJ, 25HL, 55HL / 13mm
B
(6) M12 x 1.75
68
50
(4) M8 x 1.25
8
6
25HJ / 19mm
B
(6) M12 x 1.75
68
50
(4) M8 x 1.25
8
6
25HL, 55HL / 19mm
C
(6) M10 x 1.5
39
29
(4) M8 x 1.25
8
6
25HJ, 25HL, 55HL / 30mm
C
(6) M10 x 1.5
39
29
(4) M8 x 1.25
8
6
25HJ / 40mm
C
(6) M10 x 1.5
39
29
(4) M8 x 1.25
8
6
25HL, 55HL / 40mm
D
(6) M8 x 1.25
20
15
(4) M8 x 1.25
8
6
25HJ, 25HL, 55HL / 50mm
D
(6) M8 x 1.25
20
15
(4) M8 x 1.25
8
6
Plastic Construction
Please note that torque values for plastic heads are given in N-centimeters and inch-lbs
Pump Model / Piston Size
Head
Size
Head Bolts
Tie bar Bolts
No. Bolts &
Size
Torque
No. Bolts &
Size
Torque
N-
cm
In–
lbs.
N-
cm
In-
lbs.
25HJ / 6mm
A
(6) M10 x 1.5
850
75
(4) M8 x 1.25
250
22
25HJ / 10mm
A
(6) M10 x 1.5
850
75
(4) M8 x 1.25
250
22
25HL, 55HL / 10mm
B
(6) M12 x 1.75
850
75
(4) M8 x 1.25
250
22
25HJ, 25HL, 55HL / 13mm
B
(6) M12 x 1.75
850
75
(4) M8 x 1.25
250
22
25HJ / 19mm
B
(6) M12 x 1.75
850
75
(4) M8 x 1.25
250
22
25HL, 55HL / 19mm
C
(6) M10 x 1.5
850
75
(4) M8 x 1.25
250
22
25HJ, 25HL, 55HL / 30mm
C
(6) M10 x 1.5
850
75
(4) M8 x 1.25
250
22
25HJ / 40mm
C
(6) M10 x 1.5
850
75
(4) M8 x 1.25
250
22
25HL, 55HL / 40mm
D
(6) M8 x 1.25
850
75
(4) M8 x 1.25
250
22
25HJ, 25HL, 55HL / 50mm
D
(6) M8 x 1.25
850
75
(4) M8 x 1.25
250
22