For details please refer attached datasheet. 
Please select variants for correct spare parts required. (as per part number)

OVERVIEW
The Cla-Val Model X105L/X105L2 Limit Switch Assembly is a rugged, dependable and positive acting switch assembly actuated by the opening or closing of a Cla-Val control valve on which it is mounted. The single pole, double throw micro switch can be connected either to open or to close an electrical circuit when actuated. By loosening the allen screw on the actuating collar and raising or lowering the collar on the stem, the X105L is easily adjusted to signal that the valve has fully reached the desired position (open or closed). 

SPARE PARTS (refer variant)

CLA-VAL, Explosion Proof Limit Switch (For X105L2X - require 2 limit switches for each valve)
Switch Type : SPDT, 24VDC, P/N : 34633J

CLA-VAL, Collar with Screw Assy
Material : Brass / SS303, P/N : 20441701E

CLA-VAL, Screw, Machine
Material : SST, P/N : 6795312F (Superseded 6757821B)

CLA-VAL, Washer, Lock
 P/N : 6758423F

CLA-VAL, Nut, Jam
Material : SS303,  P/N : 6781506J

CLA-VAL, Plate, Mounting
Material : SS316,  P/N : 6367402C (Superseded 63674G)

CLA-VAL, Adapter
Material : Brass, P/N : 2838202G, Valve Size : 4" - 16"

CLA-VAL, Bushing, Gland
Material : Brass, P/N : 63398C

CLA-VAL, O-Ring
Material : FPM, P/N : 00951E

CLA-VAL, Bushing
Material : Bronze, Valve Size : 8" - 10", P/N : 6764417K

CLA-VAL, Stem, Actuating
 Material : SS303,  Valve Size : 6" - 8", P/N : 8970103B

CLA-VAL, Fiber Washer
P/N : 6551201H

CLA-VAL, Screw 8-32 x 3/8
Material : SST, P/N : 6824421K