Bellows Water Pump Mechanical Seal E-5/8 E-3/4 E-1 "EA520-5/8 EA520-3/4 EA520-1"

Model	d1(inches)	d7	d3	d6	d2	11	13
E-5/16"	7.925	25.400	27.00	16.00	20.63	24.60	8.0
E-3/8"	9.520	22.225	23.80	14.30	17.42	22.22	6.2
E-1/2"	12.700	25.400	26.97	17.45	20.63	22.80	6.2
E-5/8"	15.875	30.100	30.94	20.63	23.80	26.50	8.7
E-5/8"H	15.875	31.750	30.94	20.63	23.80	30.00	10.3
E-5/8"K	15.875	31.750	30.94	20.63	23.80	28.50	10.3
E-3/4"H	19.050	34.925	34.11	23.80	26.87	30.00	10.3
E-3/4"C	19.050	34.925	34.11	23.80	26.87	28.50	10.3
E-1"	25.400	41.275	42.85	30.15	33.33	31.73	11.1
E-11/8"	28.575	44.45	46.00	33.50	36.50	31.75	11.1

Technical Parameters

Materials

Preperation:
1. Shaft Outside Diameter is within tolerance +-0.05mm
2. Shaft run out <0.1mm
3. Shaf end float <0.13mm
4, No sharp edges on the shaft over the o ring
Note:
During the installation,don't scratch or damage the o ring.lf anything is damaged,please contactwith Us to replace a new one.
Installation in strucstions:
1. The full set of cartridge seal is cleaned and exactly passed leakage examine before sale.Inorder to avoid damage,don't disassemble and clean the parts again before fixing.

2 The fitting allowance between the seal and shaft is dl h6 0.8,and there should be leading-inedge at the end of shaft.The outside diameter of shaft at the position of screw should be 01 0.2mm smaller,resisting the screw over-tighten.Lubricate the shaft with oil

3. Place the cartridge seal into the pump chamber,then:
A: Tighter four screw bolts of flanges,ensuring the medium leading in hole"G"at the top Position
B : Tighter four set screws and position the shaft sleeve on the shaft.
C: Remove four gauge plates.Please keep them and they wil be used in future installation and
disassemble.
D: Connect the medium lead_in pipe with hole"G"in order to flush away the friction heat and
flushing the seal chamber when pump running.
Note:
ter complete the installation,turning the shaft by hand to check for the rotationi he shat could not rotate smoothily,seal had been improperly installed.

We would like lo sincerely ooperale with Clients to supply high qually products and senice We beleve in establishing a long:erm cooperalive relalionshipis lhe key to suceess