Catalogue 2007 Hydraulics - Simrit - (Version JPG) - Page n° 45 - PDF Catalogue | Technical Documentation

Hydraulics | Rod Seals | Merkel U-Ring T 20

Design notes

Please observe our general design notes in — Technical Manual. Gap dimension

The decisive factor for the function of the seal is the largest gap dimension occurring during operation on the non-pressurised side of the seal — Technical Manual.

Fitting installation

Careful fitting is a prerequisite for the correct function of the seal. — Technical Manual.

Max permissible gap dimension

Profile


	1 MPa	2 MPa	32 MPa	40 MPa
<5,0	0,45	0,4	0,35	-
>5,0 ... 7,5	0,50	0,45	0,4	0,35
>7,5 ... 12,5	0,55	0,5	0,45	0,4
15,0	0,60	0,55	0,45	0,4
>15 ... 20	0,62	0,57	0,47	0,42
>20 ... 25	0,65	0,57	0,47	0,42

The dimensions D1 and DF are to be viewed in connection with the guide elements used.

Tolerance recommendation and dimension D

The admissible gap width, tolerances, guide play and deflection of the guide under load are to be taken into account when designing D2. — Technical Manual.

For non-metallic guide profile 27,5

1 M Pa

d D

32 MPa

d \ D \

40 MPa

d j D j

d D

Nominal

Nomin

Nominal

8 ... 200 f8 H11 8 ... 200

H11

8 . 110

H11

8 ... 110

H11

>110 ... 200 f7 H11 >110 ... 200 f7 H11

For non-metallic guide profile S7,5 <12,5

1 M Pa

2 MPa

32 MPa

40 MPa

Nominal

d D

Nominal

d D

Nominal

d D

Nominal

d D

<380 f8 H10 <220 f8 H10 <170 f8 H10 <180 f8 H10 >380 ... 590 f7 H10 >220 ... 900 f7 H10 >180 ... 950 f7 H10

For non-metallic guide profile S12,5 <15 MPa | 2 MPa

32 MPa

d I D \

40 MPa

...

f7 H10

Nominal

d I d h^"*^

N omin

N ominal

<1000 f8 H10 <310 f8 H10 <1000 f8 H10 <1200 >310 ... 1000 f7 H10

For non-metallic guide profile S15 <25

N ominal

<1200 f8 H10 <400 f8 H10 <1200 f7 H10 <1200 f7 H10

>400 ... 1200 f7 H10

Catalogue 2007 Hydraulics - Simrit - #45

Bumper, O-ring seal, Hydraulic damper, Shaft seal, Mechanical seal