Norgren XSZ User Manual

3/2 way fail-safe safety valve, solenoid actuated

For mechanical presses and other safety applications

Double valve control system, inherently fail-safe without residual pressure

Dynamic self monitoring With the appropriate application, performance

level „e” (cat. 4) of DIN EN ISO 13849-1 is achieved for the safety function “Pressure building up from ‘1’ to ‘2’ and pressure dropping from ‘2’ to ‘3’”. DGUV, OSHA, CSA and other approvals

For use with pneumatic clutch and brake systems and other 3-way safety functions

Fast exhaust capability Improves safety and reduces downtime Quick and easy adjustment of ‘overlap’

on mechanical presses

XSz 8 ... XSz 50

G 1/4 ... G2, 1/4 ... 2 NPT

No additional electrical monitoring required XSz safety valves are also available as 5/2 valves

(DN8 & 10) and pneumatically operated (DN10)

Technical features

Medium:

Compressed air, ﬁltered ≤ 50 µm, lubricated or non-lubricated Suitable oils: Shell Tellus S2 MA 32, ExxonMobil Febis K 32 or comparable oil with DVI values < 8 (DIN ISO 1817) and ISO viscosity class 32-46 (DIN 51519)

Operating Pressure:

2 to 10 bar For more details please see table overleaf.

Temperature range:

-10 to +60°C Air supply must be dry enough to avoid ice formation at temperatures below +2°C

Mounting position:

Preferably vertically

3 (R)

1 (P)

Additional equipment:

Soft clutch module

- documentation no 5.14.320 Soft brake module

- documentation no 5.14.350 Safety silencer

- documentation no

5.14.525 and 5.14.550 Failure indication elements

- documentation no 5.14.420

D 2 (A)

1 1

2 (A )

Materials: Body: aluminium Seals: PUR, NBR

10/14 2002-5313h

Our policy is one of continued research and development. We therefore reserve the right to amend,

N/en 5.14.100.01

XSz 8 ... XSz 50

Technical data

Series Voltage Pressure

range (bar)

XSz 8 *1) d.c./a.c. 3 to 10 77 93 1/4” 1/4” — 1/4” 1,1 24928063052 24928053052

XSz 8 *1) d.c./a.c. 3 to 10 77 98 1/4” 1/4” — 3/8” 1,1 24928083052 24928073052

XSz 10 *2) d.c./a.c. 2 to 10 190 390 1/2” 1/2” (1/2”) 3/4” 2,5 24929323052 24929333052

XSz 10 *4) d.c./a.c. 2 to 10 190 390 1/2” 1/2” (1/2”) 3/4” 2,5 24929303052 24929313052

XSz 20 *2) d.c./a.c. 2 to 8 230 840 1/2” (3/4”) 3/4” 1” 1” 4,7 24930320200 —

XSz 20 *2) d.c./a.c. 2 to 8 230 840 1/2” (3/4”) 3/4” — 1” 4,7 — 24930330200

XSz 20 *4) d.c./a.c. 2 to 8 230 840 1/2” (3/4”) 3/4” 1” 1” 4,7 24930300200 —

XSz 20 *4) d.c./a.c. 2 to 8 230 840 1/2” (3/4”) 3/4” — 1” 4,7 — 24930310200

XSz 32 *2) d.c./a.c. 2 to 8 495 1800 1” 1” 1 1/2” 1 1/2” 7,5 24931050800 24931070800

XSz 32 *2) d.c./a.c. 2 to 8 495 1800 1” 1” 1 1/2” 1 1/2” 7,5 24931060800 *3) 24931180800 *3)

XSz 32 *4) d.c./a.c. 2 to 8 495 1800 1” 1” 1 1/2” 1 1/2” 7,5 24931300800 24931200800

XSz 32 *4) d.c./a.c. 2 to 8 495 1800 1” 1” 1 1/2” 1 1/2” 7,5 24931310800 *3) —

XSz 50 *4) d.c./a.c. 2 to 8 1100 3300 1 1/2” 2” — 2” 15 24932300800 24932200800

XSz 50 *4) d.c./a.c. 2 to 8 1100 3300 1 1/2” 2” — 2” 15 24932310800 *3) 24932180800 *3)

Port sizes in brackets are plugged. * To order please insert voltage requested for each valve. All solenoids are delivered without plugs. *1) XSz 8 valves are delivered with silencer. *2) Valves delivered with integrated silencer and without flange (R ports). *3) With pressure balance Model 1028100. *4) Valves delivered without silencer and with flange.

Flow 1 (P) » 2 (A) (m3/h)

2 (A) » 3 (R) (m3/h)

Port sizes

1 (P) 2 (A) 2-1 (A-1) 3 (R)

Weight

(kg)

Model * G-thread

Model * NPT-thread

Technical data – solenoids

Model Standard voltages Duty cycle Protection class

Model Power

consumption V d.c.

0200 11 W 22 VA 15 VA Form A

0800 16 W 50 VA 27 VA Form A

3052 4,8 W 12 VA 8,5 VA Form B

0200, 0800, and 3052

24 V d.c. and 230 V a.c., other on request

100% ED

IP65

Current V a.c. Inrush Hold

Electrical connection DIN EN 175301-803 (DIN 43650)

Circuit diagrams

Accessories

Series Plug Silencer Integrated silencer Integrated silencer High efficiency silencer

XSz 8 0680003 MB002B (G 1/4), MB003B (G 3/8) — — —

XSz 8 0680003 MB002A (1/4 NPT), MB003A (3/8 NPT) — — —

XSz 10 0680003 — 0016422 — 0016420 XSz 20 0570275 — — 0016622 0016520

XSz 32 0570275 — — 0016622 0016620

XSz 50 0570275 — — — 0016720

Caution: the safety is related to the quality of the silencer, use only Norgren Herion original silencers

Series Flange

XSz 50 0547365 (port P, G1 1/2, and pressure

N/en 5.14.100.02

switches port G1/4)

Our policy is one of continued research and development. We therefore reserve the right to amend,

0545005 (port A, G2, and pressure switches port G1/4)

2002-5313h 10/14

XSz 8 ... XSz 50

Spare Parts

Series Model (G-thread) Model (NPT-thread) Spare parts kits Spare valve without base

XSz 8 24928063053 24928053053 0101534 2493805

XSz 10 24929323053 24929333053 0110641 2493930

XSz 20 24930320201 — 0110649 2494030

XSz 20 — 24930330201 0110649 2494030

XSz 32 24931050801 24931070801 0558631 2494130

XSz 32 24931060801 24931180801 0558631 2494131

XSz 50

XSz 50 24932310801 24932180801 0542576 —

24932300801 24932200801 0542576 —

3 (R)

2 (A)

Solenoids de-energized:

A port is exhausted. P port is closed, no connection from P to A. No residual pressure on port A as port A is freely exhausted through port R. No acting pressure on port A.

1 (P) = Air pressure port / 2 (A) = Power port (clutch / brake) / 3 (R) = Exhaust Norgren Herion XSz Safety valves comply with the Category IV of DIN EN ISO 13849-1, if the operating system has been designed and realised according to Category IV.

3 (R)

2 (A)

Solenoids energized:

Pilots are synchronously energised. Connection from port P to A. Working pressure on A. No passage from P to R. Dynamic self monitoring of both pilot systems, checking each other at each cycle for proper functioning.

3 (R)

2 (A)

Malfunction:

Pilots non-synchronously energised. Dynamic monitor notices failure operation and prevents the pistons from giving connection from P to A. Synchronously port A exhausts through R. No residual pressure remains in the system since P and A are not connected. The pilot line has lost the pressure and is locked.

1 (P)1 (P)1 (P)

10/14 2002-5313h N/en 5.14.100.03

Our policy is one of continued research and development. We therefore reserve the right to amend,

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Norgren XSZ User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual