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Clean Service

Type 481

Safety valves from the Clean Service product group were specially developed for the food, beverage, and pharmaceutical industries and meet all the relevant standards and regulations such as DIN 11866 or ASME BPE. With a low deadspace inlet area, the unique LESER HyTight assembly, and the optional pneumatic lifting device you have very good cleanability (CIP, SIP). With a large selection of aseptic connections (threaded, flanged, or clamped) the valve can be optimally fitted to different requirements.

Approvals

Industries

  • Food and Beverage Industry
  • Pharmaceutical Industry
  • Chemical Industry
  • Petrochemical Industry
  • Cosmetic Industry
  • Special Processes
Product info Metric unit US unit

Key feature

Small capacity at high set pressure

Small capacity at high set pressure

Nominal diameter inlet

DN15  -  DN25 3/4"  -  1"

Nominal diameter outlet

Orifice

0,5 x D 0,5 x D

Pressure

Actual orifice diameter d0

10 mm 0,394 in

Actual orifice area A0

78,5 mm² 0,122 in²

Pressure

0,1  -  68 bar 1,5  -  986 psig

Temperature acc. to DIN EN

-45  to  +250 °C -49  to  +482 °F

Body material

1.4404

SA 479 316L

KUB-Materials

Valve connection

Clamps acc. to ASME BPE, DIN 32676 or ISO 2852
Threaded connection acc. to DIN ISO 228 or ASME B 1.20.1, Aseptic clamps acc. to DIN 11864 T1 Series A or B (with nut) or DIN 11851, Neumo-Sterile thread (with nut)

Clamps acc. to ASME BPE, DIN 32676 or ISO 2852
Threaded connection acc. to DIN ISO 228 or ASME B 1.20.1, Aseptic clamps acc. to DIN 11864 T1 Series A or B (with nut) or DIN 11851, Neumo-Sterile thread (with nut)

Bellows

Type of loading

Spring loaded

Spring loaded

Approvals

PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC

PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC

Specials

Designed and manufactured acc. to: DIN 11866, ASME BPE, EN 1672-2, DIN ISO 14159, USP class VI and FDA 21 CFR

Designed and manufactured acc. to: DIN 11866, ASME BPE, EN 1672-2, DIN ISO 14159, USP class VI and FDA 21 CFR

Feature Option Code Schematic drawing
Disc

Soft seal CR „K” 

J21

Soft seal EPDM „D” 

J22 (Standard)

Soft seal FFKM „C” 

J20

Soft seal FKM „L” 

J23

Soft seal BR „N” 

J30

Bellows    
Caps and levers

Caps H2

Packed lever H4

Pneumatic lifting device H8

Pneumatic lifting device double piston design H8

J41

Test gag

caps H2

J70

lifting device H4

J69

 
Lift indicator    
Connections

Clamp connection: DIN 32676, ASME BPE, ISO 2852 
(combinations on request or in catalog)

diverse

Threaded connection: DIN ISO 228, ASME B 1.20.1, DIN 11864, DIN 11851 or Neumo-Connection
(combinations on request or in catalog)

diverse

 
Connections outlet    
Free of oil and grease

J85

LESER Surface package

clean finish

B50

hyClean finish

B51

sterile finish

B52

 
Special materials

Hastelloy® C4/ 2.4610

Monel® 400/ 2.4360

Duplex / 1.4462

Documentation    
Balanced Piston    
   
   
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