Back  |  print

Type 488 - DN 25

Art.-Nr: 4884.8844 
DNI 25 
DNO 40 
Valve size  
Actual orifice diameter d0 [mm] 23 
Actual orifice area A0 [mm2] 415.48 
LEO S/G [inch2] 0,476
LEO L [inch2] 0,468
Dimensions & Weight
Weight [kg]
with bellows  
Center to face [mm] Inlet a   82 
Outlet b   122 
Height (H4) [mm] Standard H max   387 
Bellows H max    
Body material: 1.4404 (316L)
PN / PR Inlet 16 
Outlet 16 
Pressure temperature rating
Minimum set pressure p [barg] S/G/L   0.1 
Min. set pressure
standard bellows
p [barg] S/G/L    
Min. set pressure
low press. bellows
p [barg] S/G/L    
Maximum set pressure p [barg] S/G/L   16 
Maximum set pressure
with special spring
p [barg] S/G/L    
Temperature
acc. To DIN EN
min. [oC]    -45 
max. [oC]    150 
Temperature
acc. To AMSE
min. [oC]    -45 
max. [oC]    150 

Type 488 - DN 25

Art.-Nr: 4884.8844
DNI 25
DNO 40
Valve size
Actual orifice diameter d0 [mm] 23
Actual orifice area A0 [mm2] 415.48

Available Options
  option code  
Surface-package acc.to LSG: Clean Finish 488 B68  
Surface-package acc.to LSG: HyClean Finish 488 B69  
Surface-package acc.to LSG: Sterile Finish 488 B70  
Drain hole: G 1/4 plugged (plug screw 1.4401) J18  
Drain hole: G 1/2 plugged (plug screw 1.4401) J19  
O-ring disc: FFKM "C", (Kalrez) J20  
O-ring disc: "K", CR (Neoprene, Baypren) J21  
O-ring disc: "D", EPDM (Dutral, Keltan, Vistalon) J22  
O-ring disc: "L", FPM ( Viton, Fluorel, Technoflon) J23  
O-ring-disc: "B", IIR (Esso Butyl, Polysar Butyl) J30  
Bonnet: with bore M12 x 1 for lift indicator J38  
Lifting device H4: with adapter M12x1 or M18x1 for lift indicator J39  
Lifting device H8: with adapter M12x1 for lift indicator J40  
Lifting device / cap: H8 in double piston design J41  
Lift stopper J51  
Lifting device H4: Test Gag J69  
Lifting cap H2: Test Gag J70  
Version: oil- and grease-free acc. to LWN 325.03, J85  
Lift indicator M12x1 or M18x1 (d.c.) J93  
.
.