ARI-PRESO®

Pressure regulating valve – straight through with flanges – spring loaded

eClass-No.: 37010908
Application: Industrial installations, processing technology, plant manufacturing, etc.
Medium: Liquids, gas and vapours, steam

• Spring loaded
• Standard bellows seal
• Compact design
• Regulating plug
• Shaft plug guide
• Pressure range:
• 0,5 – 1,5 bar
• 1,0 – 3,0 bar
• 2,0 – 5,0 bar
• 4,0 – 10,0 bar
• Exact and easy adjustment
• Proportional flow characteristic
• Maintenance-free

Pressure regulating valve – straight through with flanges – spring loaded (Grey cast iron, SG iron, Cast steel, Stainless steel)

ARI-PRESO® Pressure regulating valve – straight through with flanges – spring loaded

Figure Nominal pressure Material Nominal diameter
12.753 PN 16 EN-JL1040 DN15-100
22.753 PN 16 EN-JS1049 DN15-100
32.753 PN 16 1.0619+N DN15-100
52.753 PN 16 1.4408 DN15-100

Test: • TA – Luft

Parts
Pos. Sp.p. Description Fig. 12.753 Fig. 22.753 Fig. 32.753 Fig. 52.753
1 Body EN-JL1040, EN-GJL-250 EN-JS1049,

EN-GJS-400-18U-LT

GP240GH+N, 1.0619+N GX5CrNiMo19-11-2, 1.4408
1.2 Seat X20Cr13+QZ, 1.4021+QT
3 Stud 25CrMo4, 1.7218 A4-70
4 Stem guide X20Cr13+QZ, 1.4021+QT
5 Guide housing X20Cr13+QZ, 1.4021+QT X6CrNiMoTi17-12-2, 1.4571
6 x Gasket Pure graphite (CrNi laminated with graphite)
7 x Gasket Pure graphite (CrNi laminated with graphite)
8 Hexagon nut C35E, 1.1181 A4
9 Travel limiter ring ≥ DN40: X6CrNiMoTi17-12-2, 1.4571
11 Bonnet EN-JS1049, EN-GJS-400-18U-LT GX5CrNiMo19-11-2, 1.4408
12 x Plug unit X20Cr13+QZ, 1.4021+QT X6CrNiMoTi17-12-2, 1.4571
14 x Stem unit X6CrNiMoTi17-12-2, 1.4571
15 x Gasket Pure graphite (CrNi laminated with graphite)
16 Spring plate (top) DN15-20: X6CrNiMoTi17-12-2, ≥ DN25: 1.4571 S235JR, 1.0037 X6CrNiMoTi17-12-2, 1.4571
17 Adjusting screw X20Cr13+QZ, 1.4021+QT X6CrNiMoTi17-12-2, 1.4571
21 Lock nut 11SMn30+C, 1.0715+C X6CrNiMoTi17-12-2, 1.4571
26 Spring plate (bottom) DN15-20: X6CrNiMoTi17-12-2, ≥ DN25: 1.4571 S235JR, 1.0037 X6CrNiMoTi17-12-2, 1.4571
27 x Sealing ring CuFA X6CrNiMoTi17-12-2, 1.4571
30 Cap, gastight EN-JS1049, EN-GJS-400-18U-LT GX5CrNiMo19-11-2, 1.4408
37 x Compression spring FDSiCr
└ Spare parts
DN 15 20 25 32 40 50 65 80 100
Face-to-face dimension FTF series 1 according to DIN EN 558 Standard-flange dimensions refer to page 4
L (mm) 130 150 160 180 200 230 290 310 350
H (mm) 230 230 290 300 325 330 400 440 500
Dimensions
Kvs-value (m3/h) 2 2,5 3 5 10 20 22 29 45
Seat-Ø (mm) 21 21 27 31 41 51 66 81 101
Travel (mm) 2 2 2,5 2,5 4 5,5 7 8 10
Leakage rate IV acc. to DIN EN 1349 (≤ 0,01% from the nominal flow)
Weights
12./22./32./52.753 (kg) 3,6 4,1 6,6 7,7 10,4 12,9 20,2 28,9 43,7

Information / restriction of technical rules need to be observed!

Operating and installation instructions can be downloaded at www.ari-armaturen.com. ARI-Valves of EN-JL1040 are not allowed to be operated in systems acc. to TRD 110.

A production permission acc. to TRB 801 No. 45 is available (acc. to TRB 801 No. 45 EN-JL1040 is not allowed.) The engineer, designing a system or a plant, is responsible for the selection of the correct valve.

Resistance and fitness must be verified (contact manufacturer for information, refer to Product overview and Resistance list).

Application
The pressure regulating valve PRESO is a spring loaded differential pressure-control valve. The main applications are:
– Pump protection: PRESO inserted parallel to the pump, this secures a minimum flow.
– Application in bypass lines from users, e.g. heat exchanger in thermal oil systems to sustain a minimum flow.
– Parallel to piping systems to avoid to higher differential pressures.
– Pressure maintaining valve to avoid the flashing in condensate systems.

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