4884.8852 Leser United States Sales
If you are looking for a reliable supplier where you can purchase the 4884.8852 Clean service safety valve, type 488, you are in the right place. ONRION sells all product groups belonging to the Leser brand in the United States market, with fast delivery times and competitive prices.
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Technical Specification
hyTight, for great performance,
closed spring cover, gastight cap H2,
for vapors, gases and liquids
Technical specification:
Ordercode output, line 1: H03M53N04X00I81A25L96L97H02B69
Ordercode output, line 2: J23H01J85H87A87
Housing material: (H02)
1.4404/316L
NPS 2" nominal input
NPS 3" nominal outlet
Pressure level entry PN 16
Pressure level outlet PN 16
d0 (ASME DIN) [mm] 37.0
outflow rate D/G: 0.70
flow rate F: 0.45
Connection entry (L96)
CO - clamp connection /ISO 2852/ ISO 2037
Port Outlet (L97)
CO - clamp connection /ISO 2852/ ISO 2037
pipe standard entry (H87)
according to ISO 2037/ ASME BPE
Pipe standard outlet (A87)
according to ISO 2037/ ASME BPE
Clamp size inlet/inner diameter 48.6 mm
Clamp size inlet/outside Ø 64.0 mm
Clamp size outlet /inner diameter 72.9 mm
Clamp Dimension Outlet/ Outside Diameter 91.0 mm
Response pressure: 0.25
Pressure unit: mpa-G
Response pressure [bar-g] 2.50
Response pressure in psi-g: 36.26
Cold setting pressure [bar-g] 2.50
Cold setting pressure [psi-g] 36.26
Operating temperature: 138
Temperature unit: °C - centigrade
Operating temperature [°C] 138.00
Operating temperature in °F: 280
Surface package READER: (B69)
hyClean finish
Medium wetted surface:
Inlet: electropolished Ra <= 0.75μm
Bottom plate: electropolished Ra <= 0.75μm
Blowout room surface:
Inner surface: electropolished Ra <= 1.5μm
Weld seam: electropolished Ra <= 3μm
Outer surface: electropolished Ra <= 1.5μm
Soft sealing plate: (J23)
with soft seal FKM “L” (Viton, Fluorel, Technoflon)
Valve treatment: (J85)
Oil and grease-free cleaning for standard requirements
(not for oxygen), incl. white light test
Material quality certificate for: (H01)
Housing — item 1 with material quality certificate 3.1 according to DIN EN 10204
Documentation: (H03)
READER CGA Certificate for Global Application Acceptance Test Certificate 3.1 according to DIN
EN 10204
Documentation: (M53)
Acceptance test certificate 3.1 according to DIN EN 10204: Oil and grease free test acc.
LGS 0210
Documentation: (N04)
Test report special surfaces center roughness value Ra
Tag no., valve 1: SV-41005
Type and location of the day no.: (M25)
Tag with tag (foil/paper)
3.Marking, pos.: Set P.: 0.25 mpa-G
Type and location of 3rd code: (M16)
World shield marking 1st line
General notes
Design according to reader serial no.: 10676136, deviating with a response pressure of
0.25 mpa-G