威卡隔膜壓力表990.18 德國wika代理-西安秦控】

Model DSS18F

Design Pressure gauge with Bourdon tube per EN 837-1, welded to diaphragm seal

Nominal size (NS) 100

Accuracy class 1.0

Scale range 0 1 to 0 25 bar [0 15 to 0 360 psi]

or all other equivalent vacuum or combined pressure and vacuum ranges

Pressure limitation Steady: Full scale value

Fluctuating: 0.9 x full scale value

Short time: 1.3 x full scale value

Permissible temperature range

Medium

Ambient

Storage

10 80 °C [50 176 °F] for CIP and SIP max. 130 °C [266 °F]

10 40 °C [50 104 °F]

10 60 °C [50 140 °F]

Ingress protection IP65 per IEC/EN 60529

Material

wetted

non-wetted

Diaphragm: Stainless steel 1.4435 [316L]

Diaphragm seal: Stainless steel

Dial, pointer: Aluminium

Case: Stainless steel 1.4301 [304]

Window: Laminated safety glass

Surface roughness

wetted

non-wetted

Ra ≤ 0.76 µm [30 µin] per ASME BPE SF3 (except for weld seam)

Case: Ra ≤ 0.76 µm [30 µin] (except for weld seam)

Level of cleanliness of wetted

parts

Oil and grease free per ASTM G93-03 level F (WIKA standard) (<1,000 mg/m2)

System fill fluid Medicinal white mineral oil KN 92 (FDA 21 CFR 172.878, 21 CFR 178.3620(a); USP, EP, JP)