Siemens SITRANS P - Page 79

Construction for level
Weight
• In accordance with EN (pressure
transmitter with mounting 󹪞ange,
without tube)
Approx. 11 … 13 kg (24.2 … 28.7 lb) with aluminum enclosure
Approx. 13 ... 15 kg (28.7 ... 33 lb) with stainless steel enclosure
• In accordance with ASME (pressure
transmitter with mounting 󹪞ange,
without tube)
Approx. 11 … 18 kg (24.2 … 39.7 lb) with aluminum enclosure
Approx. 13 ... 20 kg (28.7 ... 44 lb) with stainless steel enclosure
Material
• Wetted parts materials
Plus side
• Seal diaphragm on the mount‐
ing 󹪞ange
Stainless steel, mat. no. 1.4404/316L, Monel 400, mat. no. 2.4360, Alloy B2, mat. no.
2.4617, Alloy C276, mat. no. 2.4819, Alloy C22, mat. no. 2.4602, tantalum, PTFE
• Sealing surface
Smooth as per EN 1092‑1, form B1 or ASME B16.5 RF 125 … 250 AA for stainless steel
316L, EN 2092‑1 form B2 or ASME B16.5 RFSF for the remaining materials
Sealing material in the pressure
caps
• For standard applications
FKM (Viton)
• For underpressure applica‐
tions on the mounting 󹪞ange
Copper
Minus side
• Seal diaphragm
Stainless steel, mat. no. 1.4404/316L
• Pressure caps locking screws
Stainless steel, mat. no. 1.4408
• Locking screw
Stainless steel ISO 3506-1 A4-70
• O-ring
FKM (Viton)
• Non-wetted parts materials
Electronics housing
• Low-copper die-cast aluminum GD-AlSi 12 or stainless steel precision casting, mat.
no. 1.4409/CF-3M
• Standard: Powder coating with polyurethane
D20 option: 2 coats: Coat 1: epoxy-based; coat 2: Polyurethane
• Stainless steel nameplate (1.4404/316L)
Pressure cap screws Stainless steel ISO 3506-1 A4-70
Measuring cell 󹪝lling Silicone oil
• Mounting 󹪞ange 󹪝ll 󹪞uid
Silicon oil or a di󹪜erent design
Process connection
• Plus side
Flange as per EN and ASME
Technical data
8.4 Construction
SITRANS P320/P420
Compact Operating Instructions, 01/2021, A5E38874562-AC 79