ĐỒNG HỒ ÁP SUẤT WIKA 212.53
WIKA BOURDON TUBE PRESSURE GAUGE MODEL 212.53
Thông tin sản phẩm:
Vật liệu: Stainless Steel Case, Process Gauge
Tài liệu: Đồng hồ Wika
ỨNG DỤNG:
- Intended for adverse service conditions where pulsating or vibration exists (with liquid filling).
- Hydraulics and compressors
- Suitable for gaseous or liquid media that will not obstruct the pressure system.
ĐẶC TRƯNG CỦA SẢN PHẨM:
- Vibration and shock resistant (with liquid filling)
- Stainless steel case
- Pressure ranges up to 15,000 psi (1,000 bar)
THÔNG SỐ KỸ THUẬT
Tiêu chuẩn Thiết kế: ASME B40.100 & EN 837-1
Kích thước mặt đồng hồ: 2”, 2½” & 4” (50, 63 & 100 mm)
Độ chính xác:
- 2” & 2½”: ± 2/1/2% of span (ASME B40.100 Grade A)
- 4”: ± 1% of span (ASME B40.100 Grade 1A)
Thang đo:
- Vacuum / Compound to 200 psi (16 bar)
- Pressure from 15 psi (1 bar) to 15,000 psi (1,000 bar)
- Pressure from 15 psi (1 bar) to 10,000 psi (700 bar) – 2” size or other equivalent units of pressure or vacuum
Áp suất làm việc:
- 2 & 2½”: Steady: ¾ full-scale value
- Fluctuating: 2/3 full-scale value
- Short time: full-scale value
Nhiệt độ vận hành:
- Ambient: -40°F to +140°F (-40°C to +60°C) – dry
- -4°F to +140°F (-20°C to +60°C) – glycerine filled
- -40°F to +140°F (-40°C to +60°C) – silicone filled
- Medium: +140°F (+60°C) maximum
Các lỗi nhiệt nhiệt độ: Additional error when temperature changes from reference temperature of 68°F (20°C) ±0.4% of span for every 18°F (10°K) rising or falling.
Weather protection: Weather tight (NEMA 4X / IP 66)
Pressure connection
- Material: copper alloy
- Lower mount (LM) or center back mount (CBM) –
- Lower mount (LM) or lo er back mount (LBM) – 4”
- ⅛” NPT, ¼” NPT or ½” NPT limited to wrench flat area ABS (2” & 2½”) and white aluminum (4”)
Bourdon tube:
- 2” (50 mm) ≤ 870 psi (60 bar): C-shape copper alloy
- 2” (50 mm) > 870 psi (60 bar): Helical copper alloy
- 2½” (63 mm) ≤ 870 psi (60 bar): C-shape copper alloy
- 2½” (63 mm) > 870 psi (60 bar): Helical copper alloy
- 2½” (63 mm) > 6,000 psi (400 bar) : Helical stainless steel
- 4″ (100 mm) ≤ 1,000 psi (70 bar): C-shape copper alloy
- 4″ (100 mm) > 1,000 psi (70 bar): Helical stainless steel
Movement: Copper alloy
Dial: White ABS (2” & 2½”) and white aluminum (4”)
Pointer: Black aluminum
Case: 304 stainless steel with vent plug and stainless steel crimp ring. Suitable for liquid filling.
Case connection sealed with O-ring, (O-ring material dependent on the case fill):
- 2½”: EPDM O-ring for Glycerine case fill; Viton O-ring for Silicone fill
- 4”: EPDM O-ring for Glycerine or Silicone case fill; Viton O-ring for Halocarbon or Fluorolube fill
Window: Polycarbonate with Buna-N gasket
Case fill: Glycerine 99.7% – Type 213.53
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