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SJ Gauge pressure gauge with corrosion-resistant plastic diaphragm seal

Flanged Connection with Corrosion-resistant Plastic

Model: DIF-P
  • The all-plastic material design is lightweight and can effectively measure acidic and alkaline media
  • Excellent for paint, electroplating, sewage treatment and the paper industry
  • Responsive after-sales service / Customizable
  • High quality / One-year warranty
  • Product images are for reference only. Final specifications are based on the confirmed order.
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Description

The DIF-P is a lightweight, fully plastic flanged diaphragm seal designed for measuring corrosive media such as acids and alkalis. It supports various flange standards (ANSI, JIS, DIN) and can be paired with pressure gauges or transmitters across a wide range of pressure settings. With PTFE or metal diaphragm options, the DIF-P is widely used in painting systems, electroplating tanks, wastewater treatment, chemical processing, and the paper industry. Its corrosion-resistant structure ensures durability and stable performance in demanding environments.

Product Images

Pressure gauge with flange and plastic diaphragm
Pressure gauge with flange and plastic diaphragm

Downloads

English

SJ-Gauge-DIF-P-diaphragm-seal-datasheet-en

Traditional Chinese

SJ-Gauge-DIF-P-diaphragm-seal-datasheet-zh-tw

Specifications

Type of process connectionANSI/ ASME B16.5, JIS, DIN2527
Nominal diameter1/2", 3/4", 1", 1 1/4", 1 1/2", 2", 3", 4"
Instrument connection
  • 1/4, 3/8, 1/2
  • PT, G, NPT, M
Scale ranges - metal diaphragm
  • Pressure gauge:
  • 1/2"、3/4"：0 ... 4 bar to 0 ... 10 bar
  • 1" ... 1 1/4": -1 ... 3 bar、0 ... 1.6 bar to 0 ... 10 bar
  • 2": -1 ... 1.5 bar、0 ... 0.6 bar to 0 ... 10 bar
  • 3"、4"：-1 ... 0.6 bar、0 ... 0.6 bar to 0 ... 10 bar
  • Transmitter:
  • 1/2"、3/4"：0 ... 0.4 bar to 0 ... 10 bar
  • 1" ... 1 1/4": -1 ... 0.6 bar、0 ... 0.25 bar to 0 ... 10 bar
  • 2": -1 ... 0.6 bar、0 ... 0.1 bar to 0 ... 10 bar
  • 3"、4"：-1 ... 0.05 bar、0 ... 0.05 bar to 0 ... 10 bar
  • or all other equivalent vacuum or combined pressure and vacuum ranges
Scale ranges - PTFE diaphragm
  • Pressure gauge:
  • 1/2"、3/4"：-1 ... 5 bar、0 ... 2.5 bar to 0 ... 10 bar
  • 1" ... 1 1/4": -1 ... 1.5 bar、0 ... 1.6 bar to 0 ... 10 bar
  • 2": -1 ... 0.6 bar、0 ... 0.6 bar to 0 ... 10 bar
  • 3"、4"：-1 ... 0.6 bar、0 ... 0.1 bar to 0 ... 10 bar
  • Transmitter:
  • 1/2"、3/4"：-1 ... 3 bar、0 ... 0.4 bar to 0 ... 10 bar
  • 1"...1 1/4": -1 ... 0.6 bar、0 ... 0.1 bar to 0 ... 10 bar
  • 2": -0.05 ... 0.05 bar to 0 ... 10 bar
  • 3"、4"：-0.05 ... 0.05 bar to 0 ... 10 bar
Material
  • Upper body: PP, PVC, PVDF, PTFE
  • Lower body: PP, PVC, PVDF, PTFE
  • Diaphragm: PTFE, Hastelloy C276, Titanium, Tantalum, Monel 400, Nickel 200, Silicone, Viton, 316L+PTFE, 316L+PTFE Coating
Medium temperature0℃ ... 60℃ (PVC), 0℃ ... 80℃ (PP), -40℃ ... 120℃ (PVDF), -200℃ ... 240℃ (PTFE)

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