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SJ Gauge corrosion-resistant plastic diaphragm seal with threaded connection

Threaded Connection with Corrosion-resistant Plastic

Model: DIT-P
  • Made of PTFE/PP to resist strong acids and alkalis effectively
  • Separates media from the gauge to prevent internal component damage
  • Ideal for viscous or particle-rich fluids, ensuring accurate pressure readings
  • 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 DIT-P corrosion-resistant diaphragm seal features a metal upper body combined with a plastic lower body, providing excellent chemical resistance and stable pressure transmission. Its dual-diaphragm overload structure withstands sudden pressure spikes, while advanced filling-fluid technology minimizes temperature and static-pressure effects. With a high-strength metal protective housing, the DIT-P is ideal for corrosive fluids, chemical processing, and environmentally hazardous media. Available in multiple diameters (70, 90, 130, 160 mm) and materials such as PP, PVC, PVDF, and PTFE, it supports various threaded and welded connections and can be paired with pressure gauges or transmitters—making it a reliable sealing solution for harsh and corrosive environments.

Product Images

Pressure Gauge with alternative WIKA 990.31 Anti-corrosion Diaphragm Seal
Pressure Gauge with alternative WIKA 990.31 Anti-corrosion Diaphragm Seal
Corrosion-resistant Diaphragm Seal Pressure Instrument
Corrosion-resistant Diaphragm Seal Pressure Instrument
Anti-corrosion Diaphragm Pressure Transmitter
Anti-corrosion Diaphragm Pressure Transmitter
TWM11 assembled with DIT-P diaphragm seal featuring PP upper and PTFE lower materials for corrosive media applications.
TWM11 assembled with DIT-P diaphragm seal featuring PP upper and PTFE lower materials for corrosive media applications.
PTFE wetted diaphragm design improves chemical resistance for pressure monitoring in harsh environments.
PTFE wetted diaphragm design improves chemical resistance for pressure monitoring in harsh environments.
DIN Connector with Corrosion-Resistant PP Construction
DIN Connector with Corrosion-Resistant PP Construction

Downloads

English

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

Traditional Chinese

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

Specifications

Diameter70mm, 80mm, 90mm, 130mm, 160mm
Process connection
  • Male, female, socket welding
  • 1/4, 3/8, 3/4, 1
  • PT, G, NPT, M
Instrument connection
  • 1/4, 3/8, 1/2
  • PT, G, NPT, M
Scale ranges
  • 70 mm
  • Pressure gauge: -1 ... 3 bar, 0 ... 2.5 bar to 0 ... 10 bar
  • Transmitter: -1 ... 0.6, 0 ... 0.3 bar to 0 ... 10 bar
  • 90 mm
  • Pressure gauge: -1 ... 1.5 bar, 0 ... 0.6 bar to 0 ... 10 bar
  • Transmitter: -1 … 0.6, 0 ... 0.1 bar to 0 ... 10 bar
  • 130 mm
  • Pressure gauge: -1 ... 0.6 bar, 0 ... 0.25 bar to 0 ... 10 bar
  • Transmitter: -1 ... 0.6 bar, 0 ...0.1 bar to 0 ... 10 bar
  • 160 mm
  • Pressure gauge: -0.1 ... 0.1 bar, 0 ... 0.1 bar to 0 ... 10 bar
  • Transmitter: -0.05 ... 0.05 bar to 0 ... 10 bar
  • or all other equivalent vacuum or combined pressure and vacuum ranges
Material
  • Upper body:
  • PP, PVC, PVDF, PTFE
  • Lower body:
  • PP, PVC, PVDF, PTFE
  • Diaphragm:
  • PTFE, Hastelloy C276, Tantalum, Titanium, 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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