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SJ Gauge plastic diaphragm seal with corrosion-resistant stub pipe

Flanged Connection with Stub Pipe, Corrosion-resistant Plastic

Model: DIFF-P
  • Upper seat and diaphragm can be enlarged to ensure precision and compliance with pipeline connection standards
  • Applicable for media that are corrosive, viscous, powdery, harmful or toxic to the environment
  • Ideal for industries such as petrochemical, chemical equipment construction, sewage treatment, paper, etc.
  • 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 DIFF-P diaphragm seal features a flanged connection with a stub-pipe design, providing excellent corrosion resistance for challenging process conditions. It is engineered for measuring corrosive, viscous, powdery, hazardous, or environmentally sensitive media. The enlarged upper seat and diaphragm ensure accurate pressure transmission while meeting various pipeline connection standards. Available in PP, PVC, PVDF, and PTFE body materials, with diaphragm options such as PTFE, Hastelloy C276, Titanium, Tantalum, and Monel 400, the DIFF-P adapts to a wide range of corrosive applications. It is widely used in chemical processing, petrochemical plants, wastewater treatment, paper manufacturing, and other demanding industrial environments, offering a stable and reliable pressure-measurement solution.

Specifications

Diameter70 mm, 90 mm, 130 mm, 160 mm
Type of process connectionANSI/ASME B16.5, JIS, DIN 2527
Nominal diameter1/2", 3/4", 1", 1 1/4", 1 1/2", 2"
Instrument connection1/4", 3/8", 1/2"
PT, G, NPT, M
Scale ranges70 mm:
Pressure gauge: 0 … 4 bar to 0 … 10 bar
Transmitter: 0 … 0.4 bar to 0 … 10 bar
90 mm:
Pressure gauge: -1 … 0 bar to -1 … 10 bar
Transmitter: 0 … 0.01 bar to -1 … 10 bar
130 mm:
Pressure gauge: 0 … 0.25 bar to -1 … 10 bar
Transmitter: 0 … 0.01 bar to -1 … 10 bar
160 mm:
Pressure gauge: 0 … 0.1 bar to -1 … 10 bar
Transmitter: -0.05 … 0.05 bar to -1 … 10 bar
or all other equivalent vacuum or combined pressure and vacuum ranges
MaterialUpper 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℃ ... 80℃ (PVC/PP), -40℃ ... 140℃ (PVDF), -200℃ ... 260℃(PTFE)

Downloads

English

SJ_DIFF-P_cc_(en)_plastic_diaphragm_seal

Traditional Chinese

SJ_DIFF-P_cc_(ch)_plastic_diaphragm_seal

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