- A metal upper body that connects to the instrument is tight and durable
- Plastic lower body can protect pressure instruments from corrosive, contaminated or viscous media
- Suitable for paint, electroplating, sewage treatment and the paper industry

Products
Showing 81–96 of 151 results
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Model: DIF-USLPFlanged Connection, Upper Metal, Lower Plastic
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Model: DIF-SFlanged Connection with Dual Diaphragm
- Lower pressure ranges can be measured to meet pipeline connection needs and accuracy
- An alternative when flange diaphragm seal – “I” section type cannot be used due to lack of space
- Applicable for strict working environments including biogas, oil, gas fracking and biodiesel, etc
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Model: DIF-FFlanged Connection with Flush Diaphragm
- One-piece seal design bolts directly to process flange
- Flush-mounted diaphragm prevents clogging of process media
- Used in applications with difficult media such as machine building and automation
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Model: DIF-EFlanged Connection with Extended Diaphragm
- Upper body of the diaphragm seal, the extended diaphragm and the wetted parts can be made of identical or different materials
- As an alternative, the diaphragm and the extended diaphragm can be coated
- Used for contaminated, solidifying, hot or highly viscous media such as thick walled or isolated tanks and pipelines
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Model: DIF-CFlanged Connection, Cell (Pancake) Diaphragm
- Instruments are connected via a side capillary connection and it is an ideal seal for transmitters or DP transmitters
- Be mounted between an open process flange and an optional cover flange
- Used for contaminated, solidifying, hot, or highly viscous media
- An alternative with high compatibility and corresponding specifications to the WIKA 990.28
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Model: DIFF-SFlanged Connection with Stub Pipe, Screwed Diaphragm
- By using diaphragm seals, the measuring instruments can be used at extreme temperatures up to +300 °C
- The double flange diaphragm can increase the size of the upper body and diaphragm to match the piping connection, requirements, and improve accuracy
- Applicable to special working environments and corrosive fluids, such as high pressure, high vibration, and concrete
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Model: DIFF-WFlanged Connection with Stub Pipe, Welded Diaphragm
- Optimizable through the adjustment of the upper seat and diaphragm sizes for precision and to meet the criteria for pipeline connections
- The short pipe length on the lower body can be manufactured to match the piping’s thermal-insulation requirements.
- Durability for working environments using liquids that are high temperature, corrosive, sewage, or prone to crystallization
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Model: DIFF-PFlanged Connection with Stub Pipe, Corrosion-resistant Plastic
- 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.
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Model: DIFF-USLPFlanged Connection with Stub Pipe, Upper Metal, Lower Plastic
- Enlarged upper seat and diaphragm to enhance accuracy and meet the requirements for pipeline connections
- The material of diaphragm or dual diaphragm can be different from the main body
- Ideal for industries such as electroplating, chemical and petrochemical processing, etc.
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Model: DIPIDiaphragm Seal for Pulp and Paper Industry
- External chemical seal with welded diaphragm, designed to suit connections in the pulp and paper industries
- Suitable for attaching to pressure gauges, pressure switches, and pressure instruments
- Designed to be used for highly viscous process media such as pulp and plastic, and chemicals
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Model: DIHODiaphragm Seal for Homogenizer Machine
- Available with process connections in various designs, fitting with all common measuring points
- Designed to prevent aggressive or contaminating medium from entering a conventional pressure gauge
- Widely used on homogenizers such as those found in sanitary applications, production of cosmetics and creams, dairies, and the pharmaceutical industry
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Model: DIHIDiaphragm Seal for Melting High Temperature
- Used to measure molten state process media
- A capillary can be selected, suitable for remote observation
- Widely used in the synthetic chemical, synthetic fiber, and plastic industries
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Model: PRDCDifferential Pressure Gauge, All-metal Media Chamber
- Feature a highly corrosion-resistant all-metal construction and measuring cell protected against tampering
- Used for pump monitoring and control, filter monitoring and level measurement
- For gaseous and liquid aggressive media that are not highly viscous or crystallizing, also in aggressive environments
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Model: PRHDDifferential Pressure Gauge, Double Diaphragm
- High working pressure (static pressure) and high overload safety, selectable ranges up to 30 MPa
- The use of high-quality stainless steel materials and the robust design are geared to applications in the chemical and process engineering industries
- Suitable for liquid and gaseous media in aggressive environments
- Equivalent specifications that closely match the WIKA 732.14
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Model: PRLDDifferential Pressure Gauge, Cryogenic Tanks
- Supports cryotechnology; applicable for measuring low-temperature mediums
- Oil-free is available for measuring special gases such as flammable and explosive gases
- Commonly used to measure closed tank truck liquid levels for oil, liquid nitrogen, and other materials; also useful for filter monitoring
◼️ Fig.1: Differential pressure gauge model PRLD
◼️ Fig.2: With Option valve manifold with working pressure indication -
Model: PRE4.HElectric Contact Gauge, magnetic snap-action
- Stainless steel bezel with glass window, beautiful but still durable
- A variety of contact types to choose from
- Used in chemical, petroleum, metallurgy, machinery and other industries
- Same specifications as WIKA-PGS23
- Switch Contact Pressure Gauge, Euro Warning/Alarm Contact

