WIKA Model 736.51 Low-Pressure Differential Gauge

Description

WIKA Model 736.51 Low-Pressure Differential Gauge Technical Data and Engineering Selection Guide

WIKA Model 736.51 Low-Pressure Differential Gauge is supplied by SANTAN for replacement, new projects and complete model-code review. The verified product-family information below supports preliminary selection, installation planning and quotation preparation.

Verified Product-Family Specifications

Measurement principle	Capsule-element mechanical differential-pressure indication
Published starting range	0 … 2.5 mbar differential pressure
Media	Transparent, dry, clean, oil- and grease-free gases; verify positive-chamber compatibility
Construction	Stainless-steel case and wetted parts
Ingress protection	IP66 for the published standard family
Applications	Ventilation/heating filters, clean rooms, blower or fan pressure and low-DP process points
Contact option	Switch-contact versions are available for PLC or alarm functions
Final configuration	Range, materials, connection, contact type and mounting must be selected together

Published values describe the product family and remain configuration dependent. Final range, accuracy, materials, pressure or temperature limits, process connection, output, approvals and accessories must be checked against the selected WIKA order code and current data sheet.

Best-Fit Application

Use the 736.51 when ordinary diaphragm or Bourdon gauges do not provide enough sensitivity at very low differential pressure. Typical duties include clean-room pressure, air-filter loading, ventilation ducts, fan/blower supervision and clean dry gas service.

Selection and Installation Notes

Do not assume suitability for wet, dirty or condensing service. Protect the capsule and impulse lines from liquid traps, oil carryover and pressure surges. Confirm the maximum permissible static pressure separately from the small differential range, and specify zero position and mounting orientation.

Quotation and Selection Data Required

Measurement	Minimum, normal and maximum differential pressure; scale units and required accuracy
Static conditions	Maximum working/static pressure, expected overload and pressure direction
Process	Medium, concentration, operating/design temperature and corrosion risk
Mechanical	Process connection, mounting orientation, panel/pipe bracket and dial size
Options	Case filling, switch contacts, output signal, ingress protection and hazardous-area approval
Documentation	Tagging, calibration, material certificates, drawings and inspection requirements

Related Engineering Resources

Official Manufacturer Reference

WIKA official 736.51 product page and data sheet PM 07.08

Request a Quote

Send the complete WIKA model code, quantity and application data to sales@santanfluid.com. For a faster engineering review, use WhatsApp: +86 136 9022 3185 (China) or +62 823 1767 3750 (Indonesia). SANTAN will confirm the selectable configuration before quotation; no online payment is required.

Standard Technical Specification Summary

Use these fields for preliminary selection. Final values depend on the complete manufacturer model code and selected options.

Model	WIKA Model 736.51 Low-Pressure Differential Gauge
Measurement Range	Configuration-dependent; confirm the required span and complete model code.
Accuracy	Configuration-dependent; confirm the accuracy class and calibrated range.
Process Connection	Configuration-dependent; confirm size, rating, standard and wetted materials.
Output Signal	Configuration-dependent; confirm analog, digital and communication requirements.
Certifications	Confirm hazardous-area, functional-safety, sanitary, marine or custody-transfer approvals by model code.
Application Industries	Application-dependent; confirm medium, process conditions and industry requirements.

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