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Central Heating System Manometer

Residential & Commercial Heating

Central Heating System Manometer

A compact, wall-mounted or boiler-fitted manometer keeps homeowners and heating engineers informed of circulating water pressure at a single reference point, with clear color-coded scale zones that make it immediately obvious when the system needs topping up.

ISO9001:2015 CE Certified RoHS Compliant MES Traced Color Zone Dial Compact Case

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Product Introduction

Precision instrumentation engineered for central heating system manometer applications

The Central Heating System Manometer is designed for the specific pressure range and reading habits of residential and light-commercial wet central heating systems, where the person checking the gauge is often a homeowner or building caretaker rather than a trained plant engineer. A clearly color-coded dial — typically red for underfilled, green for correct operating pressure, and red again for overpressure — removes any ambiguity about what action, if any, is required.

Internally, a compact bronze Bourdon tube movement is sized specifically for the low working pressures typical of sealed central heating circuits, giving finer pointer resolution across the narrow 0.5 to 3 Bar band where nearly all meaningful readings occur, rather than wasting most of the dial arc on pressures the system will never see. This focused range means a small pressure change — the kind that indicates a slow leak or the need to top up via the filling loop — is clearly visible rather than lost in a coarse scale.

Every unit is assembled in our 100,000-level clean workshop and calibrated against a certified reference standard before the color zones are precision-printed onto the dial face, ensuring the boundary between the red and green zones aligns exactly with the pressure values stated in the printed specification. Calibration data is stored in our Advanced MES digital tracking system against each unit's serial number.

The compact case is available in both boiler-mounted and remote wall-mounted configurations, with the latter connected by a short flexible capillary or direct pipe run so the gauge can be positioned at a convenient eye-level location away from the boiler cupboard, making pressure checks a genuinely quick and easy habit for building occupants rather than a task requiring a torch and an awkward crouch.

Core Advantages

Engineered for reliability where it matters most

50–63mm
Compact Dial Sizes
±1.6%
Accuracy Class
0.5–3 Bar
Focused Working Range
  • Color-Coded Pressure Zones — Red/green/red scale printing makes correct operating pressure instantly obvious to non-technical users
  • Focused Low-Pressure Scale — Bourdon tube sized for the narrow 0.5-3 Bar band gives fine resolution where readings actually occur
  • Compact, Space-Saving Case — Small case footprint suits boiler cupboards and tight plant room mounting locations
  • Remote Wall-Mount Option — Capillary or direct-pipe connection lets the dial be positioned at convenient eye-level for easy checking
  • Certified Pre-Calibration — Every unit is calibrated against a certified reference before color zone printing to guarantee zone accuracy
  • MES Traced Production — Serial-linked quality data from raw material to shipment for full after-sale traceability

Specifications

Standard technical parameters

Dial Size50mm, 63mm (compact case options)
Accuracy ClassClass 1.6 Full Scale
Pressure Range0-4 Bar with 0.5-3 Bar color-coded operating zone
Bourdon TubePhosphor Bronze
Process Connection3/8" or 1/2" BSPT Bottom Entry
Case MaterialChrome-Plated Brass or ABS Plastic
Mounting StyleDirect Boiler-Mount or Remote Wall-Mount
Remote Connection0.5 m or 1 m Capillary (wall-mount option)
Window MaterialPolycarbonate
Media CompatibilityWater, Water-Glycol Heating Fluid

Technical Summary

Order & production details

MOQ500 Pieces (Standard Range Compact Models)
Lead Time15-20 Days (compact single-movement assembly)
PackagingBulk carton packing for boiler OEM lines; individual boxes for aftermarket
CertificationsISO9001:2015, CE, RoHS Compliant
Raw MaterialsH59 Brass, Phosphor Bronze, ABS Plastic
CustomizationColor zone boundaries, connection thread, mounting style, dial branding
Port of ExportNingbo / Shanghai
Payment TermsT/T, L/C at Sight, Western Union

Our Partners

Trusted by leading brands worldwide

Industrial Applications

Where central heating system manometer performance is mission-critical

Residential Combi Boiler Cupboards

Direct-mounted on the boiler body for quick pressure checks during routine home maintenance

Apartment Building Plant Rooms

Wall-mounted remote dial gives building caretakers an easy check point without opening plant room panels

Underfloor Heating Manifold Cabinets

Confirms circuit pressure at the manifold cabinet alongside flow and return isolation valves

Heating Engineer Service Visits

Fast visual confirmation of system pressure during annual boiler service and safety inspection calls

Small Commercial Heating Plant Rooms

Grouped with other basic plant instrumentation for light-commercial wet heating system monitoring

Technical Highlights & QC

Every unit validated for zero-defect performance

  • Certified Reference Calibration: Each unit is checked against a certified reference standard before color zone printing to guarantee zone boundary accuracy.
  • Color Zone Print Alignment Check: Printed zone boundaries are verified against the calibrated pressure reading to confirm exact alignment on every unit.
  • Low-Pressure Linearity Sweep: Units are stepped through the 0.5-3 Bar working band specifically to verify fine-scale linearity in the zone that matters most.
  • Compact Case Seal Test: Small-diameter case seals are pressure-tested to confirm no leakage at the reduced case volume typical of compact designs.
  • Remote Capillary Fill Verification: Wall-mount capillary versions are vacuum-filled and degassed to guarantee hesitation-free pointer response.
  • MES Serial Tracking: Range, zone configuration, and calibration data are stored digitally against each unit's serial number.

Environment & Media Compatibility

Engineered for demanding operating environments

  • Boiler Cupboard Confined Space: Compact case dimensions suit the tight clearances typical of residential boiler cupboard installations.
  • Water-Glycol Heating Fluid: Wetted brass and bronze components resist the mild glycol-water mixtures used in many modern heating circuits.
  • Seasonal Ambient Swings: Movement and case materials remain stable across the temperature range typical of unheated boiler cupboards and plant rooms.
  • Vibration from Circulation Pump: Compact movement design resists reading disturbance from the small circulation pump typically mounted nearby.
  • Humidity in Utility Cupboards: Sealed case construction resists the moderate humidity common in domestic utility and boiler cupboard spaces.
  • Repeated System Topping-Up: Bourdon tube and connection threads are rated for the repeated minor pressure cycling of periodic filling loop use.

Pro Tips for Longevity

Installation & maintenance best practices

  • Bleed Radiators Before Reading: Bleed trapped air from radiators before taking a pressure reading, as air pockets can cause a misleadingly low indication.
  • Top Up Slowly via the Filling Loop: Add water gradually through the filling loop while watching the gauge to avoid overshooting into the red overpressure zone.
  • Check Pressure When the System Is Cold: Take reference pressure readings with the heating system cold, since pressure naturally rises somewhat when the water is hot.
  • Investigate Repeated Pressure Loss: If pressure regularly drops below the green zone, check for a slow leak rather than simply topping up repeatedly.
  • Mount the Wall Unit at Eye Level: Position the remote wall-mount dial at a comfortable eye-level height to encourage regular, easy pressure checks.
  • Protect the Capillary Run: Keep the capillary connection free of sharp bends when routing from the boiler to a remote wall-mounted dial.

Payment & Logistics

Reliable global supply chain from factory to your site

  • Flexible Payment Terms: We support T/T (30% deposit, balance before shipment), L/C at sight for large orders, and secure B2B trade assurance platforms for new customers.
  • Global Freight Options: Sea freight from Ningbo or Shanghai for bulk orders; DHL, FedEx, or UPS air express for urgent sample and small-batch shipments.
  • OEM Boiler Line Packaging: Bulk tray packing is available for boiler manufacturers integrating the gauge directly onto their assembly line.
  • Full Export Documentation: Commercial invoice, packing list, certificate of origin (CO), material certificates, and CE declaration of conformity provided with every shipment.
  • Sample Lead Time: Standard compact-range samples available within 5-7 working days for rapid boiler OEM qualification.
  • After-Sales Support: Our technical team provides installation guidance and color zone specification documentation for your product literature.

About Us

Zhoushan Jiaerling Meter Co., Ltd. — 20 years of precision manufacturing

Zhoushan Jiaerling Meter Co., Ltd.

Zhoushan Jiaerling Meter Co., Ltd. was established in 2004. It is China Central Heating System Manometer Manufacturers and Wholesale Central Heating System Manometer Factory, which is a high-tech enterprise integrating design, research and development, manufacturing, import and export trade.

The company is located in Zhoushan City, Zhejiang Province, covering an area of 15,000 square meters, equipped with a 100,000-level clean workshop, conventional production and assembly workshop, automated production workshop, new laboratory and comprehensive office building.

After more than 20 years of hard work and development, the company has a stable design and development, production team, and advanced production and testing equipment. The company specializes in the production of various types of pressure gauges with complete specifications, and the annual output of pressure gauges reaches 6 million. In order to further develop, the company not only seeks improvement in technology, but also pays more attention to product quality and after-sales service. The company's purpose is to "regard quality as life, survive by reputation, promote development by technology, and serve customers with high-quality brands". The products are sold all over the world and are well received by domestic and foreign customers.

In 2019, the company participated in the compilation of the standard T/CECS10012-2019 "Gas Heating Hot Water Boiler and Water Heater Water Circuit Components" of the China Engineering Construction Standardization Association.

Under the implementation of modern and digital enterprise management, the company has successfully introduced the advanced MES system in 2023, and the order process is fully visualized to track data, ensuring the continuity of production and improving production efficiency.

The company will continue to adhere to the principles of excellence, accuracy, reliability, continuous improvement, and meeting customer needs, hoping to share harmony and prosperity with friends across the country.

20+
01.Corporate History
15,000M²
02.Factory Area
6,000,000
03.Annual Output (Pieces)
50+
04.Export Area

Honor

Certifications and proprietary achievements

Frequently Asked Questions

Everything you need to know before specifying or ordering

What pressure should my central heating system read?
Most sealed systems should read within the green zone, typically 1.0 to 1.5 Bar when cold; consult your boiler manual for the exact recommended value.
Why does my gauge show red even after topping up?
If the needle sits in the upper red zone the system is overpressurized; this usually requires draining a small amount of water via the radiator bleed valve.
Can this gauge be fitted to any boiler brand?
The standard 3/8" or 1/2" BSPT connection fits most common boiler pressure ports; confirm your specific boiler's connection size before ordering.
What is the difference between boiler-mount and wall-mount versions?
Boiler-mount units thread directly into the boiler body; wall-mount versions connect via a short capillary so the dial can sit at a more visible location.
How often does the color zone printing need to be verified?
Zone printing is fixed at the factory during calibration and does not require field adjustment under normal use.
Can I use this gauge on a system with glycol antifreeze added?
Yes, standard wetted materials are compatible with typical water-glycol heating fluid mixtures used in many residential systems.
What causes central heating pressure to drop over time?
Common causes include a slow radiator valve leak, a weeping pipe joint, or air being vented from an automatic air vent along with a small amount of water.
Is professional installation required?
Installation is straightforward for a qualified heating engineer; DIY installation is not recommended given the plumbing and safety considerations involved.
Can the dial be custom branded for our boiler product line?
Yes, OEM dial printing with your company branding and custom color zone boundaries is available for qualifying order quantities.
What is the expected service life of the gauge?
With normal residential use, the compact manometer typically provides many years of reliable service before recalibration is recommended.

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Ready to Order or Need a Custom Color Zone Configuration?

Tell our engineering team your target operating pressure and boiler connection type. We will configure the right compact central heating manometer for your product line. OEM & ODM branding available with fast sample service.

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