Standard Pressure Gauges To EN 837-1

Standard pressure gauges to EN837-1

 EN 837-1 Standard Definition

EN 837-1 is a European standard for mechanical pressure gauges

Defines:

Bourdon tube measuring element

accuracy classes

safety design

dial sizes (40mm–250mm)

Used in industrial pressure monitoring systems

Packing &Delivery:

Packing: separate paper box by per unit.

Packing type: polyester bag +paper box, carton box, pallet.

Carton weight: 20-25kg

Lead time: 15-30 days

Product Description:

EN837-1 Standard Pressure gauges can be used in all applications where liquid or gaseous media are not highly viscous and do not attack copper alloys or crystallize. All standard pressure gauges comply with general international recommendations for measuring systems and take requirements for specific applications and technical standards into consideration.

Measuring ranges 0 ... 0.6 bar to 0 ... 400 bar

Applications Building services, apparatus constructions Air-conditioning, Pneumatics, hydraulics, workshop equipment.

Pressure element Bourdon tube and pressure connection of standard EN837-1 pressure gauge are made of stainless steel No. 1.4571. The shell is filled with liquid glycerin for damping vibration. Process connecting pipe thread G1 / 4B can be 1 / 4 ″ NPT, please specify more threaded connections; Bottom or rear lower connections comply with en 837-1. The pointer element of standard en837-1 pressure gauge is made of stainless steel. The dial is made of aluminum, with white background and black scale. Optional: red reference mark. The pointer is made of aluminum and black. Front glass multilayer safety glass. Shell sealing ring: nitrile rubber; Filler plug: Desmopan polyester. Material of release device: nitrile rubber. Pressure compensation membrane with liquid filled safety housing: silicone oil. The general range complies with en 837-1 standard 0 0.6bar to 0 1000bar, other unit systems can be provided. Overvoltage protection standard: 1.3 times. Accuracy: 1.6, in accordance with en 837-1 standard; Level 2.5, for range 0 600bar and 0 1000bar temperature range operating temperature (ambient): - 20+ 60℃; Storage temperature: - 20+ 60℃. Independent installation, with flange for surface installation or din mounting flange for flush installation as required. Liquid filling weight: About 2kg; Liquid filling: about 0.3KG. Special design - pressure limiting to prevent pressure peaks; The test certification of connecting sleeve and measuring gas expansion material complies with en10204 (DIN 50049).

Our factory and Productions:

Industrial Applications of EN 837-1 Pressure Gauges

Hydraulic power units (HPU)

Air compressors

Water pumps

Industrial machinery

Oil & gas pipelines

Marine systems

HVAC systems

How to Select EN 837-1 Pressure Gauge

Step 1: Choose pressure range

Step 2: Confirm medium (gas / liquid / oil)

Step 3: Decide filled or dry type

Step 4: Select connection size

Step 5: Choose accuracy class

Step 6: Choose material (brass / stainless steel)

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FAQ:

What is EN 837-1 standard?

A: EN837-1 specifies the design, materials, accuracy level, shock resistance and safety test methods of spring tube pressure gauges. It is one of the core standards for European pressure gauge manufacturing.

What is Bourdon tube pressure gauge?

A: The Bourdon tube pressure gauge is a product independently developed, certified and manufactured by WIKA in accordance with the standard EN837-1. The Bourdon tube is a radially formed elliptical cross-section tube. The C-type Bourdon tube formed to approximately 250 can be used to measure pressures up to 6MPa. For higher pressures, multiple wound bourdon tubes of the same angular diameter (coil spring type), or vortex coil bourdon tubes of the same plane (vortex tube) can be used. Bourdon tube pressure gauges offer commonly used measuring ranges, process connections, approvals and size ratings worldwide

Why use glycerin filled gauge?

A: for stable reading . 

What is accuracy class 1.6?

A: Allowable error is ±1.6% of full scale

Difference between dry and liquid filled gauge?

A:After filling with oil, the pressure gauge pointer will be more stable and can stabilize quickly to avoid continuous shaking of the pointer that affects the value reading. It is suitable for environments with loud noise or severe system pressure fluctuations. At the same time, oil injection can protect the instrument, extend the life of the pressure gauge, and prevent internal parts from rusting or corroding.

 

 

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