Vertical Manual Screw Water Tank Air Tightness Test Machine

This Vertical Manual Screw Water Tank Air Tightness Test Machine completes valve end face clamping and sealing through manual handwheel screw mechanism, with built-in water storage tank. It adopts water submersion bubble method to visually detect the air tightness leakage of the valve, and can finish low pressure gas sealing inspection. With simple structure, no need for external hydraulic power, convenient operation and low cost, it is widely used in small valve factories, maintenance workshops and teaching laboratories. By observing the bubbles in the water, the leakage point can be quickly located, and the basic air tightness test can be completed, which complies with the basic valve air tightness inspection specifications.

Fixed basic parameters sourced from your picture materials:

● Applicable caliber: DN100

● Overall dimension: 1200×900×1300mm

● Total machine weight: 0.3 ton

● Driving mode: Manual operation

Seven Core Differentiated Advantages

1.Manual Screw Clamping Structure, No External Hydraulic Power Required The core feature of Vertical Manual Screw Water Tank Air Tightness Test Machine: it relies entirely on manual handwheel screw mechanism to complete clamping and sealing, no need for supporting hydraulic station, which saves equipment purchase cost and daily maintenance cost, and is suitable for small-scale production sites with limited site conditions.

2.Built-in Integrated Water Storage Tank, Submersion Bubble Visual Detection Equipped with independent water storage tank, the valve is completely immersed in water during the test. Once there is leakage at the sealing surface, weld or valve body, continuous bubbles will emerge from the water. The leakage position and leakage degree can be judged intuitively without additional precision testing instruments.

3.Quick Location of Leakage Points, High Detection Efficiency Different from pressure drop method which can only judge whether there is leakage but cannot locate the position, the water immersion bubble method can directly observe the specific leakage position through bubble generation points, which is convenient for subsequent grinding and maintenance, and greatly improves the efficiency of maintenance and re-inspection.

4.Vertical Compression Structure, Stable End Face Sealing Vertical downward pressing clamping mode, the clamping force acts vertically on the end face of the valve, the force is uniform, and it is not easy to produce eccentric deflection. The sealing fit between the valve end face and the tooling is good, which ensures the reliability of sealing during the air tightness test.

5.Compact Structure, Small Floor Space, Easy to Move The whole machine is lightweight and compact, with a total weight of only 0.3 tons. It can be placed in any corner of the workshop or laboratory, and can be moved and adjusted by manual or small handling tools, which has low requirements for site space and strong site adaptability.

6.Low One-time Investment and High Cost Performance Compared with hydraulic valve test benches, the equipment has no complex hydraulic system and electrical control system, low purchase cost, simple structure and low failure rate, and is an economical testing equipment suitable for small valve factories and individual maintenance workshops.

7.Wide Application Range and Strong Versatility It is suitable for air tightness test of various small caliber valves such as ball valves, gate valves, globe valves and check valves within DN100. It can meet the needs of factory incoming inspection, finished product sampling, maintenance re-inspection and teaching demonstration, with strong practicability.

Complete Technical Parameter Table

Seven Target Application Scenarios

1.Small and Micro Valve Manufacturing Factories: Basic air tightness sampling inspection of small caliber finished valves before delivery.

2.Professional Valve Maintenance Workshops: Leakage point location and performance re-inspection after valve maintenance and grinding.

3.Colleges and Vocational Schools Teaching Laboratories: Valve sealing principle teaching demonstration and student practical training operation.

4.Plumbing and Sanitary Ware Accessories Factories: Routine air tightness inspection of small pipeline valves and water heating fittings.

5.Small Valve Foreign Trade Companies: Simple sampling inspection before product delivery to ensure no leakage of delivered products.

6.Property and Municipal Maintenance Teams: On-site re-inspection of small valves before installation of pipeline maintenance and renovation.

7.Valve Enterprise After-sales Departments: Leakage detection and quality identification of returned faulty valves.

Pre-sales, In-sales & After-sales Service System

Pre-sales Technical Support

Professional technicians communicate one-on-one to confirm the applicable valve type, caliber range and testing requirements; provide equipment placement suggestions and operation process instructions, and issue formal quotation within 24 working hours.

Production & Delivery Service

Strict production according to standard process, appearance and function inspection before delivery. Export products can be packed with shockproof wooden cases, and equipped with Chinese and English operation manuals and maintenance instructions.

After-sales Warranty Service

The whole machine enjoys quality assurance service. We provide long-term operation guidance and technical consultation, supply conventional wearing parts all year round, and assist in troubleshooting and maintenance guidance during use.

FAQ & Official Purchase Guidance

Frequently Asked Questions

Q1: What is the testing principle of this equipment? 

A1: It adopts the classic water immersion bubble method: after clamping the valve and filling low-pressure gas, immerse the valve in water, and judge the sealing performance and specific leakage position by observing whether there are bubbles overflowing.

Q2: Does this equipment need to be equipped with a hydraulic station? 

A2: No, it adopts manual screw clamping, which can be tightened by rotating the handwheel manually, without supporting hydraulic power system, which saves cost and is easy to maintain.

Q3: What size of valves can be tested? 

A3: The standard model is suitable for valves within DN100 caliber, and can test various common small industrial valves such as ball valves, gate valves, globe valves and check valves.

Q4: Can only air tightness test be done, but not hydraulic strength test? 

A4: This model is mainly for low-pressure air tightness inspection. It is a cost-effective basic testing equipment, focusing on sealing leakage detection and leakage point location.

Q5: Is the equipment heavy and convenient to move? 

A5: The total weight of the whole machine is only 0.3 tons, with compact structure. It can be moved by small handling tools, and has low requirements for site space.

Purchase Guidance

Please inform us of the applicable valve type, caliber range and testing requirements. We will provide you with detailed equipment configuration scheme and preferential quotation within 24 hours, supporting small batch procurement and long-term framework cooperation.