The gauge glass for boiler listed here carries material Borosilicate glass, model number A0-9,B0-9, documented exactly as the manufacturer publishes it. Made by Qingdao Winton Industrial Glass Co., Ltd. (15 years on the platform, typical reply ≤5h). Quantity and destination market determine the final price — tell us both for a firm quote.
Key Features of This Gauge Glass For Boiler
- Model Number: A0-9,B0-9
- Material: Borosilicate glass
- Warranty: 6months
- Place Of Origin: Shandong, China
- Single Gross Weight: 100.000 kg
- Customized Support: OEM
Technical Specifications
| Warranty | 6months |
|---|---|
| Customized Support | OEM |
| Brand Name | winton |
| Model Number | A0-9,B0-9 |
| Place Of Origin | Shandong, China |
| Material | Borosilicate glass |
| Thickness | 17mm |
| Winth | 30mm,34mm |
| Length | 95-340mm |
| Working Pressure | 4-8MPa |
| Working Temperature | 260-500℃ |
| Category | Transparent |
| Tempered Or Not | Tempered |
| Usage | It is used in lever gauge in boiler for water position |
| Packaging | Carton |
| Grade | Diy, Industrial |
| Packaging Details | bubble papper packing |
| Port Of Dispatch | Qingdao |
| Selling Units | Single item |
| Single Gross Weight | 100.000 kg |
| Supply Ability | 100000 pieces per Month |
Product Details
ilmadur din 7081 a1-a9 / b1-b9 level gauge glass for boiler
Size
![]() ![]() | 1) Three tendons (four grooves) 340 x 34(30) x 17mm; 320 x 34(30) x 17mm; 280 x 34(30) x 17mm; 250 x 34(30) x 17mm; 218 x 34(30) x 17mm; 190 x 34(30) x 17mm; 165 x 34(30) x 17mm; 140 x 34(30) x 17mm; 115 x 34(30) x 17mm; The other size is optional or according to the requirements of customers. Working temperature: 260 °C, Working pressure: 4.0MPa. |
![]() ![]() | 2) Two tendons (three grooves) 340 x 34 x 17mm; 320 x 34 x 17mm; 280 x 34 x 17mm; 250 x 34 x 17mm; 218 x 34 x 17mm; 190 x 34 x 17mm; 165 x 34 x 17mm; 140 x 34 x 17mm; 115 x 34 x 17mm; The other size is optional or according to the requirements of customers. Working temperature: 260°C, Working pressure: 4.4MPa. |
![]() ![]() | 3)Transparent plane 340 x 34 x 17mm; 320 x 34 x 17mm; 280 x 34 x 17mm; 250 x 34 x 17mm; 218 x 34 x 17mm; 190 x 34 x 17mm; 165 x 34 x 17mm; 140 x 34 x 17mm; 115 x 34 x 17mm; The other size is optional or according to the requirements of customers. Working temperature: 260°C, Working pressure: 8.0MPa.
|
Material
Borosilicate glass
Main Composition
1.SiO2: 80±0.5%
2.B2O2: 13±0.2%
3.Al2O3: 2.4±0.2%
4.Na2O (+K2O): 4.3±0.2%
Chemical Property
1.Hydrolytic resistance ISO719-HGB 1 Class
2.Alkali resistance ISO695-HGB 2 Class
3.Acid resistance ISO195-HGB 1 Class
Usage
It is used in lever gauge in boiler for water position.
Product Category
1.Gauge glass mostly divide into these series:
Clear gauge glass
Reflext gauge glass
1) Three tendons (four grooves)
2) Two tendons (three grooves)
2.It is also named:
Reflex Gauge Glass, Sight glass, Reflex Glasses
Reflex sight glass, Spares For level Gauge.
Physical Property
| Level Gauge Glass Physical Property | |
| Testing Item | Standard Rules |
| 1. Appearance | 1) Air bubble: |
| 2. Colour and Lustre | It should be no color and transparent,and with its self tine green is allowed. |
| 3. Water-resistance | Cooked in the water for 5 hours,then weigh up ,then titration with 25ml 0~31 ug/g |
| 4. Alkali-resistance | Cooked in the 0.5N NaoH for 3 hours,then Weigh up,weightlessness should be ≤75 mg/dm2 |
| 5. Temperature-resistance impacts capability | Put it into electric cooker,keep for 7min under the temperature of 260±1,then,put into the water of 20±1,it should not crack |
| 6. Bend-resistance | ≥80 MPa |
Product pictures



Qingdao Winton Glass
1. Providing technical consultation.
2. Samples and freight are free.
3. Special packaging according to request.
4. Providing related qualification documents.
5. Accepting customer's audit on site.
6. Providing shuttle bus service when visiting our factories.
7. Solving the quality matter on production line, providing technical inspection.
8. Solving customer's complaints in time and making advancement.
Qingdao Winton Glass


Qingdao Winton Glass

Customers' Satisfaction Is Very Important to Us
Q1.How fast can I get the quotation?
A:We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.
Q2.How can I get a sample to check your quality?
A:After price confirmation, you can require for samples to check our quality. If you need the samples, and our inventory stocks, some products can supply free samples, but the freight is on your site.
Q3.Can you do the desigh for us?
A:Yes. We have a professional team having rich experience in drawing design and manufacturing. Just tell us your ideal and we will help to carry out your ideas.
Q4.What about the lead time for mass production?
A:Honestly , it depends on the order quantity and the season you place the order. The lead time of 500pcs is about 8 working days.
Q5.What is your terms of delivery?
A:We accept EXW FOB CIF, etc. You can choose the one which is the most convenient or cost effective for you.
Ordering and Pricing
- Minimum order quantity: 10 piece
- Volume pricing:
- 10–99 piece: US $10 / piece
- 100+ piece: US $8 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this gauge glass for boiler?
The standard minimum order quantity is 10 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 6months warranty. Spare parts and technical support remain available after the warranty period.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Qingdao Winton Industrial Glass Co., Ltd., based in China. The company 15 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Qingdao Winton Industrial Glass Co., Ltd. range on HVACR Nexus.
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