Product Details

Sight Glass Plan Borosilicate Gage Type A

Product Description

Size

1) Three tendons (four grooves)

340 x 30 x 17mm; 320 x 30 x 17mm; 280 x 30 x 17mm;

250 x 30 x 17mm; 218 x 30 x 17mm; 190 x 30 x 17mm;

165 x 30 x 17mm; 140 x 30 x 17mm; 115 x 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 30 x 17mm; 320 x 30 x 17mm; 280 x 30 x 17mm;

250 x 30 x 17mm; 218 x 30 x 17mm; 190 x 30 x 17mm;

165 x 30 x 17mm; 140 x 30 x 17mm; 115 x 30 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 30 x 17mm; 320 x 30 x 17mm; 280 x 30 x 17mm;

250 x 30 x 17mm; 218 x 30 x 17mm; 190 x 30 x 17mm;

165 x 30 x 17mm; 140 x 30 x 17mm; 115 x 30 x 17mm;

The other size is optional or according to the requirements of customers.

Working temperature: 260°C, Working pressure: 8.0MPa.

Sight Glass Plan Borosilicate Gage Type A

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: Diameter≤0.5mm,in the 10mm x 10mm area the quantity must be ≤3. Diameter from 0.5mm to 1.5mm dispersive air bubble,there is less 2 on the sight plane and less 5 on the No-sight plane. Their distance must be 40mm. The air bubble of Diameter from 1.5mm to 2mm ≤3 on the No-sight plane. Their distance must 40mm. On the sight plane, The distance to the side in 7.5mm,the air bubble of the diameter1mm mustnt be more 2. 2) The glass dont allow slag and scrap iron,etc. impurity. 3) Stripe : dont allow have palpable filaceous and pectinate stripe on the sight plane. 4) Cockle: In the side face,dont allow have the cockle of depth 1mm. 5) Crack: dont allow have crack. 6) Scrape: On the sight plane and in the 7.5mm to edge,the scrape of less than 10mm dont allow more 2 strips. 7) The sight plane must be polishing,and sealing side must be rubbing and polishing.
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

Sight Glass Plan Borosilicate Gage Type A

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.

Packaging & Shipping

Sight Glass Plan Borosilicate Gage Type A

FAQ

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.