USA Market 1/2 NPT Dome Oil Level Sight Glass Liquid Sight Glass

FOB Reference Price:Get Latest Price
$1.59 - $3.99 / Piece | 300 Piece/Pieces (Min. Order)
Support Sea freight
Lead Time:
Quantity(Pieces) 1 - 90000 >90000
Est. Time(days) 21 Negotiable
Customized logo (Min. Order: 300 Pieces)
Customized packaging (Min. Order: 300 Pieces)


Graphic customization (Min. Order: 300 Pieces) Less
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Quick Details
Place of Origin:
Zhejiang, China
Brand Name:
Model Number:
Sight Glass
ALLOY, Alloy
Male, Male
Hex Body Dome sight glass
Head Code:
Dome shape sight window
Product name:
Glass Dome Sight Window
Factory location:
Delivery time:
Standard export package
Supply Ability
Supply Ability:
9999 Piece/Pieces per Week
Packaging & Delivery
Packaging Details
blister + Standard Export Packaging
Lead Time :
Quantity(Pieces) 1 - 90000 >90000
Est. Time(days) 21 To be negotiated
Product Description

1. Material Body: The 1/2 NPT domed Sight Glass is Made of Solid Brass

    Fanovo Could Customize different Material Oil level Sight Gauge: Aluminum,Steel,plastic etc. 

2. O-Ring: Viton,NBR, or Copper seal

3. Dome Glass Thickness: 2 mm to 5 mm

4. The dome sight gauge is w/o Reflectors, 

    Other Sight Window type you can choose with Stainless Steel 304 reflector or without Reflector, 

    choose float ball in body as indication. 

5. Glass Type: Transparent Plastic

    Fanovo could supply different male thread sight gage with Natural Glass,Tempered Glass and  

    Borosilicate Glass

6. Resist Temperature Range:-30'C to 120'C

7. Pressure Range: 5-10 Bar (0.5 Mpa to 1 Mpa).

8. Sight Window Thread Type: 1/2 MNPT 

    NPTF, UNC, UNF, Metric and BSP(G thread) are available for different market. 


>Pump and Oil Receivers 

>Gearboxes,Speed Reducer

.>Compressor Machine 

>High pressure tanks

>Liquid level view ports

>Hydraulic level indicators

>Super critical & petroleum research systems

>All classes of refrigerant systems, including CO2-based R744

>Sanitary & FDA applications for pharmaceutical & food processing

>Simple lighting windows for deep sea, ultra high pressure & vacuum systems

Product name
1/2 NPT domed sight glass
Factory location
Related Products
Material Test Report

Fanovo imported Spectrometer machines for metal test, keep materials of each order meet Customers' need. The metal includes stainless steel 304, 316L, lead free NSF brass, CW 617, Monel 400, etc. 

 Material Analysis Equipment

 All incoming material before production will be tested by material analysis machine

Material Test Report

Material test report will be shipped with each order, We guarantee the materials qualified for customers. 

Spectrometer Machine for Material Test  

Fanovo is capable to test brass, stainless steel, Aluminum etc. 
Fanovo Images

Incoming Quality Control

Fanovo will do 100% inspection for incoming material, brass bar, stainless steel, steel etc.

Lean Manufacturing

IPQC department will inspect the process of Turning&milling, Fanovo do production accord to DWG. 

Imported CNC 

5-axis machining involves using a CNC to move a part along five different axes simultaneously

6 Pcs 400T forging machine 

Automatic Assembly for valves


5S management assembly Line 



Fanovo are carrying out Total Quality Management and obtained  ISO 9001 for management  The quality responsibility is divided into quality divisions ( SQC, IQC, IPQC, FQC, OQC). Fanovo promises Just-in-time delivery and fine manufacturing for our customers. Meanwhile Fanovo has the certification of NSF/ANSI 61, UPC/ CE for main products including brass valves, fittings, couplings, etc. 

Delivery Packaging

Fanovo's delivery packing by sea is in Carton Box and pallet. Ensure your shipment arrives safely and on time by packing your goods well. It's one of the most important things Fanovo can do to reduce the risk of delays and damage during transit.

Inner Box :

White Box

or Color Box

Carton Box:

Corrugated Box

With Item Label 

Pallet Packing:

By Sea/ By Air

Sea shipping

Fanovo recommend to ship by sea if quantity is big that saves much freight for customers. 

DHL/ UPS/ FEDEX/TNT/ Special Air Delivery 

Good for sample delivery and small volume


Q: Are you trading company or manufacturer ?

A: We are a manufacturer with our own trading company in Shanghai.

Q: How long is your delivery time?

A: Generally it is 2-10 days if the goods are in stock. or it is 20-40 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

Q: Can you customize products for your customers?

A: Yes, Customized service is one of our core business, we have no small MOQ request. 

Q:Will you do 100% inspection before Shipment? 

A: Our QC will do 100% inspection and we will take the 100% claims if defective. 

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