Top-Quality Flange Sight Glass Valve with Forged Steel Construction

Product Details
Customization: Available
After-sales Service: 24 Hour Service
Warranty: 1 Year
Diamond Member Since 2025

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  • Top-Quality Flange Sight Glass Valve with Forged Steel Construction
  • Top-Quality Flange Sight Glass Valve with Forged Steel Construction
  • Top-Quality Flange Sight Glass Valve with Forged Steel Construction
  • Top-Quality Flange Sight Glass Valve with Forged Steel Construction
  • Top-Quality Flange Sight Glass Valve with Forged Steel Construction
  • Top-Quality Flange Sight Glass Valve with Forged Steel Construction
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  • Overview
  • Company Profile
  • Product Description
Overview

Basic Info.

Model NO.
ASTM, ASME/ANSI, GOST, EN, SABS/BS, JIS, DIN
Certification
CE, FDA, EEC, ISO13485
Shape
Equal
Head Code
Square
Connection
Welding
Material
Stainless Steel
Transport Package
Wooden Box
Specification
ASTM/EN/JIS
Trademark
YULONG
Origin
China

Product Description

Flange Sight Glass Valve
The stainless steel flange straight-through sight glass is an important accessory widely used in pipelines and equipment installations. Its main function is to be used for drainage or reflux before the receiving tank, as well as on liquid pipelines such as cooling water, to observe the flow of the liquid. 
There are also various styles of stainless steel flange straight-through sight glasses available for selection, such as square middle head wafer type, round middle head wafer type, round middle head double (single) cap type, square middle head double (single) pressure type, round middle head double (single) pressure type, etc. The connection methods are usually flange, thread or welding. 
When installed and used, this sight glass has a small installation size, low driving torque, is easy and quick to operate, and has good flow regulation function and sealing performance when closed. At the same time, since the sight glass is the dominant form in the field of medium and large diameters and medium and low pressures, it has been widely used in industrial pipelines and equipment.
Company Profile
Top-Quality Flange Sight Glass Valve with Forged Steel Construction
Top-Quality Flange Sight Glass Valve with Forged Steel Construction
Cangzhou Yulong Steel Co., Ltd.
      Cangzhou Yulong Steel Co., Ltd. is a big seamless pipe manufacturer, whose production capacity is 200,000 tons, sales revenue is 1 billion RMB. It is one of the biggest seamless pipe manufacturer in north China, and the factory is located in Lijiapu industrial zone, Cang county, with traffic advantage. Our construction area is 68,000 square meters, and first project is 12,000 square. There is 178 employees in the company, including 3 senior engineers, 3 professional technicians, and10 product development personnel.
       Now we have hot rolled punching machine 60 one set, 180 one set, cold rolled machine one set, hot expand machine one set, manufacturing 1/2"-30" seamless pipe. There are also configure advanced automatic control system and on-line quality inspection system, including on-line turbo detection, hydraulic test machine, ultrasonic inspection etc. We also have an independent loboratory to ensure the quality for each pipe.
      The company insists on quality of survival, science and technology for development, management and profit for concept, API, Q1, ISO 9001 standard is quality control system, continuously reduce energy consumption, improve product quality. We have got API5L, API5CT, ISO9001, ISO14001, OHSAS18001 certificate, guarantee company product quality, system integrity and environment safe. 
Product Description
Top-Quality Flange Sight Glass Valve with Forged Steel Construction
Top-Quality Flange Sight Glass Valve with Forged Steel Construction
Top-Quality Flange Sight Glass Valve with Forged Steel Construction
Application
The sight glass sight  is mainly used to observe the flow state, color change or sedimentation of the medium inside the pipeline or container. Its core functions include: 
Real-time monitoring: Observe the medium directly through the transparent window to avoid frequent opening of the cover for inspection. 
2. Safety protection: Tempered glass or quartz glass is used, with a pressure resistance of up to 1.6 - 4.0 MPa, and it also features an explosion-proof design. 
3. Sealing Assurance: PTFE gaskets or metal wound gaskets are used at the flange connection to ensure no leakage.
Top-Quality Flange Sight Glass Valve with Forged Steel Construction
Top-Quality Flange Sight Glass Valve with Forged Steel Construction
After Sales Service
Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 12 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.
FAQ
1. Are you a manufacturer or trading company?
We are a professional valves and fittings manufacturer with 20 years' experience.
2. What is payment method?
For samples: T/T, western union. For orders: T/T or L/C.
3. Do you offer free samples?
We can provide free samples and you should pay the freight. After you place an order, we will give back the freight. 
4. Do you offer OEM service and can you product as our drawings?
Yes. We offer OEM service. We accept custom design and we have a professional design team who can design products based on your requirements.
And we can develop new products according to your samples or drawings. 
5. Do you accept our design on boxes?
Yes. We accept custom design on boxes. 
6. What's your delivery time?
Standard models ship in 15–30 days; customized units require 30–45 days. If urgent, we can also meet your requirement.
7. Is your price higher than other companies?
Since we have been a professional manufacturer more than 20 years, we can control our quality and costs well. 
So our prices are very competitive. And we dedicate to establishing long-term and friendly relationships with all the customers.
8. What is your main market?
Southeast Asia,Middle East ,North America,South America,Europe etc.
9. Do you provide after-sales service overseas?
Yes, we have partnered service centers in key regions.
 
10. What documents do you provide for export?
Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
 
11.How do I place an order?
Contact us via email/phone for a quote, then confirm with a PO.

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