Design & Moulding with 14 years' experience, we make solidest and most practical products Stricter quality inspection--we pursue higher accuracy Customization--we customize the exact product in your heart
Seamless carbon steel pipes are made of steel ingots or solid billets through perforation to make capillaries, which are then hot-rolled, cold-rolled or cold-drawn. The raw material of carbon Steel Pipe is a round tube blank, which is cut by a cutting machine into a billet with a length of about 1 meter, and sent to a furnace for heating through a conveyor belt. The billets are fed into the furnace and heated at about 1200 degrees Celsius. The fuel is hydrogen or acetylene. Furnace temperature control is a critical issue. After the round tube blank is released from the furnace, it is pierced through a pressure punching machine. Generally, the more common punching machine is the conical roller punching machine. This kind of punching machine has high production efficiency, good product quality, large amount of perforation and diameter expansion, and can wear a variety of steel grades. After perforation, the round tube blank is successively cross-rolled, continuously rolled or extruded by three rolls.
Hot Rolled Steel Pipe, Seamless Steel Pipe, Cold Rolled Steel Pipe SHANDONG HUITONG STEEL CO.,LTD , https://www.cnhuitongsteel.com
Features
CH4 CO H2S O2 4 Gas Detector, Hand-Held Portable Multi Gas Detector CD4 Coal Mine Gas Detector
- Detects 2~5 gases simultaneously, including toxic gases, combustible gases, and oxygen.
- Intrinsically safe, CE certified, and CMExC certified.
- Compact and durable, ideal for industrial use with high sensitivity and accuracy.
- High-quality sensors imported from the UK.
- Fully customizable alarm points.
- Custom gas combinations, private label, and logo options available.
Applications
CH4 CO H2S O2 4 Gas Detector, Hand-Held Portable Multi Gas Detector CD4 Coal Mine Gas Detector
- Food & Beverage
- Automotive
- LNG & LPG
- Pharmaceutical
- Oil and Gas
- Petrochemical
- Water/Waste Water Treatment
- Metals & Steel Production
- Power Stations
Specifications
CH4 CO H2S O2 4 Gas Detector, Hand-Held Portable Multi Gas Detector CD4 Coal Mine Gas Detector
Series
SA-M203Â
Battery
Rechargeable lithium
Sensor type
Infrared, catalytic, electrochemical
Charging
By AC adapter or 5V USB port
Sensor lifetime
 Electrochemical: ≥2 years
Charging time
4~5 hours
Backlight
Always ON
Catalytic: ≥1 year
Sampling
Natural diffusion
Alarms
 LED alarm ≥20cm
Continuous working time
>12h
Buzzer alarm ≥95dB, 30cm
Working temperature
 '-25ºC~ +55ºC
Low power alarm
Short time: -40~+55ºC
Display
Color LCD/ OLCD
Ex proofÂ
Yes
LCD reading
Real-time concentration, battery indicator, date
IP degree
IP65
Data logging       ( optional)
Continuously data logging (1900 data at 0.1-10 configurable interval)
Size & weight (with package)
130*66*30mm, 300g
Display
- OEM & ODM design by Beijing Dashiweiye Tech.
- Manufactured and produced by Beijing Shian Tech.
Accessories
Standard-
- USB extension cord
- Charging adapter
- Calibration mask and tube
- Stainless steel clip
- Hanging cord
- Carrying Holster
- English User's manual
Optional accessories
- Gas sampling pump with filter. (sampling hose and probe.)
- Data logger software, works for Windows 10, Windows XP, Windows 7. Available to output Excel file.
- Carrying suitcase. Hard-sided carrying case with foam case insert.
About Us
Beijing Shi'an Tech Instrument Co., Ltd is grown out of Beijing Dashiweye Technology Co., Ltd, and it's engaged in designing and manufacturing portable gas detectors.
CH4 CO H2S O2 4 Gas Detector, Hand-Held Portable Multi Gas Detector CD4 Coal Mine Gas Detector
CH4 Co H2s O2 4 Gas Detector, Hand-Held Portable Multi Gas Detector CD4 Coal Mine Gas Detector
Model NO.: CD4
Detection Type: Diffusing
Color: Yellow and Black
Transport Package: Kraft Paper Carton
Specification: 130*60*30mm / 300g
Origin: Beijing
HS Code: 9027100090
CH4 CO H2S O2 4 Gas Detector, Hand-Held Portable Multi Gas Detector CD4 Coal Mine Gas Detector