Hard hat common colors:
The common colors of helmets are white, red, blue, yellow, green, camouflage, and black.
Red is derived from red and burgundy.
The yellow color is yellow and yellowish.
White red, blue and yellow are generally used for production, and green camouflage black is generally used for military and police.
The representative meaning of the use of different colors of helmets:
The relevant national standards do not make guidelines for the use of helmet colors. Various industries, systems, and companies have different specifications. For example, there are several typical color usage specifications:
achitechive:
Wine Red: Leader Red: Technician White: Safety Supervisor Blue: Electrician or Supervisor Yellow: Other Construction Workers
Guodian System:
White: Leader Blue: Manager Yellow: Construction Staff Red: Outsiders
Petroleum system:
White: Managers Yellow: Safety Supervisors Red: Operators
The color of the helmets used by contractors outside the group should be different from the color of the helmets of employees of the group company.
Red helmets should be worn when working in explosive workplaces.
Red helmets are prohibited in the railway system.
Red represents a stop signal. It may mislead the locomotive flight attendant to believe that it is a temporary stop signal when working on both sides of the line. In such cases, accidents occur on roads with poor lighting and poor visibility, etc. When construction or maintenance work is performed on an on-line road, it is not possible to notify the dispatcher or the station at both ends of the train if it is found to be dangerous or has defects. Under the circumstances, manual stopping of trains must be used. But if it is not stopped, the red hat will lead to misleading!
The safety helmet has the greatest effect on the maintenance and operation personnel. He directly affects the life safety of front-line production personnel. This is not an exaggeration, especially for maintenance personnel. The requirements for helmets must not only be reasonable, firm and comfortable, but also should be eye-catching. This is particularly important for maintenance. Because the maintenance personnel may often need to work up and down, they must work under poor lighting conditions. , The eye-catching colors will give direct reminders to the working staff and attachments: Special attention is needed. I have people working underneath or next to me, don't drop things and hurt people, and don't show other things that may harm others and may be harmed by others. . When safety supervision or other personnel are on the scene, they also need to promptly discover possible violations or hidden dangers of the staff, and prevent or rectify them in time.
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China Threaded Fittings,Pipe Threaded Fittings supplier & manufacturer,
Size: 1/2''~6''
Class Rating: 3000~6000
Facing: RF(raised face);FF(flat face);RTJ(ring type joint);RJ(ring joint face)
TG(tongue and groove face);MFM(male and female face)
Manufacturing process: Push, Press, Forge, Cast, etc.
Material:
Carbon steel:
ASTM A105;
ASTM A266 GR.1,GR.2,GR.3,GR.4
Stainless steel:
304/SUS304/UNS S30400/1.4301
304L/UNS S30403/1.4306;
304H/UNS S30409/1.4948;
309S/UNS S30908/1.4833
309H/UNS S30909;
310S/UNS S31008/1.4845;
310H/UNS S31009;
316/UNS S31600/1.4401;
316Ti/UNS S31635/1.4571;
316H/UNS S31609/1.4436;
316L/UNS S31603/1.4404;
316LN/UNS S31653;
317/UNS S31700;
317L/UNS S31703/1.4438;
321/UNS S32100/1.4541;
321H/UNS S32109;
347/UNS S34700/1.4550;
347H/UNS S34709/1.4912;
348/UNS S34800;
Alloy steel:
ASTM A694 F42/F46/F48/F50/F52/F56/F60/F65/F70;
ASTM A182 F5a/F5/F9/F11/F12/F22/F91;
ASTM A350 LF1/LF2/LF3;
Duplex steel:
ASTM A182 F51/S31803/1.4462;
ASTM A182 F53/S2507/S32750/1.4401;
ASTM A182 F55/S32760/1.4501/Zeron 100;
2205/F60/S32205;
ASTM A182 F44/S31254/254SMO/1.4547;
17-4PH/S17400/1.4542/SUS630/AISI630;
F904L/NO8904/1.4539;
725LN/310MoLN/S31050/1.4466
253MA/S30815/1.4835;
Nickel alloy steel:
Alloy 200/Nickel 200/NO2200/2.4066/ASTM B366 WPN;
Alloy 201/Nickel 201/NO2201/2.4068/ASTM B366 WPNL;
Alloy 400/Monel 400/NO4400/NS111/2.4360/ASTM B366 WPNC;
Alloy K-500/Monel K-500/NO5500/2.475;
Alloy 600/Inconel 600/NO6600/NS333/2.4816;
Alloy 601/Inconel 601/NO6001/2.4851;
Alloy 625/Inconel 625/NO6625/NS336/2.4856;
Alloy 718/Inconel 718/NO7718/GH169/GH4169/2.4668;
Alloy 800/Incoloy 800/NO8800/1.4876;
Alloy 800H/Incoloy 800H/NO8810/1.4958;
Alloy 800HT/Incoloy 800HT/NO8811/1.4959;
Alloy 825/Incoloy 825/NO8825/2.4858/NS142;
Alloy 925/Incoloy 925/NO9925;
Hastelloy C/Alloy C/NO6003/2.4869/NS333;
Alloy C-276/Hastelloy C-276/N10276/2.4819;
Alloy C-4/Hastelloy C-4/NO6455/NS335/2.4610;
Alloy C-22/Hastelloy C-22/NO6022/2.4602;
Alloy C-2000/Hastelloy C-2000/NO6200/2.4675;
Alloy B/Hastelloy B/NS321/N10001;
Alloy B-2/Hastelloy B-2/N10665/NS322/2.4617;
Alloy B-3/Hastelloy B-3/N10675/2.4600;
Alloy X/Hastelloy X/NO6002/2.4665;
Alloy G-30/Hastelloy G-30/NO6030/2.4603;
Alloy X-750/Inconel X-750/NO7750/GH145/2.4669;
Alloy 20/Carpenter 20Cb3/NO8020/NS312/2.4660;
Alloy 31/NO8031/1.4562;
Alloy 901/NO9901/1.4898;
Incoloy 25-6Mo/NO8926/1.4529/Incoloy 926/Alloy 926;
Inconel 783/UNS R30783;
NAS 254NM/NO8367;
Monel 30C
Nimonic 80A/Nickel Alloy 80a/UNS N07080/NA20/2.4631/2.4952
Nimonic 263/NO7263
Nimonic 90/UNS NO7090;
Incoloy 907/GH907;
Nitronic 60/Alloy 218/UNS S21800
SALES@GHSAILINGPIPE.COM
A threaded pipe is a pipe with a thread. They are often used in water gas pipes, small diameter water pipes, compressed air pipes and low pressure steam pipes. The pipe is connected to the pipe end with the thread. The thread can be coated with suitable adhesive (such as thick white paint, lead oxide glycerin adhesive, etc.) to ensure sealing.
There are mainly internal teeth, external teeth, live tube, elbow (elbow), three way pipe, four way pipe (crosshead) and reducer.Manufacturing standards:
GB/T 14383, ASME B16.11, BS 3799, MSS SP 83
Threaded Fittings,Pipe Threaded Fittings,Steel Threaded Fittings,Forged Threaded Fittings
HeBei GuangHao Pipe Fittings Co .,LTD (Cangzhou Sailing Steel Pipe Co., Ltd) , https://www.guanghaofitting.com