DN50-200 with neck mirrorDetailed product description：

Product Overview:
Neck mounted sight glass is one of the main accessories on industrial equipment and devices. In containers of industrial production equipment such as petroleum, chemical, pharmaceutical, and food, the sight glass can observe the flow and reaction of liquids, gases, vapors, and other media in the container at any time, playing a role in monitoring production and avoiding accidents during the production process.

Main technical parameters:
Shell material: Carbon steel WCB, stainless steel 304, 321, 316, 316L, steel lined PTFE.
Window material: tempered borosilicate glass, quartz glass.
Sealing material: Nitrile rubber, polytetrafluoroethylene, graphite metal winding sheet.
Working pressure (MPa): ≤ 0.6
Working temperature (℃): 0~250 ℃, 0~800 ℃

Main Material List

Shell material	Carbon steel WCB, stainless steel 304, 321, 316, 316L
Window material	Tempered borosilicate glass	quartz glass
Working temperature (℃)	0~250	0~800
Nominal pressure (MPa)	＜0.6	0.6~2.5
Seal material	Nitrile rubber, polytetrafluoroethylene, graphite metal winding sheet
connection type	Threaded connection, flange connection
Allow sudden temperature changes (℃)	＜60

Connection size:

Nominal diameter DN	Nominal pressure Mpa	D	D1	dH	h	≈H	Weight kg	Standard Number
fifty	zero point six	one hundred and fifteen	ninety	fifty-seven	forty-five	seventy-three	one point six nine	JB595-64
eighty		one hundred and forty-five	one hundred and twenty	eighty-nine	fifty	eighty-two	three point two five
one hundred and twenty-five		two hundred and five	one hundred and seventy-five	one hundred and thirty-three	fifty	eighty-eight	six point six five
one hundred and fifty		two hundred and thirty	two hundred	one hundred and fifty-nine	sixty	one hundred	eight point six one
fifty	one	one hundred and thirty	one hundred	fifty-seven	seventy	one hundred and thirteen	four point two	HGJ502-86
	one point six		one hundred and sixteen			four point five
	two point five		one hundred and twenty			five
eighty	one	one hundred and sixty		one hundred and thirty		eighty-nine	six point four
	one point six		one hundred and twenty-seven	seven
	two point five			seven point four
one hundred	one	two hundred	one hundred and sixty-five	one hundred and eight	eighty	one hundred and twenty-eight	ten point nine
	one point six		one hundred and forty-three			eleven point six
one hundred and twenty-five	one	two hundred and twenty-five		one hundred and ninety		one hundred and thirty-three	thirteen point six
one hundred and fifty	one	two hundred and fifty	two hundred and fifteen	one hundred and fifty-nine		one hundred and fifty	seventeen point four
two hundred	one	three hundred	two hundred and sixty-five	two hundred		one hundred and sixty	twenty-two point one

Flange standard: HG20592-97PN1.0. When customers require GB, SH, HGI, JB, ANSI, JIS or other standards or change the pressure rating, please specify in the purchase contract.