Plate Flange

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Slip on plate flange is welded onto the end of a pipe and allows the pipe to be bolted to another pipe. It creates junctions through the bolt holes and by welding treatment. Slip on pipe flange is suitable for water or fuel pipelines with low pressure, few pressure fluctuation and little vibration. It is widely accepted because it enables an easy connection between the pipes and shows high price-performance ratio. Slip on flange helps users to save the space with its light weight structure, and most importantly, it guarantees an extremely-low leakage rate on the pipeline system with excellent sealing performance.

While slip-on plate flange can’t ensure a 100% seal because of its structural limit. What we can do is just to improve its’ quality and performance as much as possible. Yuanyang owns a full range of inspection equipment, such as optical emission spectrometer from SPECTRO, chemical analysis and testing center, fully automatic carbon/sulfur analyzer, high-speed analyzer, X-ray testing chamber, ultrasonic flaw detector, magnetic particle detector, infiltration detector, ultrasonic thickness gauge, computer-controlled electronic universal testing machine, 60-ton hydraulic universal tensile testing machine, low-temperature impact testing machine, metallographic analyzer, and infrared thermometer, etc.

Production Range

Type	Nominal diameter		Pressure
Flange America standard	1/2"~100"	DN15-DN2500	Class150~Class2500
Flange Europe standard	1/2"~100"	DN15-DN2500	PN2.5~PN400

Commonly Used Materials

Austenitic stainless steel	Super duplex stainless steel	Nickel-based alloy steel	Carbon steel/alloy steel	Other materials
304 304L 304H 304LN	S31803 S32205	N10276 N04400 N06600	Q235 20# 20G	TA1 TA2 TA3 TC1～TC9
316 316L 316H 316Ti	S32304 S32760	N06600 N06625 N06690	WPB A105 16Mn	LF2 LF3 LF5 LF6 LF10
310S 321 321H 347	S32550 S32750	N08800 N08825 N08904	45# 15CrMo	Al, Ti, martensite
S31254	S33400	N08020 N08810 N08811	A350LF2 A420Gr.WPL6

Manufacturing Standards

Steel pipe flange for petrochemical use:	SH3406
Blind flange for steel pipes in petrochemical field:	SH3425
Steel pipe flange, washer, fasteners (PN series):	HG/T20592
Steel pipe flange (CLASS series):	HG/T20615
Large-diameter steel pipe flange (CLASS series):	HG/T20623
Steel pipe flanges:	GB/T9124
Pipe flanges and flange fittings:	ASME B16.5
Large-diameter steel flange:	ASME B16.47
Forged or rolled pipe flange, forged pipe fittings, valves and accessories:	ASTM A182/A182M
Cast steel flange fittings:	EN 1092
Steel pipe flange:	JIS B2220

Our company can provide plate flange according to custom need materials like austenitic stainless steel, duplex stainless steel, carbon steel and alloy steel listed as follows:
304 stainless steel plate flange
304L stainless steel plate flange
304H stainless steel plate flange
304LN austenitic stainless steel plate flange
316 stainless steel plate flange
316L stainless steel plate flange
316H stainless steel plate flange
316Ti stainless steel plate flange
310S stainless steel plate flange
321 stainless steel plate flange
321H stainless steel plate flange
347 stainless steel plate flange
S31254 austenitic stainless steel plate flange
S31803 duplex stainless steel plate flange
S32205 duplex stainless steel plate flange
S32304 duplex stainless steel plate flange
S32760 duplex stainless steel plate flange
S32550 duplex stainless steel plate flange
S32750 duplex stainless steel plate flange
S33400 stainless steel plate flange
N10276 Nickel alloy plate flange
N04400 Nickel alloy plate flange
N06600 Nickel alloy plate flange
N06625 Nickel alloy plate flange
N06690 Nickel alloy plate flange
N08800 Nickel alloy plate flange
N08825 Nickel alloy plate flange
N08904 Nickel alloy plate flange
N08020 Nickel alloy plate flange
N08810 Nickel alloy plate flange
N08811 Nickel alloy plate flange
Q235 carbon steel plate flange
20# carbon steel plate flange
20G carbon steel plate flange
WPB carbon steel plate flange
A105 carbon steel plate flange
16Mn steel plate flange
45# carbon steel plate flange
15CrMo alloy steel plate flange
A350 LF2 carbon steel plate flange
A420 grade WPL6 carbon steel plate flange
TA1 titanium plate flange
TA2 titanium plate flange
TA3 titanium plate flange
TC1—TC9 titanium alloy plate flange
LF2 alloy steel plate flange
LF3 alloy steel plate flange
LF5 alloy steel plate flange
LF6 alloy steel plate flange
LF10 alloy steel plate flange
Martensite stainless steel plate flange