DIN EN13789 SDNR Valve

Our DIN EN 13789 SDNR Valve follows DIN 3356 and DIN EN 13789 European industrial standards, built for PN10 and PN16 flanged pipeline systems. Face-to-face dimensions comply with EN 558 Series 1 (straight body) and Series 8 (angle body), with flange drilling fully matching DIN EN 1092-2. Two body types are available: straight pattern and angle pattern, covering complete DN15 to DN300 size range.
This ductile iron SDNR valve combines stop valve isolation and check valve anti-backflow functions in one unit. It eliminates the need to install separate shut-off and non-return valves on pump outlets, cutting pipeline layout costs for European municipal water, heating steam and light oil transmission projects. All internal sealing parts adopt stainless steel for stable tightness under medium temperature working conditions.

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Description

Technical Parameters

Technical Specifications

	Design Standard	DIN 3356, DIN EN 13789
	Face-to-Face Standard	EN 558 Series 1 (straight), EN 558 Series 8 (angle)
	Flange Norm	DIN EN 1092-2 PN10 / PN16
	Test Standard	DIN EN 12266
	Nominal Pressure	PN10 (1.0MPa), PN16 (1.6MPa)
	Max Working Temperature	≤200°C
	Suitable Media	Clean Water, Heating Steam, Light Oil, Non-Corrosive Gas

Full PN10 / PN16 Dimension Table

DN	L (Straight)	L (Angle)	D1	D2	D3	b	n-φd	H
15	130	95	65	45	14	14	4-φ14	100
20	150	105	75	58	65	16	4-φ14	164
25	160	115	85	68	85	16	4-φ14	166
32	180	140	100	84	100	18	4-φ19	192
40	200	150	110	95	110	19	4-φ19	199
50	230	165	125	110	125	20	8-φ19	235
65	290	180	145	129	145	20	8-φ19	261
80	310	200	160	144	160	20	8-φ19	300
100	350	220	180	160	180	21	8-φ19	357
125	400	240	210	188	210	23	8-φ23	386
150	480	260	240	212	240	23	8-φ23	465
200	600	325	295	268	295	26	12-φ23	480
250	730	360	350	320	350	28	12-φ28	488
300	850	400	400	370	400	32	12-φ28	500