Check valves

Check valves type 15с57нж, 15лс57нж, 15нж57нж
Check valves are intended for installation on pipelines as shutoff devices.

Sealing surfaces are made of stainless steel.
The following steel grades are used for manufacture of check valve bodies: 09Г2С, 20, 08Х18Н10Т, 10Х17Н13М2Т, 06ХН28МДТ.
The valves are intended for operation in moderate and cold (F) macroclimatic regions according to GOST 15150.

Media temperature — up to +450С,

Технические характеристики

Условное обозначение	DN, mm	PN
		10, 16, 20, 25 МПа
		d	L	H
КК 315	15	G1/2	90	160
КК 320	20	G3/4	110	10
КК 325	25	G1	130	10

Условное обозначение	PN
	10, 16, 20, 25 МПа
	d1	d2	L
КК 315	12	19	80
КК 320	18	26	96
КК 325	25	33	120

Условное обозначение	PN,МПа
	10			16			20			25
	D	L	L1	D	L	L1	D	L	L1	D	L	L1
КК 315	105	134	240	105	134	250	120	216	336	120	216	360
КК 320	125	158	276	125	158	281	130	230	346	130	230	394
КК 325	135	182	308	135	182	308	150	254	390	150	254	422

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