CHECK VALVES AND STRAINERS

Non return ball check valve in cast iron DN50-400

Application

Sewerage Network protection

Network Protection

Product family

Pipeline protection

For used water (cleansing station, pumping station)
Flanges drilled according to DIN 2501 PN10
Face to face dimension DIN 3202/F1

Technical design


50	200	113	196	7.5	RCA50FMCF
65	240	126	219	14	RCA65FMCF
80	260	162	262	16	RCA80FMCF
100	300	194	304	21	RCB10FMCF
125	350	214	339	38	RCB12FMCF
150	400	260	403	52	RCB15FMCF
200	500	320	490	99	RCB20FMBF
250	600	365	563	160	RCB25FMBF
300	700	427	650	240	RCB30FMBF
350	800	485	738	268	*
400	900	537	820	360	RCB40FMBF

Features

Material and coating

Item	Description	Material	Coating
1	Body, cap and seat	Cast iron GS	Epoxy thickness 250 microns
2	Ball	DN50 to 100 : Aluminium type AK 11	NBR
2	Ball	DN125 to 400 : cast iron GS	NBR
3	Screws and bolts	Steel type A2
4	Joint cap/body	NBR

Hydraulic characteristics

Headloss at the opening 0.8 bar
Headloss: Kv

The headloss ∆P in the valve is expressed by the flow coefficient Kv that is the flow at a temperature of 20°C crossing the check valve by causing a headloss of 1 bar.

Those sizes are tied by the simplified following relation:

with Q in m³/h and Kv in m³/h, ∆P in bar.

Flow coefficient according to DN:

Tightness mini on water column downstream: 8m CE.