Bronze Threaded Spring Loaded Vertical Check Valve

Working pressure PN20
Working temperature -20°C / +170°C
Connection type ISO228

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Documents

Product catalog page

PDF 1 page(s) 264 KB EN 01.08.2026

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What it does

Check Valves

A check valve is an automatic safety component that allows fluid to pass in one direction only and closes off reverse flow by itself. It requires no external actuation: closing occurs mechanically when flow stops and back pressure builds up. Check valves are used to prevent backflow and water hammer at pump outlets, to prevent reverse flow on boiler feed lines, and to isolate branches on lines fed from more than one source. Spring-loaded types permit both vertical and horizontal installation, swing types operate with low pressure drop, and dual-plate and disc types are preferred where a short face-to-face dimension is required.

Where it is used

Application areas

01 Chemical - Petrochemical
02 Water - Wastewater
03 Heating - Cooling Systems
04 Maritime Applications
05 Mining Applications
06 Power Stations

Dimensions

Dimension table

6 rows × 4 columns

Bronze Threaded Spring Loaded Vertical Check Valve — Dimension table
kolon_1*	ISO228	kolon_3*	PN20
1	GÖVDE	BODY	RG5
2	DİSK	DISC	RG5
3	SİT	SEAT	NBR
4	YAY	SPRING	AISI304
5	CONTA	GASKET	PTFE
6	KAPAK	BONNET	RG5

* This column heading is embedded inside the technical drawing in the source PDF, so it could not be read as text. The values are correct; only the column name still has to be entered manually.

Material