KVV Compact Safety Relief Valve (2～35bar,Adjustable)

KVV Low-Lift Stainless Steel Pressure Relief Valve (1/4″~1/2″)

Uses
● KVV pressure relief valve is suitable for neutral and non-toxic liquids and gases such as water, oil, and air.

● KVV limits system pressure. When valve inlet pressure exceeds the preset pressure level (set pressure), KVV opens to reduce inlet pressure.

Features
● Low-lift structure, suitable for occasions with small discharge requirements
● Direct acting mechanism ensures rapid response
● Adjustable set pressure
● Compact straight-through design

Technical Data

● Set pressure range: 2~35bar (see "Ordering Information")
● Shell pressure resistance: 160bar
● Set pressure tolerance: ±8%, (Min.±0.3bar)
● Min. re-seating pressure: 80%*set pressure
● Casing material: 304 stainless steel

● Spring material: 304 stainless steel

● Disc material and temperature resistance: FPM, standard (-25℃~+150℃);EPDM, optional (-45℃~+120℃)

Product Details
概要描述
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Commodity name: KVV Compact Safety Relief Valve (2～35bar,Adjustable)
Commodity ID: EG00790
小标题: KVV Low-Lift Stainless Steel Pressure Relief Valve (1/4″~1/2″)

○ Set pressure: 2～35bar; -45℃～+150℃ ○ Connection: R1/4～1/2, G1/4～1/2, 1/4NPT ○ Compact design, limits pressure for liquid or gas systems, suitable for occasions with small discharge requirements

Working principle

When inlet pressure exceeds the set pressure, it overcomes spring force to lift the valve disc, allowing the medium to flow through the valve and to be discharged from the outlet. The outlet is generally vented to atmosphere to avoid affecting relief performance. When system pressure drops below reseat pressure, the valve disc reseats and the valve closes.

How to Set Valve Set Pressure

To increase set pressure (opening pressure), tighten the adjusting screw clockwise with a hexagon socket wrench. To decrease set pressure, loosen the locking screw counterclockwise. When verifying the set pressure, increase inlet pressure gradually while keeping the outlet vented.

Notes: KVV pressure relief valve is designed for general over-pressure protection and shall not be used as certifiedsafety valves meeting pressure vessel design standards.

Ordering Information

Table of Technical Data [mm]

Inlet	Outlet	Model	DN	Inlet A	Outlet B	L	SW1	SW2
Male	Female	KVV-1/4NPT-M/F-F-SS	5.5	1/4 NPT male thread	1/4 NPT internal thread	81	27	22
		KVV-R1/4-M/F-F-SS	5.5	R1/4 external thread	Rc 1/4 internal thread	77	27	22
		KVV-R1/2-M/F-F-SS	8.5	R1/2 external thread	Rc 1/2 internal thread	84	27	22
Female	Female	KVV-G1/4-F/F-F-SS	5.5	G1/4 internal thread	G1/4 internal thread	80	27	22
Female	Female	KVV-G1/2-F/F-F-SS	8.5	G1/2 internal thread	G1/2 internal thread	85	27	27

Key words:

Kvv
pressure
inlet
setpoint
valve
screw
system
spring
structure
outlet

Uses
● KVV pressure relief valve is suitable for neutral and non-toxic liquids and gases such as water, oil, and air.
● KVV limits system pressure. When valve inlet pressure exceeds the preset pressure level (set pressure), KVV opens to reduce inlet pressure.
Features
● Low-lift structure, suitable for occasions with small discharge requirements
● Direct acting mechanism ensures rapid response
● Adjustable set pressure
● Compact straight-through design
Technical Data
● Set pressure range: 2~35bar (see "Ordering Information")
● Shell pressure resistance: 160bar
● Set pressure tolerance: ±8%, (Min.±0.3bar)
● Min. re-seating pressure: 80%*set pressure
● Casing material: 304 stainless steel
● Spring material: 304 stainless steel
● Disc material and temperature resistance: FPM, standard (-25℃~+150℃);EPDM, optional (-45℃~+120℃)

Working principle

How to Set Valve Set Pressure

Notes: KVV pressure relief valve is designed for general over-pressure protection and shall not be used as certifiedsafety valves meeting pressure vessel design standards.

Ordering Information

Table of Technical Data [mm]

Inlet	Outlet	Model	DN	Inlet A	Outlet B	L	SW1	SW2
Male	Female	KVV-1/4NPT-M/F-F-SS	5.5	1/4 NPT male thread	1/4 NPT internal thread	81	27	22
		KVV-R1/4-M/F-F-SS	5.5	R1/4 external thread	Rc 1/4 internal thread	77	27	22
		KVV-R1/2-M/F-F-SS	8.5	R1/2 external thread	Rc 1/2 internal thread	84	27	22
Female	Female	KVV-G1/4-F/F-F-SS	5.5	G1/4 internal thread	G1/4 internal thread	80	27	22
Female	Female	KVV-G1/2-F/F-F-SS	8.5	G1/2 internal thread	G1/2 internal thread	85	27	27