RB Stainless Steel Safety Overflow Valve (4～230bar)

RB Series High-Pressure Overflow Valves (1/4″~1″)

Uses
RB Series direct-acting overflow valve is suitable for liquids, with strong vibration resistance and excellent flow capacity. It offers two functions:

1)Pressure relief protection when pressure exceeds the set value (prevents system overpressure) – normally closed in this condition;
2)Overflow pressure stabilization in fixed-displacement pump systems(maintains system pressure at the set value) – normally open in this condition.

Technical Data

● Set pressure range: 4~230bar
● Set pressure tolerance: ±5%(>10bar),±0.5bar(≤10bar)
● Working temperature: see "Application of Sealing Materials"
● Flow rate: See "Pressure - Flow Rate Curve
● Inlet pressure rating: 315bar

● Body material: 304 stainless steel
● Disc material: hardened 630 stainless steel
● O-ring Material: FPM, EPDM, NBR
● Spring Chamber Material: Carbon Steel with Zinc Plating
● Installation method: vertical installation (with valve cap on the top)
● Valve Pressure Setting Method:Tighten the adjusting screw clockwise to increase the set pressure. Loosen the adjusting screw counterclockwise to decrease the set pressure.

Product Details
概要描述
文档下载

Commodity name: RB Stainless Steel Safety Overflow Valve (4～230bar)
Commodity ID: EG00800
小标题: RB Series High-Pressure Overflow Valves (1/4″~1″)

○ Set pressure: 4～230bar; Max. working pressure: 315bar ○ -40℃～+200℃; R1/4～R1 ○ Used to stabilize pressure in liquid systems and prevent pressure from

Working principle

When inlet pressure exceeds set pressure, it overcomes the spring force to lift the valve disc. The valve then starts discharging liquid from its outlet to the water tank to control inlet pressure.

Ordering Information

Table of Technical Data [mm]

DN	Model	A	B	Spring X, A			Springs B, C, D, E
DN	Model	A	B	C	D	E	C	D	E
6	RB06-R1/4M-R1/4-N-SC	R1/4 external thread	Rc 1/4 internal thread	115	35	27	122	35	27
10	RB10-R1/2M-R1/2-N-SC	R1/2 external thread	Rc 1/2 internal thread	174	44	33	185	44	33
15	RB15-R1M-R1-N-SC	R1 external thread	Rc1 internal thread	225	59	48	230	59	48

Application of Sealing Materials

Materials	Uses
NBR	For non-corrosive media like water and oils; -35℃～+100℃
FPM	Resistance to acids, bases and benzene; applicable to most media; incompatible with ammonia; -25℃～+200℃
EPDM	Intended for ammonia, alcohols, ketones, and aldehydes; incompatible with mineral oil; -40℃～+130℃

Spring Selection

Spring Code	Pressure Setting Range	Valve Series
X	4–11 bar	RB06/RB10/RB15
A	10–22 bar
B	21–46 bar
C	45–100 bar
D	90–150 bar
E	140–230 bar

2) TAI Three-Way Fitting

Table of Technical Data [mm]

Ferrule		Weld	Model	AD	S	A	L1	L2	L3	L4	SW1	SW2	Max.Working Pressure[bar]
Ferrule		Weld	Model	AD	S	A	L1	L2	L3	L4	SW1	SW2	B-	E-	W-
B-	E-	W-	TAI-L12R1/4-SS	12	1.5	Rc1/4	50	81	116	30	22	19	250	315	315
B-	E-	W-	TAI-L18R1/2-SS	18	2.5	Rc1/2	64	100	141	39	32	27	210	250	250
B-	E-	W-	TAI-L28R1-SS	28	4.0	Rc1	84	122	170	49	41	41	120	210	220

Note: All the materials listed above are 304 stainless steel. The standard sealing material is FPM

Stainless Steel Overflow Valve

Key words:

RB
pressure
inlet
outlet
stainless steel
material
pressure regulator
application
relief valve

Uses
RB Series direct-acting overflow valve is suitable for liquids, with strong vibration resistance and excellent flow capacity. It offers two functions:
1)Pressure relief protection when pressure exceeds the set value (prevents system overpressure) – normally closed in this condition;
2)Overflow pressure stabilization in fixed-displacement pump systems(maintains system pressure at the set value) – normally open in this condition.
Technical Data
● Set pressure range: 4~230bar
● Set pressure tolerance: ±5%(>10bar),±0.5bar(≤10bar)
● Working temperature: see "Application of Sealing Materials"
● Flow rate: See "Pressure - Flow Rate Curve
● Inlet pressure rating: 315bar
● Body material: 304 stainless steel
● Disc material: hardened 630 stainless steel
● O-ring Material: FPM, EPDM, NBR
● Spring Chamber Material: Carbon Steel with Zinc Plating
● Installation method: vertical installation (with valve cap on the top)
● Valve Pressure Setting Method:Tighten the adjusting screw clockwise to increase the set pressure. Loosen the adjusting screw counterclockwise to decrease the set pressure.

Working principle

When inlet pressure exceeds set pressure, it overcomes the spring force to lift the valve disc. The valve then starts discharging liquid from its outlet to the water tank to control inlet pressure.

Ordering Information

Table of Technical Data [mm]

DN	Model	A	B	Spring X, A			Springs B, C, D, E
DN	Model	A	B	C	D	E	C	D	E
6	RB06-R1/4M-R1/4-N-SC	R1/4 external thread	Rc 1/4 internal thread	115	35	27	122	35	27
10	RB10-R1/2M-R1/2-N-SC	R1/2 external thread	Rc 1/2 internal thread	174	44	33	185	44	33
15	RB15-R1M-R1-N-SC	R1 external thread	Rc1 internal thread	225	59	48	230	59	48

Application of Sealing Materials

Materials	Uses
NBR	For non-corrosive media like water and oils; -35℃～+100℃
FPM	Resistance to acids, bases and benzene; applicable to most media; incompatible with ammonia; -25℃～+200℃
EPDM	Intended for ammonia, alcohols, ketones, and aldehydes; incompatible with mineral oil; -40℃～+130℃

Spring Selection

Spring Code	Pressure Setting Range	Valve Series
X	4–11 bar	RB06/RB10/RB15
A	10–22 bar
B	21–46 bar
C	45–100 bar
D	90–150 bar
E	140–230 bar

2) TAI Three-Way Fitting

Table of Technical Data [mm]

Ferrule		Weld	Model	AD	S	A	L1	L2	L3	L4	SW1	SW2	Max.Working Pressure[bar]
Ferrule		Weld	Model	AD	S	A	L1	L2	L3	L4	SW1	SW2	B-	E-	W-
B-	E-	W-	TAI-L12R1/4-SS	12	1.5	Rc1/4	50	81	116	30	22	19	250	315	315
B-	E-	W-	TAI-L18R1/2-SS	18	2.5	Rc1/2	64	100	141	39	32	27	210	250	250
B-	E-	W-	TAI-L28R1-SS	28	4.0	Rc1	84	122	170	49	41	41	120	210	220