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Home Parts Thermoplastic Valves CategoryKBV Series Butterfly Valve

KBV Series Butterfly Valve

Thermoplastic Valves

KBV Series Butterfly Valve

KBV Series Butterfly Valve with Fluid Control & Flow Regulation Functions

KBV series butterfly valve is a type of rotary motion valve. The opening and closing part is a disc-shaped butterfly plate that controls the flow of the medium within the valve body by rotating the disc, thereby achieving the purpose of opening, closing, or regulating. It is generally suitable for large flow liquids or low-pressure gases. It features simple structure, small size, light weight, and easy to install and maintain.

Specifications
Working Principle
Video

Specification

KBVL Handle Butterfly Valve
KBVE New Electric Actuated Butterfly Valve
KBVWN New Worm Geared Butterfly Valve
KBVPN New Pneumatic Actuated Butterfly Valve

Material: UPVC, CPVC, PPH, and PVDF
Size: 1-1/2" – 8"; 63 mm – 225 mm; DN50 – DN200
Standard: ANSI, DIN, and JIS
Joint: Flanged
Working pressure:
- 1-1/2" – 6" 150 psi
- 8" 120 psi
Operation temperature:
- UPVC (5 °C to 55 °C)
- CPVC & PPH (5 °C to 90 °C)
- PVDF (-20 °C to 120 °C)
Color:
- Handle color: Red
- Body color: UPVC (dark gray), CPVC (light gray), PPH (beige), and PVDF (ivory white)

Feature

A modified PP disc delivers better performance.
Thickened valve body and gasket.
Materials comply with drinking water standards.
Nano-modified raw material to improve pressure resistance and impact resistance.
Adding anti-UV absorbers and antioxidants to improve weathering and aging resistance.
ISO 5211 Installation platform is reserved, compatible to most of standardized electrical actuator and pneumatic actuator.
Low torque.

Material List

S/N	Part	Specification	Qty.
48	Snap spring	Spring Steel	1
47	Gasket	EPDM/VITON	1
41	O-ring	EPDM/VITON	4
32	Washer	Fe/SUS304/SUS316	1
31	Screw	Fe/SUS304/SUS316	1
25	Spring	SUS304/SUS316	1
19	Bottom cap	PP + Fiber	1
18	Logo	ABS	1
16	Plug	ABS	2
13	Handle Pullar	UPVC/CPVC/PPH/PVDF	1
12	Switch grip	UPVC/CPVC/PPH/PVDF	1
11	Runner	UPVC/CPVC/PPH/PVDF	1
10	Handle	ABS	1
05	Stem	SUS304/SUS316	1
03	Valve disc	PP + Fiber	1
01	Body	UPVC/CPVC/PPH/PVDF	1

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Table 1: KBVL Handle Butterfly Valve (Uni: mm)
Size	d	C1	C2	H		H1		H2	H3	D	D1	M1	M2	d1	d2	S	W	L	n-φe		Operating Torque (N.M)
Size	d	C1	C2	DIN/ANSI	JIS	DIN/ANSI	JIS	H2	H3	D	D1	M1	M2	d1	d2	S	W	L	JIS	DIN/ANSI	Operating Torque (N.M)
1-1/2" (40)	40.00	98.00	110.00	219.40		65.40		114.00	14.00	148.00	105.00	70.00	50.00	8.50	6.50	13.90	34.00	231.00	4–19		12
2" (50)	52.00	120.00	125.00	237.00		73.00		124.00	14.00	162.00	105.00	70.00	50.00	8.50	6.50	13.90	44.00	231.00	4–19		15
2-1/2" (65)	66.00	140.00	145.00	250.20		81.20		129.00	18.00	179.00	105.00	70.00	50.00	8.50	6.50	13.90	46.00	231.00	4–19		18
3" (80)	78.50	150.00	160.00	275.00		90.00		144.00	18.00	195.00	120.00	102.00	70.00	10.50	8.50	13.90	57.00	231.00	8–19		20
4" (100)	104.00	175.00	190.50	312.50		112.50		160.00	18.00	225.00	120.00	102.00	70.00	10.50	8.50	13.90	60.00	231.00	8–19		30
5" (125)	127.00	210.00	216.00	336.50		119.50		175.00	18.00	255.00	120.00	102.00	70.00	10.50	8.50	16.90	66.00	280.00	8–23		42
6" (150)	151.00	240.00	241.00	363.50		131.50		190.00	20.00	280.00	120.00	102.00	70.00	10.50	8.50	16.90	72.00	280.00	8–23		48
8" (200)	200.00	290.00	298.00	420.20	425.30	158.70	163.80	219.50	26.00	340.00	120.00	102.00	70.00	10.50	8.50	21.90	82.00	280.00	12–23	8–23	80
Remark: H3 is the height of the stem above the platform.

A KBVE new electric actuated butterfly valve

Material: UPVC, CPVC, PPH, and PVDF
Size: 1-1/2" – 12"; 50 mm – 315 mm; DN40 – DN300
Standard: ANSI, DIN, and JIS
Joint: Flanged
Working pressure:
- 1-1/2" – 6" 150 psi
- 8" – 12" 120 psi
Operation temperature:
- UPVC (5 °C to 55 °C)
- CPVC & PPH (5 °C to 90 °C)
- PVDF (-20 °C to 120 °C)
- Body color: UPVC (dark gray), CPVC (light gray), PPH (beige), and PVDF (ivory white)

Feature

Actuators pass impact test, acid and alkali test, materials conform to SGS.
Valve opening adjustable from 15° to 90°.
Actuator to valve connection according to EN ISO 5211.
Modified PP valve disc, better performance
Thickened valve body and gasket
Materials comply with drinking water standards
Nano-modified raw material to improve the pressure resistance and impact resistance
Adding anti-UV absorbers and antioxidants to improve the weathering and aging resistance
100% working pressure testing
Mechanical gear protection function
External wiring cover
EA-A6 is SGS IP67 certified; EA-A7 is SGS IP66 certified.
Seven-stage deceleration, higher transmission ratio, lower power consumption, and higher torque.

Material List

S/N	Part	Specification	Qty.
47	Gasket	EPDM/VITON	1
41	O-ring	EPDM/VITON	4
32	Washer	SUS304/SUS316	4
30	Bolt	SUS304/SUS316	4
21	Electrical actuator	-	1
19	Bottom cap	PP + Fiber	1
11	Supporting platform	UPVC/CPVC/PPH/PVDF	1
05	Stem	SUS304/SUS316	1
03	Valve disc	PP + Fiber	1
01	Body	UPVC/CPVC/PPH/PVDF	1

UPVC/CPVC

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Table 2: KBVE New Electric Actuated Butterfly Valve (Unit: mm)
Size	d	C1	C2	H	H1	H2	D	D1	M1	M2	d1	d2	S	W	P	n-φe		Operating Torque (N·m)
Size	d	C1	C2	H	H1	H2	D	D1	M1	M2	d1	d2	S	W	P	JIS	DIN/ANSI	Operating Torque (N·m)
1-1/2" (40)	40.00	98.00	110.00	269.90	65.40	114.00	148.00	105.00	70.00	50.00	8.50	6.50	13.90	34.00	180.00	4–19		12
2" (50)	52.00	120.00	125.00	287.50	73.00	124.00	162.00	105.00	70.00	50.00	8.50	6.50	13.90	44.00	180.00	4–19		15
2-1/2" (65)	66.00	140.00	145.00	300.70	81.20	129.00	179.00	105.00	70.00	50.00	8.50	6.50	13.90	46.00	180.00	4–19		18
3" (80)	78.50	150.00	160.00	392.00	90.00	145.00	195.00	120.00	102.00	70.00	10.50	8.50	13.90	57.00	212.00	8–19		20
4" (100)	104.00	175.00	190.50	429.50	112.50	160.00	225.00	120.00	102.00	70.00	10.50	8.50	13.90	60.00	212.00	8–19		30
5" (125)	127.00	210.00	216.00	451.50	119.50	175.00	255.00	120.00	102.00	70.00	10.50	8.50	16.90	66.00	212.00	8–23		42
6" (150)	151.00	240.00	241.00	478.50	131.50	190.00	280.00	120.00	102.00	70.00	10.50	8.50	16.90	72.00	212.00	8–23		48
8" (200)	200.00	290.00	298.00	514.30	163.80	219.50	340.00	120.00	102.00	70.00	10.50	8.50	21.90	82.00	305.00	12–23	8–23	80

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Table 3: Electrical Actuator Specification
Type	Compatible Valve Size	Rated Wattage	Running Time (S)	Output Torque (kgf.cm)
EA-A6	1-1/2" – 2-1/2"	8W	12S	35
EA-A7	2-1/2" – 4"	15W	18S	100
EA-A8	5" – 8"	45W	16S	200
Remark: The output current of signal wire is 1.6 A, max. current is 3.2 A.

Material: UPVC, CPVC and PPH
Size: 1-1/2" – 12"; 50 mm – 315 mm; DN40 – DN300
Standard: ANSI, DIN, and JIS
Joint: Flanged
Working pressure:
- 1-1/2" – 6" 150 psi
- 8" – 12" 120 psi
Operation temperature:
- UPVC (5 °C to 55 °C)
- CPVC (5 °C to 90 °C)
- Body color: UPVC (dark gray), and CPVC (light gray)

Feature

Modified PP valve disc, better performance.
Thickened valve body and gasket.
Materials comply with drinking water standards.
Nano-modified raw material to improve the pressure resistance and impact resistance.
Adding anti-UV absorbers and antioxidants to improve the weathering and aging resistance.
ISO 5211 Installation platform is reserved, compatible to most of standardized electrical actuator and pneumatic actuator.

Material List

S/N	Part	Specification	Qty.
47	Gasket	EPDM/VITON	1
41	O-ring	EPDM/VITON	4
32	Washer	SUS304/SUS316	4
30	Bolt	SUS304/SUS316	4
22	Turbine operator	PP + Fiber	1
19	Bottom cap	PP + Fiber	1
11	Supporting platform	UPVC/CPVC	1
05	Stem	SUS304/SUS316	1
03	Disc	PP + Fiber	1
01	Body	UPVC/CPVC	1

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Table 4: KBVWN New Worm Geared Butterfly Valve (Unit: mm)
Size	d	C1	C2	H		H1		H2	D	D1	M1	M2	d1	d2	S	W	L1	L		n-φe		Operating Torque (N·m)
Size	d	C1	C2	DIN/ANSI	JIS	DIN/ANSI	JIS	H2	D	D1	M1	M2	d1	d2	S	W	L1	L		JIS	DIN/ANSI	Operating Torque (N·m)
1-1/2" (40)	40.00	98.00	110.00	255.40		65.40		114.00	148.00	105.00	70.00	50.00	8.50	6.50	13.90	34.00	183.00	4–19		12		1-1/2" (40)
2" (50)	52.00	120.00	125.00	273.00		73.00		124.00	162.00	105.00	70.00	50.00	8.50	6.50	13.90	44.00	183.00	4–19		15		2" (50)
2-1/2" (65)	66.00	140.00	145.00	286.20		81.20		129.00	179.00	105.00	70.00	50.00	8.50	6.50	13.90	46.00	183.00	4–19		18		2-1/2" (65)
3" (80)	78.50	150.00	160.00	311.00		90.00		145.00	195.00	120.00	102.00	70.00	10.50	8.50	13.90	57.00	183.00	8–19		20		3" (80)
4" (100)	104.00	175.00	190.50	348.50		112.50		160.00	225.00	120.00	102.00	70.00	10.50	8.50	13.90	60.00	183.00	8–19		30		4" (100)
5" (125)	127.00	210.00	216.00	370.50		119.50		175.00	255.00	120.00	102.00	70.00	10.50	8.50	16.90	66.00	183.00	8–23		42		5" (125)
6" (150)	151.00	240.00	241.00	397.50		131.50		190.00	280.00	120.00	102.00	70.00	10.50	8.50	16.90	72.00	183.00	8–23		48		6" (150)
8" (200)	200.00	290.00	298.00	454.20	459.30	158.70	163.80	219.50	340.00	120.00	102.00	70.00	10.50	8.50	21.90	82.00	183.00	12–23	8–23	80		8" (200)
10" (250)	251.00	350.00	362.00	530.00		197.00		257.00	410.00	135.00	125.00	102.00	12.50	10.50	21.90	92.00	183.00	12–25		180		10" (250)
12" (300)	290.00	400.00	431.50	609.00	611.60	231.00	233.60	302.00	485.00	135.00	125.00	102.00	12.50	10.50	26.90	98.00	183.00	16–25	12–25	400		12" (300)

A KBVPN new pneumatic actuated butterfly valve

Material: UPVC, CPVC, PPH, and PVDF
Size: 1-1/2" – 12"; 50 mm – 315 mm; DN40 – DN300
Standard: ANSI, DIN, and JIS
Joint: Flanged
Working pressure:
- 1-1/2" – 6" 150 psi
- 8" – 12" 120 psi
Min. air pressure (actuator): 45 PSI
Max. air pressure (actuator): 120 PSI
Operation temperature:
- UPVC (5 °C to 55 °C)
- CPVC & PPH (5 °C to 90 °C)
- PVDF (-20 °C to 120 °C)
- Body color: UPVC (dark gray), CPVC (light gray), PPH (beige), and PVDF (ivory white)

Feature

Lightweight actuator with corrosion resistance.
Modified PP valve disc, better performance.
Thickened valve body and gasket.
Materials comply with drinking water standards.
Nano-modified raw material to improve the pressure resistance and impact resistance.
Adding anti-UV absorbers and antioxidants to improve the weathering and aging resistance.

Material List

S/N	Part	Specification	Qty.
47	Gasket	EPDM/VITON	1
41	O-ring	EPDM/VITON	4
32	Washer	SUS304/SUS316	4
30	Bolt	SUS304/SUS316	4
22	Pneumatic head	ALLOY / PP+ Fiber	1
19	Bottom cap	PP + Fiber	1
11	Supporting platform	UPVC/CPVC/PPH/PVDF	1
05	Stem	SUS304/SUS316	1
03	Valve disc	PP + Fiber	1
01	Body	UPVC/CPVC/PPH/PVDF	1

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Table 5: KBVPN New Pneumatic Actuated Butterfly Valve (Unit: mm)
Size	d	C1	C2	H		H1		H2	D	D1	M1	M2	d1	d2	S	W	P	n-φe		Operating Torque (N·m)
Size	d	C1	C2	DIN/ANSI	JIS	DIN/ANSI	JIS	H2	D	D1	M1	M2	d1	d2	S	W	P	JIS	DIN/ANSI	Operating Torque (N·m)
1-1/2" (40)	40.00	98.00	110.00	300.40		65.40		114.00	148.00	105.00	70.00	50.00	8.50	6.50	13.90	34.00	168.00	4–19		12
2" (50)	52.00	120.00	125.00	318.00		73.00		124.00	162.00	105.00	70.00	50.00	8.50	6.50	13.90	44.00	168.00	4–19		15
2-1/2" (65)	66.00	140.00	145.00	343.20		81.20		129.00	179.00	105.00	70.00	50.00	8.50	6.50	13.90	46.00	219.00	4–19		18
3" (80)	78.50	150.00	160.00	368.00		90.00		145.00	195.00	120.00	102.00	70.00	10.50	8.50	13.90	57.00	219.00	8–19		20
4" (100)	104.00	175.00	190.50	420.50		112.50		160.00	225.00	120.00	102.00	70.00	10.50	8.50	13.90	60.00	249.00	8–19		30
5" (125)	127.00	210.00	216.00	442.50		119.50		175.00	255.00	120.00	102.00	70.00	10.50	8.50	16.90	66.00	249.00	8–23		42
6" (150)	151.00	240.00	241.00	481.50		131.50		190.00	280.00	120.00	102.00	70.00	10.50	8.50	16.90	72.00	274.00	8–23		48
8" (200)	200.00	290.00	298.00	589.20	594.30	158.70	163.80	219.50	340.00	120.00	102.00	70.00	10.50	8.50	21.90	82.00	315.00	12–23	8–23	80
10" (250)	251.00	350.00	362.00	665.00		197.0		257.00	410.00	135.00	125.00	102.00	12.50	10.50	21.90	92.00	417.00	12–25		180
12" (300)	290.00	400.00	431.50	764.00	766.60	231.00	233.60	302.00	485.00	135.00	125.00	102.00	12.50	10.50	26.90	98.00	452.00	16–25	12–25	400

Table 6: Pneumatic Actuated Acting Type: DA (Double Acting), NC (Normally Closed), NO (Normally Open)
Size	2-1/2"	3"	4"	5"	6"	8"	10"
Control Pressure (Bar)	4–8
NAMUR Standard Air Interface	G1/4"
Opening Cylinder Volume (L)	0.3	0.3	0.5	0.5	0.7	1.2	2.4
Closing Cylinder Volume (L)	0.5	0.5	0.8	0.8	1.1	1.8	3.8
Air consumption depends on air pressure, switch stroke, volume, and frequency of action. Calculation is as follows: L/min = cylinder volume (open cylinder volume + close cylinder volume) × [supplied air pressure (Kpa) ÷ 101.3] × times/min.

Working Principle

KBV series butterfly valve open and close diagram

KBV Series Butterfly Valve Working Principle

KBV series butterfly valve controls the flow rate and direction of fluid by rotating the valve disc. When the valve disc is in the closed position, it forms a sealed space between the disc and the valve seat to prevent fluid leakage. As the valve disc rotates to the open position, the gap between the disc and the seat gradually increases, thus allowing fluid to flow through the butterfly valve.

Videos

Downloads

Here are product catalogue and data sheet for your reference. more information just contact us.