One-Stop Water Treatment Solutions Provider

search

DE
FR
ES
PT
IT
FIL
TR
RU
AR
VI

Home Parts Thermoplastic Valves CategoryKCV Series Check Valve

KCV Series Check Valve

Thermoplastic Valves

KCV Series Check Valve

KCV Series Check Valve Safeguards Fluid Systems From Backflow Interference

KCV series check valve is a type of valve whose opening and closing part is a circular valve disc that operates based on its own weight and the pressure of the medium to prevent the backflow of the medium. Its main function is to prevent the reverse flow of the medium. When the direction of the medium flow is normal, the valve opens, allowing the fluid to pass through; when the direction of the medium flow reverses, the valve closes, preventing the fluid from flowing back. Check valves are widely used in piping systems to prevent the reverse flow of the medium from affecting the equipment and system.

Specifications
Working Principle
Video

Specification

KCVS-100 Single Union Swing Check Valve
KCVB-100 Double Union Swing Check Valve
KCVB-200 Swing Check Valve Flange Type
KCVC-100 Swing Check Valve Socket Type
KCVC-200 Flanged Swing Check Valve

2 KCVS-100 single union swing check valves

Material: UPVC, CPVC, PPH, and PVDF
Size: 1/2" – 2"; 20 mm – 63 mm; DN15 – DN50
Standard: ANSI, DIN, JIS, and CNS
Joint: Socket or threaded (NPT, PT, and BSPF), and socket fusion
Working pressure: 150 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)
Mini shutoff pressure: ≥ 0 kg

Feature

Swing disc design, and better waterstop.
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.
Horizontal or vertical installation is allowed.

Material List

S/N	Part	Specification	Qty.
47	Gasket	EPDM/VITON	1
44	O-ring	EPDM/VITON	1
42	O-ring	EPDM/VITON	1
17	Union end	UPVC/CPVC	1
15	Nut	UPVC/CPVC	1
08	Adjust seat	UPVC/CPVC	1
03	Disc	PVDF	1
01	Body	UPVC/CPVC	1

Read MoreRead Less

Table 1: KCVS-100 Single Union Swing Check Valve (Unit: mm)
Size	d	d1				d2				D	L	L1	L2
Size	d	ANSI	DIN	JIS	CNS	ANSI	DIN	JIS	CNS	D	L	L1	L2
1/2" (15)	15	21.54	20.30	22.40	22.40	21.23	20.10	21.73	21.90	54.00	87.60	22.30	22.30
3/4" (20)	20	26.87	25.30	26.45	26.40	26.57	25.10	25.69	25.90	63.00	103.50	25.50	25.50
1" (25)	25	33.65	32.30	32.55	34.50	33.27	32.10	31.70	33.90	73.50	120.60	28.60	28.60
1-1/4" (32)	32	42.42	40.30	38.60	42.50	42.04	40.10	37.65	41.90	84.50	135.00	32.00	32.00
1-1/2" (40)	40	48.56	50.30	48.70	48.60	48.11	50.10	47.74	47.90	98.00	144.00	35.00	35.00
2" (50)	50	60.63	63.30	60.80	60.60	60.17	63.10	59.78	59.90	119.00	163.00	38.00	38.00

3 KCVB-100 double union swing check valves

Material: UPVC, CPVC, PPH, and PVDF
Size: 1/2" – 2"; 20 mm – 63 mm; DN15 – DN50
Standard: ANSI, DIN, JIS, and CNS
Joint: Socket or threaded (NPT, PT, and BSPF), and socket fusion
Working pressure: 150 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 / white), CPVC (light gray), PPH (beige), and PVDF (ivory white)
Mini shutoff pressure: ≥ 0 kg

Feature

Swing disc design, and better waterstop.
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.
Horizontal or vertical installation is allowed.

Material List

S/N	Part	Specification	Qty.
47	Gasket	EPDM/VITON	1
44	O-ring	EPDM/VITON	1
42	O-ring	EPDM/VITON	1
17	Union end	UPVC/CPVC	2
15	Nut	UPVC/CPVC	2
08	Adjust seat	UPVC/CPVC	1
03	Disc	PVDF	1
01	Body	UPVC/CPVC	1

Read MoreRead Less

Table 2: KCVB-100 Double Union Swing Check Valve (Unit: mm)
Size	d	d1				d2				D	L	L1
Size	d	ANSI	DIN	JIS	CNS	ANSI	DIN	JIS	CNS	D	L	L1
1/2" (15)	15	21.54	20.30	22.40	22.40	21.23	20.10	21.73	21.90	54.00	93.60	22.30
3/4" (20)	20	26.87	25.30	26.45	26.40	26.57	25.10	25.69	25.90	63.00	110.00	25.50
1" (25)	25	33.65	32.30	32.55	34.50	33.27	32.10	31.70	33.90	73.50	125.60	28.60
1-1/4" (32)	32	42.42	40.30	38..60	42.50	42.04	40.10	37.65	41.90	84.50	142.00	32.00
1-1/2" (40)	40	48.56	50.30	48.70	48.60	48.11	50.10	47.74	47.90	98.00	153.00	35.00
2" (50)	50	60.63	63.30	60.80	60.60	60.17	63.10	59.78	59.90	119.00	173.00	38.00

A KCVB-200 swing check valve flange type

Material: UPVC, CPVC, PPH, and PVDF
Size: 1/2" – 2"; 20 mm – 63 mm; DN15 – DN50
Standard: ANSI, DIN, JIS, and CNS
Joint: flanged
Working pressure: 150 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 / white), CPVC (light gray), PPH (beige), and PVDF (ivory white)
Mini shutoff pressure: ≥ 0 kg

Feature

Swing disc design, and better waterstop.
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.
Horizontal or vertical installation is allowed.

Material List

S/N	Part	Specification	Qty.
47	Gasket	EPDM/VITON	1
44	O-ring	EPDM/VITON	2
42	O-ring	EPDM/VITON	1
26	Nut	UPVC/CPVC/PPH/PVDF	2
17	Flange	UPVC/CPVC/PPH/PVDF	2
15	Buckle	UPVC/CPVC/PPH/PVDF	2
08	Adjust seat	UPVC/CPVC/PPH/PVDF	1
03	Disc	PVDF	1
01	Body	UPVC/CPVC/PPH/PVDF	1

Read MoreRead Less

Table 3: KCVB-200 Swing Check Valve Flange Type (Unit: mm)
Size	d	C			D	L	n-φe
Size	d	ANSI	JIS	DIN	D	L	n-φe
1/2" (15)	15	60.50	70.00	65.00	95.00	126.00	4–15
3/4" (20)	20	70.00	75.00	75.00	105.00	139.00	4–15
1" (25)	25	79.20	90.00	85.00	125.00	160.40	4–19
1-1/4" (32)	32	89.00	100.00	100.00	140.00	186.00	4–19
1-1/2" (40)	40	98.00	105.00	110.00	150.00	201.00	4–19
2" (50)	50	121.00	120.00	125.00	165.00	219.00	4–19

A KCVC-100 swing check valve socket type

Material: UPVC, CPVC, PPH, and PVDF
Size: 2-1/2" – 6"; 75 mm – 160 mm; DN65 – DN150
Standard: ANSI, DIN, JIS, and CNS
Joint: Socket
Working pressure: 150 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)
Mini shutoff pressure: ≥ 0 kg

Feature

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.
Horizontal or vertical installation is allowed.

Material List

S/N	Part	Specification	Qty.
47	Gasket	EPDM/VITON	1
45	O-ring	EPDM/VITON	1
34	Nut	SUS304/SUS316	1
32	Washer	SUS304/SUS316	8–12
30	Bolt	SUS304/SUS316	8–12
26	Buckle	UPVC/CPVC/PPH/PVDF	8–12
03	Disc	PVDF	2
02	Upper body	UPVC/CPVC/PPH/PVDF	1
01	Lower body	UPVC/CPVC/PPH/PVDF	1

Read MoreRead Less

Table 4: KCVC-100 Swing Check Valve Socket Type (Unit: mm)
Size	d	d1				d2				D	L	L1
Size	d	ANSI	DIN	JIS	CNS	ANSI	DIN	JIS	CNS	D	L	L1
2-1/2" (65)	63	73.38	75.30	76.60	76.70	72.85	75.10	75.87	75.90	168.00	204.00	47.00
3" (80)	75	89.31	90.40	89.60	89.70	88.70	90.10	88.83	88.90	172.00	230.00	53.00
4" (100)	95	114.76	110.40	114.70	115.00	114.10	110.10	113.98	113.80	205.00	274.00	62.00
6" (150)	150	168.83	160.50	166.20	166.20	168.00	160.20	165.30	164.60	290.00	390.00	86.50

Material: UPVC, CPVC, PPH, and PVDF
Size: 2-1/2" – 8"; 75 mm – 225 mm; DN65 – DN200
Standard: ANSI, DIN, and JIS
Joint: Flanged
Working pressure: 150 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)
Mini shutoff pressure: ≥ 0 kg

Feature

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.
Horizontal or vertical installation is allowed.

Material List

KCVC-200 flanged swing check valve dimensions 1 with part names and size labels

2-1/2" – 4"

KCVC-200 flanged swing check valve dimensions 2 with part names and size labels

5" Ref.

KCVC-200 flanged swing check valve dimensions 3 with part names and size labels

6" Ref.

KCVC-200 flanged swing check valve dimensions 4 with part names and size labels

8" Ref.

Read MoreRead Less

S/N	Part	Specification	Qty.
47	Gasket	EPDM/VITON	1
45	O-ring	EPDM/VITON	1
34	Nut	SUS304/SUS316	8–12 (2.5"–6") 12 (8")
32	Washer	SUS304/SUS316	8–12 (2.5"–6") 12 (8")
30	Bolt	SUS304/SUS316	8–12 (2.5"–6") 12 (8")
26	Buckle	UPVC/CPVC	2
17	Flange	UPVC/CPVC/PPH/PVDF	2
03	Disc	PVDF	1
02	Upper body	UPVC/CPVC	1
01	Lower body	UPVC/CPVC	1

Table 5: KCVC-200 Flanged Swing Check Valve (2-1/2" – 4", unit: mm)
Size	d	D	L	C			n-φe
Size	d	D	L	ANSI	JIS	DIN	ANSI	DIN/JIS
2-1/2"	63	182.00	280.00	139.50	140.00	145.00	4–19
3"	75	200.00	304.00	152.40	150.00	160.00	4–19	8–19
4"	95	228.00	356.00	190.50	175.00	180.00	8–19
Remark: If you need van stone, please contact sales.

Table 6: KCVC-200 Flanged Swing Check Valve (5" Ref. & 6" Ref., unit: mm)
Size	d	D		L	C			n-φe
Size	d	ANSI	DIN/JIS	ANSI/DIN/JIS	ANSI	JIS	DIN	ANSI	DIN/JIS
5"	95	256.00	250.00	290.00	216.00	210.00	210.00	8–22	8–23
6"	150	285.00	285.00	566.00	241.00	240.00	240.00	8–22	8–23

Table 7: KCVC-200 Flanged Swing Check Valve (8" Ref., unit: mm)
Size	d	D	L	C	n-φe
8"	150	343.00	422.00	298.00	8–23

Working Principle

KCV series check valve opens and closes the valve disc through the flow of the medium itself. The medium flows in the specified direction, and when the flow pressure exceeds the opening pressure of the check valve, the valve disc is pushed open by the fluid pressure, thereby allowing the flow of the medium in the pipeline. Conversely, when the medium in the pipeline flows back, the valve disc is pressed against the body of the check valve by the fluid pressure, closing the valve and thus cutting off the flow of the medium in the pipeline. Moreover, the greater the pressure of the backflow medium, the tighter the valve disc closes, resulting in a better sealing effect.