Clamp Type Check Valve

In hygienic processing systems, unexpected backflow can contaminate products, damage pumps, interrupt production, and increase maintenance costs.

VTY Sanitary Clamp Check Valves are engineered to provide reliable one-way flow control in breweries, dairy plants, pharmaceutical facilities, beverage production lines, and liquid cooling systems. Manufactured from forged 316L stainless steel and equipped with FDA-compliant sealing materials, our valves help maintain product purity, process stability, and operational efficiency even under demanding sanitary conditions.

From CIP cleaning systems to high-purity process pipelines, VTY delivers dependable protection where reliability matters most.

Key features

1.Equipment and Process Protection

2.Low Cost Option for Horizontal Mounting

3.Prevent any backflow of process media within the pipe system

4.Reliable and multi-purpose safety devices with long life-time

5.Suitable for horizontal and vertical mounting even at low differential pressures

6.Low space requirements

Metal Material

Product Contact Parts: 304L/316L (Forged)

Non-product Contact Parts: 304

Provide EN 10204 3.1B Certificate

Seal Material

Standard: EPDM

Option: NBR, FPM, Silicone

All seal materials comply with FDA 177.2600

Temperature

Running working temperature: -20~+135℃ (EPDM)

Sterilization temperature: 150℃ (max 20 min)

Pressure

Opening pressure ≈ 0.08 bar

Max working pressure=10bar

Roughness

Internal surface: Ra≤0.8μm

External surface: Ra≤1.6μm

Connection

Connection standard:

Welded End: DIN 11850 series 2

Welded End: INCH pipe standard

Connection method: Welding, thread, clamp, flange

Why Global Equipment Manufacturers Choose VTY?

Forged Stainless Steel Construction

Unlike cast valve bodies commonly found in the market, VTY uses forged stainless steel for enhanced strength, corrosion resistance, and service life.

Precision Machined by 134 CNC Centers

More than 90% of our CNC equipment are MAZAK machining centers, ensuring consistent dimensional accuracy and sealing performance.

Verified Surface Finish

Each production batch can be tested for surface roughness, ensuring compliance with hygienic processing requirements.

Full Material Traceability

EN 10204 3.1 material certificates are available for quality verification and project documentation.

Exported to Europe for More Than 10 Years

95% of our products are supplied to European markets including Germany, Denmark, Netherlands, Italy, France, and Spain.

Applications

1. High-Temperature Process Lines

Clamp check valves are suitable for process systems operating at elevated temperatures. Stainless steel valve bodies and sealing materials can withstand demanding thermal conditions while maintaining reliable sealing performance. They are commonly used in food processing, pharmaceutical, chemical, and thermal fluid transfer systems.

2. Viscous Fluid Handling

The valve's streamlined flow path and larger internal passage help reduce flow resistance when handling high-viscosity media. It is suitable for products such as syrups, sauces, cellulose slurries, oils, asphalt-based materials, and other fluids that require smooth flow and minimal pressure loss.

3. Pressurized Pipeline Systems

Designed for continuous operation under pressure, clamp check valves automatically prevent reverse flow and protect pumps, tanks, and processing equipment from backflow-related damage. They help maintain process stability and reduce the risk of system interruptions.

4. Hygienic Processing Environments

The sanitary design features smooth internal surfaces, minimal dead zones, and easy disassembly for cleaning and inspection. This makes the valve suitable for applications requiring strict hygiene standards, including dairy, beverage, food, biotechnology, and pharmaceutical production lines.

What Problems Can This Valve Solve?

Prevent Product Contamination

Reverse flow can introduce unwanted particles, bacteria, or process fluids into clean production lines. Our sanitary check valve automatically closes when flow reverses, helping maintain hygienic integrity.

Protect Pumps and Expensive Equipment

Backflow pressure can damage centrifugal pumps, heat exchangers, and filling systems. The spring-loaded design responds instantly to pressure changes.

Reduce Downtime

Reliable non-return protection minimizes unexpected shutdowns caused by process interruptions.

Improve CIP Cleaning Efficiency

The smooth internal structure minimizes residue accumulation and supports easier cleaning.

Manufactured in a 13,000㎡ Production Facility

VTY operates a modern manufacturing facility equipped with:

✔ 134 CNC machining centers

✔ 180 skilled employees

✔ Surface polishing production lines

✔ Laser cutting equipment

✔ Independent quality inspection laboratory

✔ Coordinate measuring machines (CMM)

✔ Spectrometers

✔ Surface roughness testers

✔ Hardness testing equipment

This integrated production capability enables consistent quality, fast lead times, and reliable OEM manufacturing support.

ZH4-111

DIN Clamp Check Valve, Male End

Siz	A¹	A²	E				L
10	9	10	RD 28×1/8"				63
15	15	16	RD 34×1/8"				63
20	19	20	RD 44×1/6"				97
25	25	26	RD 52×1/6"				97
32	31	32	RD 58×1/6"				97
40	37	38	RD 65×1/6"				97
50	49	50	RD 78×1/6"				97
65	66	66	RD 95×1/6"				102
80	81	81	RD 110×1/4"				112
100	100	100	RD 130×1/4"				118

ZH4-133

DIN Clamp Check Valve, Welded End

Siz	A'	A²			T	L
10	12	13			1.5	63
15	18	19			1.5	63
20	22	23			1.5	97
25	28	29			1.5	97
32	34	35			1.5	97
40	40	41			1.5	97
50	52	53			1.5	97
65	70	70			2.0	102
80	85	85			2.0	112
100	104	104			2.0	118

ZH4-113

DIN Clamp Check Valve, Male/Welded

Siz	A	T	E				L
10	9/10	1.5	RD 28×1/8"				63
15	15/16	1.5	RD 34×1/8"				63
20	19/20	1.5	RD 44×1/6"				97
25	25/26	1.5	RD52×1/6"				97
32	31/32	1.5	RD58×1/6"				97
40	37/38	1.5	RD65×1/6"				97
50	49150	1.5	RD 78×1/6"				97
65	66	2.0	RD 95×1/6"				102
80	81	2.0	RD 110×1/4"				112
100	100	2.0	RD 130×1/4"				118

ZH4-122

DIN Clamp Check Valve, Clamp End

Size	A1	A2			B	L
10	9	10			34.0	63
15	15	16			34.0	63
20	19	20			34.0	97
25	25	26			50.5	97
32	31	32			50.5	97
40	37	38			50.5	97
50	49	50			64.0	97
65	66	66			91.0	102
80	81	81			106.0	112
100	100	100			119.0	118

ZH4-333

INCH Clamp Check Valve, Welded End

Size	A	T	L
1"	25.4	1.50	97
11/4"	31.8	1.50	97
11/2"	38.1	1.50	97
2"	50.8	1.50	97
21/2"	63.5	1.50	102
3"	76.2	1.65	108
4"	101.6	2.11	118

ZH4-322

INCH Clamp Check Valve, Clamp End

Size	A	B	L
1"	22.5	50.5	97
11/4"	29.5	50.5	97
11/2"	35.5	50.5	97
2"	48.5	64.0	97
21/2"	60.5	77.5	102
3"	72.9	91.0	108
4"	97.38	119.0	118

ZH4-211

SMS Clamp Check Valve, Male End

Size	A	E	L
25	22.5	RD 40×1/6"	97
32	29.5	RD 48×1/6"	97
38	35.5	RD 60×1/6"	97
51	48.5	RD 70×1/6"	97
63.5	60.5	RD 85×1/6"	102
76	72.9	RD 98×1/6"	108
101.6 B	97.6	RD 132×1/6"	118
101.6 S	97.6	RD 125×1/4"	118

ZH4-233

SMS Clamp Check Valve, Welded End

Size	A	T	L
25	25.4	1.50	97
32	31.8	1.50	97
38	38.1	1.50	97
51	50.8	1.50	97
63.5	63.5	1.50	102
76	76.2	1.65	108
101.6	101.6	2.11	118

ZH4-213

SMS Clamp Check Valve, Male/Welded

Size	A	T	E	L
25	22.5	1.50	RD 40×1/6"	97
32	29.5	1.50	RD 48×1/6"	97
38	35.5	1.50	RD 60×1/6"	97
51	48.5	1.50	RD 70×1/6"	97
63.5	60.5	1.50	RD 85×1/6"	102
76	72.9	1.65	RD 98×1/6"	108
101.6 B	97.6	2.11	RD 132×1/6"	118
101.6S	97.6	2.11	RD 125×1/4"	118

ZH4-222

SMS Clamp Check Valve, Clamp End

Size	A	B	L
25	22.5	50.5	97
32	29.5	50.5	97
38	35.5	50.5	97
51	48.5	64.0	97
63.5	60.5	77.5	102
76	72.9	91.0	108
101.6	97.38	119.0	118