3A Sanitary Welded Check Valves are available in sizes from 3/4" to 4", compliant with international standards including DIN, 3A, SMS, ISO, IDF, and DS. All fluid-wetted components are constructed from SS304 or SS316L stainless steel. As a type of non-return valve, Hygienic Check Valves automatically regulate flow by opening/closing the disc based on the medium's pressure differential. For specific requirements or custom solutions, please contact us for detailed discussions. 
Size: 3/4" - 4"
Standard: DIN, 3A, SMS, ISO, IDF, DS
Material: All parts welted with fluids are made of SS304 or SS316L
Seat Material: Silicone (optional for EPDM, Viton)
Connection: Welded, Tri-clamp, Threaded, Flanged, Union Type
Surface: Ra≤0.8μm
Technicial Specifications:
Working temperature: -10℃-120℃ (EPDM)
Max. working pressure: 10 bar.
Opening pressure:
0.3bar(DN25)
0.2bar(DN32-DN40)
0.1bar(DN50-DN100)
3A Sanitary Welded Check Valves KS-CKV1002
| Size | H | D | D1 | t | Model No. |
| 3/4" | 81.0 | 87.0 | 19.0 | 1.5 | KS-CKV1002-75 |
| 1" | 81.0 | 87.0 | 25.4 | 1.5 | KS-CKV1002-100 |
| 1 1/4" | 81.0 | 87.0 | 31.8 | 1.5 | KS-CKV1002-125 |
| 1 1/2" | 81.0 | 87.0 | 38.1 | 1.5 | KS-CKV1002-150 |
| 45 | 91.0 | 100.0 | 45.0 | 1.5 | KS-CKV1002-45 |
| 2" | 91.0 | 100.0 | 50.8 | 2.0 | KS-CKV1002-200 |
| 57 | 91.0 | 100.0 | 57.0 | 2.0 | KS-CKV1002-57 |
| 2 1/2" | 95.0 | 115.0 | 63.5 | 2.0 | KS-CKV1002-250 |
| 3" | 101.0 | 128.0 | 76.2 | 2.0 | KS-CKV1002-300 |
| 3 1/2" | 101.0 | 128.0 | 89.0 | 2.0 | KS-CKV1002-350 |
| 4" | 110.0 | 164.0 | 101.6 | 2.0 | KS-CKV1002-400 |
| 108 | 110.0 | 164.0 | 108.0 | 2.0 | KS-CKV1002-108 |
The above dimensions are for reference only and are subject to actual conditions.
Q: Are you a manufacturer?
A: Yes
Q: Can your products reach to FDA, CE and 3A requirements?
A: Yes, all of our products can reach to the requirements of FDA, ISO and 3A.
Q:What you can supply?
A: We can supply Stainless Steel Sanitary Tubes, Sanitary Pipe Fittings, Sanitary Ball Valves , Sanitary Butterfly Valves, Sanitary Check Valves and Sanitary Diaphragm Valves;Various Sanitary Cleaning Equipments: Sanitary Sight Glasses, Sanitary Strainers/Filters, Sanitary Spray Balls, and other Hygienic Unions, Sanitary Ferrule & Adapters, Vacuum Components / Fittings.
Q: How long is your delivery time?
A: Depends on the quantity of the order.
It's around 15-20 days normally. If we have the products in stock, it will be about 5-7 days.
Q: What is your packing way?
Standard Export Packing: Bubble Bag with Carton, Standard Wooden Case, or as per your requirement.
Q: What is your payment terms?
A: We usually use the T/T, L/C, DP, DA, West Union payment terms.
Q: If you can supply samples?
A: Yes, we can provide samples production and service. Usually 3 to 5 days, the sample can be sent to your hands.
Q: How will you solve the quality problem?
A: Any problem happened to our products, we will do our best to help client to solve it, if you can't solve the problem in your local, please send back to us, we will repair or produce new one and send back to you.
Q: How to control your product quality?
We have perfect quality control system, All the products will be tested before shipping as qualified product, our test engineer will start inspection from raw material procurement, follow up production until the shipment, including
1) Raw materials inspection (mainly for the chemical composition and mechanical property),
2) Process inspection (mainly for size and cosmetic inspect),
3) Finished products (dimensional inspection, mechanical property, chemical composition, surface inspection, flaw detection, pressure test, etc.)
4) Inspection before shipment (including packaging, packaging materials, etc.)
Besides, we can also accept any third party inspection
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