H42W Prevent Medium Backflow Stainless Steel Cast Iron Underwater Foot Valve

• Customization: Available
• Media: Water
• Temperature: Ordinary Temperature
• Model NO.: YK2025061309
• Material: Cast Iron,Carbon Steel,SS304,SS316
• Connection Form: Flange
• Structure: Elevated
• Pressure: Ordinary Temperature
• Function: Nrvr Silence, Nrvz Silence, Nrvg Silence
• Sealing Form: Bellows Globe Valve
• Flow Direction: Unidirection
• Standard: ANSI BS DIN JIS
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Body: Cast Iron/Wcb/CF8/CF8m
• Screen: SS304/SS316
• Disc: Wcb/CF8/CF8m
• Seat: Wcb/2Cr13/SS304/SS316/Brass
• Stem: Wcb/2Cr13/SS304/SS316
• Spring: SS304/SS316
• Warranty: 18 Month
• OEM: Avaliable
• Transport Package: Wooden Box, Carton or Pallet
• Specification: DN50-DN600
• Trademark: YK Or customized
• Origin: China
• HS Code: 8481400000
• Production Capacity: 50000/Month
• Package Size: 100.00cm * 100.00cm * 100.00cm
• Package Gross Weight: 400.000kg

Product Description

The foot valve is a one-way valve installed at the bottom of the pump suction pipe. It is mainly used to prevent the liquid from flowing back when the pump stops working, keep the suction pipe full of liquid, and avoid the pump's "idle" or "air binding" phenomenon. The following is a detailed introduction to the foot valve:
1. Structure and working principle
- Structure:
- Valve body: usually made of cast iron, stainless steel or plastic, corrosion-resistant.
- Valve disc (valve disc): automatic opening and closing by spring or deadweight.
- Filter: prevent impurities from entering the pipeline and protect the pump body.
- Working principle:
- When the pump starts: the valve disc opens under negative pressure, and the liquid is sucked into the pipeline.
- When the pump stops: the valve disc closes due to deadweight or spring force, preventing the liquid from flowing back and maintaining the suction pipe full of liquid.
2. Main types
- Classification by design:
- Single-flap foot valve: simple structure, relying on the deadweight of the valve disc to seal.
- Double disc bottom valve: better sealing, suitable for high head or corrosive media.
- By connection method:
- Flange connection, threaded connection, welding, etc.
3. Application scenarios
- Centrifugal pump system: ensure that the pump can self-prime normally (such as farmland irrigation, fire protection system).
- Tank truck/storage tank: prevent medium backflow.
- Chemical/water treatment: corrosion-resistant material (such as PVC, stainless steel) bottom valve is used for corrosive liquids.
4. Advantages and disadvantages
- Advantages:
- Avoid frequent water injection of the pump and improve efficiency.
- Prevent water hammer effect and protect pipelines.
 

Product Parameters

 

Size(Inch)	50	65	80	100	125	150	200	250	300
H	166	201	221	265	300	360	470	568	653
PN10
D	165	185	200	220	250	285	340	395	445
Z	4	4	`8	8	8	8	8	12	12
d	18	18	18	18	18	23	23	23	23
D1	125	145	160	180	210	240	295	350	400
D2	102	122	138	158	188	212	268	320	370
PN16
D	165	185	200	220	250	285	340	405	460
Z	4	4	8	8	8	8	12	12	12
d	18	18	18	18	18	22	22	26	26
D1	125	145	160	180	210	240	295	355	770
D2	102	122	138	158	188	212	268	320	378

 

Certifications

Packaging & Shipping

Company Profile

 

Tianjin Yoakor Machinery Equipment Co., Ltd. founded in 2018, is an ISO 9001 certified company,committed to manufacturing valves& related products for water works and Environmental protection machinery equipment.Now the company has become a set design, development,production, manufacturing, sales in one of the valve manufacturing enterprises.The company's mechanical
processing, welding heat treatment, The production and testing center includes assembly pressure testing, physical and chemical testing, etc.
Yoakor mainly producebutterfly valve(Concentricand Eccentric), gate valve(Resilient seat,Metal seat),,check valve,globe valve,strainers,discharge valves, screw conveyors and environmentally friendly dust removal equipment. Supported by our many years' experience and expertise in this field.
We can also offerOEM &ODM products .Yoakor philosophy is to offer high cost performance products with optimal service.

FAQ

Q1: What certifications do you have?
A: We have ISO 9001, CE and WRAS certifications.

Q2: Can I get free samples?
A: Yes, samples are free, but the shipping cost is borne by you.

Q3: Can my logo be printed on the product?
A: Yes, if the order volume is not small, we can provide a simple logo design.

Q4: Can I customize the product?
A: Yes, you can customize it according to your customized needs such as color, size, logo, etc.

Q5: Can you produce products according to my drawings?
A: Yes, we can produce products according to your drawings.

Q6. What are your packaging terms?
A: Normally, we use standard export wooden cases to pack our goods.
If you have other packaging requirements, we can pack them in the form you specify. For example: cartons, pallets, etc.

Q7. What are your payment terms?
A: 30% by T/T as deposit, 70% paid before shipment. We will show you photos of the products and packaging before you pay the balance.

Q8. How long is your delivery time?
A: The specific delivery time depends on the product and order quantity.
Usually the delivery time ranges from 10-60 days.