JIS F7377 Marine Cast Iron Sdnr Valve

Product Details
Customization: Available
Media: Water
Temperature: Ordinary Temperature
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  • JIS F7377 Marine Cast Iron Sdnr Valve
  • JIS F7377 Marine Cast Iron Sdnr Valve
  • JIS F7377 Marine Cast Iron Sdnr Valve
  • JIS F7377 Marine Cast Iron Sdnr Valve
  • JIS F7377 Marine Cast Iron Sdnr Valve
  • JIS F7377 Marine Cast Iron Sdnr Valve
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  • Overview
  • Product Description
  • Company
  • Workshop
  • Packaging & Shipping
  • FAQ
  • Our Advantages
Overview

Basic Info.

Model NO.
JIS F7377
Material
Cast Iron
Connection Form
Flange
Structure
Straight
Pressure
Ordinary Pressure
Sealing Form
Gland Packings Globe Valve
Flow Direction
Reversing
Standard
JIS
Application
Industrial Usage, Water Industrial Usage, Household Usage, Marine Usage
Delivery
Express or by Sea
Price
Competitive
Production
in Stock
Capacity
100000 Pieces/Year
Transport Package
Plywood Box
Specification
JIS F7377
Trademark
Customized
Origin
China
HS Code
8481804090

Packaging & Delivery

Package Size
50.00cm * 50.00cm * 50.00cm
Package Gross Weight
25.000kg

Product Description

JIS F7377 Marine Cast Iron Sdnr ValveJIS F7377 Marine Cast Iron Sdnr ValveJIS F7377 Marine Cast Iron Sdnr ValveJIS F7377 Marine Cast Iron Sdnr ValveJIS F7377 Marine Cast Iron Sdnr Valve 
Product Description
We support OEM and the producing capacity is big,  fast shipment, professional design team for you, welcome to contact us!   

Marine Check Valve - Definition & Function

A marine check valve (or non-return valve) is a specialized one-way valve designed for shipboard piping systems to prevent backflow of liquids or gases (e.g., seawater, fuel, oil, or compressed air). It ensures fluid flows only in the intended direction, automatically closing when flow reverses-critical for safety and system integrity in marine environment.

Key Features of Marine Check Valves

Automatic Operation
Opens when forward pressure exceeds the cracking pressure.
Closes instantly if backflow or pressure loss occurs (e.g., pump failure).
Robust Marine-Grade Materials
Bronze, stainless steel, or duplex alloys for corrosion resistance in seawater.
Reinforced elastomers for sealing in oily or chemical-laden fluids.
Types Used on Ships
Swing Check Valve: Hinged disc swings open/closed (common in large pipes).
Lift Check Valve: Disc moves vertically (high-pressure systems).
Ball Check Valve: Uses a floating ball (compact, for viscous fluids).
Dual-Plate Check Valve: Spring-loaded plates for rapid closure (reduces water hammer).
Critical Marine Applications
Bilge & Ballast Systems: Prevents flooding back into pumps.
Fuel/Oil Transfer Lines: Stops contamination from reverse flow.
Cooling Water Circuits: Protects engines/heat exchangers.
Firefighting Systems: Maintains pressurized water supply.

Why Ships Rely on Check Valves

  • Safety: Avoids backflow-induced equipment damage (e.g., flooded bilges, pump cavitation).
  • Maintenance Reduction: No manual intervention needed-works passively.
  • Compliance: Meets IMO (International Maritime Organization) and class society (e.g., ABS, DNV) standards.

Check Valve vs. Other Marine Valves

Valve Type Primary Function Marine Use Case
Check Valve Block reverse flow Bilge pumps, fuel lines
Globe Valve Throttle/adjust flow Cooling water control
Gate Valve Fully open/close flow Main seawater intake
Ball Valve Quick on/off operation Fuel tank isolation
Need help selecting a check valve for a specific ship system? Ask away!
JIS F7377 refers to a type of Japanese Industrial Standard (JIS) globe valve. It specifically designates a screw-down, non-rising (SDNR) globe valve made of cast iron, rated for 16K pressure. These valves are commonly used in marine and industrial applications where precise fluid flow control is needed. 

Key Specifications of JIS F7377:
Type: SDNR (Screw-Down Non-Rising) Globe Valve.
Material: Cast Iron.
Pressure Rating: 16K.
Sizes: Typically available in sizes ranging from DN15 to DN300.
Applications: Suitable for various fluids including water, oil, and steam.
Standard: JIS F7377.
IMPA Code: 751152. 



JIS F7377 Marine Cast Iron Sdnr ValveJIS F7377 Marine Cast Iron Sdnr Valve
Body Bonnet FC20
Stem 2Cr13,SS304,SS316,bronze
Stem Nut Brass
Disc FC20
Hand wheel ASTM A536 65-45-12
Packing Graphite
JIS Marine Cast Iron Globe Valve 5K 10K 16K Standard
Design Standard KS B2350
Face to Face JIS B2031
Flange Standard JIS B2031
Testing Standard KS B 2304
port size DN50-DN350
structure Globe
application General
place of origin China
power Manual
customized support OEM, ODM, OBM
warranty 1 years
temperature of media High Temperature, Low Temperature, Medium Temperature
media Water,Oil,Gas,Steam
Connection Type flange x flange
Connection Size DN50-DN350
Bonnet Material Carbon Steel, Cast Iron
Disc Material Brass, 316 Stainless Steel
Application General
Suitable media Water,Steam,Oil,Steam
Color Blue, Red, Green, Black, Silver, Grey
Temperature of Media High/Low/Medium/Normal Temperature
Drive Way Manual
Body material Cast Iron Cast Steel
Standard JIS
Stem 2Cr13,SS304,SS316,bronze

JIS F7377 Marine Cast Iron Sdnr Valve

Company
  Qingdao Hongfeng Xianglong Valve Manufacturing Co., Ltd. is a professional marine valve manufacturing enterprise located in Mingcun Town, Pingdu City, Qingdao, China. We mainly produce marine valves and accessories like gate valve, globe valve, stop valve,check valve, stop-check valve, butterfly valve, ball valve, storm valve with Japanese, German, and national standards. Providing customers with high-quality and efficient products and services is our business philosophy, which we have always followed and continuously developed over the years.
  The company's predecessor has been deeply involved in railway parts for 16 years, with rich processing technology and advanced processing equipment. It has an experienced professional team that can carry out specialized production from product design, mold development, product casting, processing, assembly, and testing. High quality products have won us the trust of customers, and good service has established a long-term cooperative relationship.
  The company's factory has complete production and equipment, with an 8000 square meter production workshop and around 60 employees. It has a complete management team and management process, equipped with processing workshops, assembly workshops, pressure testing workshops, painting workshops, and complete valve production equipment such as lathes, milling machines, CNC machines, drilling machines, valve sealing test benches, and painting assembly lines. While ensuring internal quality, it provides customers with the shortest delivery time.
JIS F7377 Marine Cast Iron Sdnr ValveJIS F7377 Marine Cast Iron Sdnr Valve
Workshop

JIS F7377 Marine Cast Iron Sdnr ValveJIS F7377 Marine Cast Iron Sdnr ValveJIS F7377 Marine Cast Iron Sdnr Valve
Packaging & Shipping

JIS F7377 Marine Cast Iron Sdnr Valve

FAQ

Q: Are you trading company or manufacturer ?
A: We are manufacturer in PingDu city, Qingdao city, China.
Q: What's your product range?
A: We produce marine valves, like gate valve, check valve, stop valve, stop-check valve, globe valve, ball valve, butterfly valve and accessories .
Q: What's Execution Standard?
A:JIS/GB/DIN/BS etc.
Q: What's your Strong product ?
A: Gate valve.

Q: How long is your delivery time?
A: Normally it is 3 days if the goods are in stock. or it is 35 days if the goods are not in stock, it is based on the quantity.
Q: Do you provide samples ?

A: Yes, we could offer the sample. 
Q: What is your terms of payment ?
A: 30% deposit in advance and balance before shipment.

Q: What's the packing?
A: Plywood packing.
Q: Can I have my own logo on the products?
A: Yes, you can send us the drawing and we can make it.
Q: Can you produce the products based on my own drawing?
A: Yes.

Q: Which price terms can be accepted?
A: FOB,CIF etc.
Our Advantages

(1)Own production line and workshop to do all processes so can save cost and offer you competitive price.
(2)Own workshop to control schedule more flexibly.
(3)We can assure quality in every process in production line.
(4)Class Approval Certifications.
(5)Quality guarantee after sale.

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