Japanese Standard Marine Valves JIS F7376 Cast Iron 10K Angle Check Valves

• Customization: Available
• Media: Water
• Temperature: Ordinary Temperature
• Model NO.: JIS F7376
• Material: Iron
• Connection Form: Flange
• Structure: Angle
• Pressure: Low 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 F7376
• Trademark: Customized
• Origin: China
• HS Code: 8481804090

Product Description

 

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!

Rating	Size	d	L	L1	H	H'	FF Flange			W
							D	C	t
5K	50A	50	210	100	270	240	130	105	16	160
	65A	65	250	115	300	255	155	130	18	180
JIS F7305 /7353 /7306/7354	80A	80	280	130	310	265	180	145	18	180
	100A	100	340	150	360	310	200	165	20	224
	125A	125	410	170	390	330	235	200	20	250
	150A	150	480	190	415	380	265	230	22	280
	200A	200	570	220	530	450	320	280	24	315
	250A	250	740	275	650	540	385	345	26	355
	300A	300	840	310	740	610	430	390	28	400
	350A	335	940	360	840	690	480	435	30	500
	400A	380	1050	395	940	770	540	495	30	560
10K	50A	50	220	120	285	255	155	120	20	160
	65A	65	270	130	310	270	175	140	22	200
JIS F7307 /7375 /7308 /7376	80A	80	300	140	320	275	185	150	22	200
	100A	100	350	160	370	315	210	175	24	250
	125A	125	420	180	420	360	250	210	24	280
	150A	150	490	205	470	405	280	240	26	315
	200A	200	570	230	555	475	330	290	26	355
	250A	250	740	290	630	570	400	355	30	450
	300A	300	840	320	770	645	445	400	32	500
	350A	335	-	360	-	710	490	445	34	560
	400A	380	-	420	-	790	560	510	36	630
16K	50A	50	220	120	285	255	155	120	22	160
	65A	65	270	130	310	270	175	140	22	200
JIS F 7309 /7377 /7310 /7378	80A	80	300	140	340	295	200	160	24	224
	100A	100	350	170	385	330	225	185	26	250
	125A	125	430	200	455	390	270	225	26	315
	150A	150	500	225	510	435	305	260	28	355
	200A	200	570	250	630	540	350	305	30	450
NO.	Parts	Material
1	Body	FC200
2	Bonnet	FC200
3	Handwheel	FC200
4	Disc	CAC406(BC6)orSCS2
5	Valve seat	CAC406(BC6)orSCS2
6	Stud nut	SCS2
7	Hex.nutScrewed bonnet bush	C3604
8	Seat ring	C3604
9	Packing gland	CAC406(BC6)
10	Stem	SUS403
11	Stud bolt	SS400
12	Stud bolt	SS400
13	Hex. nut	SS400
14	Hex. nut	SS400
15	Hex. nut	SS400
16	Lock pin	SS400
17	Split pin	C2600
18	Disc lock washer	C2600
19	Packing	GRAPHITE
20	Gasket	NON ASBESTOS
21	Name plate	C2801

Company

Workshop

Packaging & Shipping

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.