What is the Minimum Order Quantity and lead time for B2B global sourcing?

Standard MOQ is 10 pcs per size for 1/2–40 in (DN15–DN1000). Custom specifications or special alloys are negotiable. As an integrated R&D and manufacturing factory, Xiangzheng offers flexible production schedules and global logistics support. Lead time depends on order quantity and configuration; please contact the sales team for confirmation.

Flanged Floating Ball Valve

Q: What are the main design advantages of the Xiangzheng flanged floating ball valve?

The floating-ball design uses line pressure to press the ball against the downstream seat, achieving pressure-assisted bidirectional bubble-tight shut-off. A blow-out-proof stem helps prevent external leakage under high pressure for safer operation in demanding services.

Q: Which international quality and industry certifications do Xiangzheng hold?

Xiangzheng manufactures under full-range quality inspection and complies with ASME, DIN, EN and JIS design standards. Certifications include TS, ISO 9001, CE and EAC (GOST), supporting imports into Europe, Russia, the Middle East and South America.

Q: What seat materials and pressure ratings are available for your valves?

Standard valves use reinforced PTFE soft seats for chemical resistance and bubble-tight sealing up to 150°C. Pressure ratings range from PN10 to PN420 / Class 150 to Class 2500; body materials include WCB, CF8 (304 SS) and CF8M (316 SS).

Q: Can these valves be automated with actuators?

Yes. Standard configuration is manual handle operation; worm gear, pneumatic actuator and electric actuator configurations are available for pipeline automation requirements.

Q: What are the installation and maintenance precautions for this flanged floating ball valve?

Bidirectional installation is allowed. Clean the pipeline before installation to prevent debris from scratching the PTFE seats. Avoid media with abundant solid particles; if the valve is idle for long periods, perform regular open/close cycles. Never disassemble under pressure.

The flanged floating ball valve from Xiangzheng is engineered for severe environments. We are a source factory specializing in valve R&D, production, manufacturing and global sales. All the ball valves undergo strict full-range quality inspection to guarantee stable and reliable performance, delivering premium fluid control solutions for chemical, gas, water treatment and heating industries.

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Product Description

The flanged floating ball valve is a type of ball valve that utilizes the pipeline pressure itself to push the floating ball towards the valve seat on the outlet side for sealing. Reinforced PTFE soft seats ensure bubble-tight shut-off, with excellent resistance to moderate elevated temperatures, water, oil, and a wide range of common corrosive media. The floating ball structure enables automatic pressure-assisted bidirectional tight shut-off, while the blow-out-proof stem ensures reliable operation safety. A quick 90° turn provides effortless switching with low torque. It is widely used in water supply pipelines, HVAC piping, chemical industry, natural gasand other fields.

Working Principle

The flanged floating ball valve utilizes a floating ball design to control media flow and shutoff. By rotating the handle, the valve stem drives the internal ball through a 90° turn. When the ball's through-hole aligns with the pipeline axis, the medium flows freely; when perpendicular, the flow path is completely closed.

The floating ball is not rigidly supported, allowing slight axial movement. Upon closure, the upstream line pressure forces the ball against the downstream valve seat, compressing the PTFE elastic seat to achieve a tight, bubble-tight seal with bidirectional shutoff capability.

The valve stem incorporates an anti-blowout design—the higher the line pressure, the tighter the stem seals against the body, effectively preventing external leakage and ensuring reliable operation in gas, chemical, and other demanding services. The flanged end connections provide a robust, leak-free joint with the pipeline while facilitating easy installation and maintenance.

Product Dimensions

Type	DN (mm)	NPS	L	D	D1	D2	D6	b-f	z-Φd	H	W
F Q41Y-25 H F Q341Y-25 H F Q641Y-25 H	15	1/2"	130	95	65	45	—	14-2	4-Φ14	65	115
	20	3/4"	140	105	75	55	—	14-2	4-Φ14	75	130
	25	1"	150	115	85	65	—	14-2	4-Φ14	85	150
	32	1-1/4"	165	135	100	78	—	16-2	4-Φ18	95	190
	40	1-1/2"	180	145	110	85	—	18-3	4-Φ18	105	230
	50	2"	200	160	125	100	—	20-3	4-Φ18	115	240
	65	2-1/2"	220	180	145	120	—	22-3	8-Φ18	145	280
	80	3"	250	195	160	135	—	22-3	8-Φ18	160	310
	100	4"	280	230	190	160	—	24-3	8-Φ23	185	330
	125	5"	320	270	220	188	—	28-3	8-Φ25	215	600
	150	6"	360	300	250	218	—	30-3	8-Φ25	245	800
	200	8"	400	360	310	278	—	34-3	12-Φ25	300	1000
	250	10"	450	425	370	332	—	36-3	12-Φ30	380	1200
F Q41Y-40 H F Q341Y-40 H F Q641Y-40 H	15	1/2"	130	95	65	40	40	16-2	4-Φ14	70	115
	20	3/4"	140	105	75	55	51	16-2	4-Φ14	80	130
	25	1"	150	115	85	65	58	16-2	4-Φ14	90	150
	32	1-1/4"	180	135	100	78	66	18-3	4-Φ18	100	190
	40	1-1/2"	200	145	110	85	76	18-3	4-Φ18	110	230
	50	2"	220	160	125	100	88	20-3	4-Φ18	120	240
	65	2-1/2"	250	180	145	120	110	22-3	8-Φ18	150	280
	80	3"	280	195	160	135	121	22-3	8-Φ18	170	310
	100	4"	320	230	190	160	150	24-3	8-Φ23	190	330
	125	5"	360	270	220	188	176	28-3	8-Φ25	220	600
	150	6"	400	300	250	218	204	30-3	8-Φ25	250	800
	200	8"	550	375	320	282	260	38-3	12-Φ30	390	1000
	250	10"	450	—	—	—	—	36-3	12-Φ30	380	1200
Y Q41F-64 H Y Q341F-64 H Y Q641F-64 H	15	1/2"	140	105	75	55	40	18-2	4-Φ14	75	115
	20	3/4"	160	125	90	68	51	20-2	4-Φ18	85	130
	25	1"	180	135	100	78	58	22-2	4-Φ18	95	150
	32	1-1/4"	200	150	110	82	66	24-2	4-Φ23	105	190
	40	1-1/2"	220	165	125	95	76	24-3	4-Φ23	120	230
	50	2"	250	175	135	105	88	26-3	4-Φ23	130	240
	65	2-1/2"	280	200	160	130	110	28-3	8-Φ23	160	280
	80	3"	320	210	170	140	121	30-3	8-Φ23	180	310
	100	4"	360	250	200	168	150	32-3	8-Φ25	200	330
	125	5"	381	295	240	202	176	36-3	8-Φ30	230	600
	150	6"	403	340	280	240	204	38-3	8-Φ34	260	800
	200	8"	502	405	345	300	260	44-3	12-Φ34	400	1200

Product Standards

Design and manufacture as GB/T12237

Face to face dimensions as GB/T12221

End flange dimensions as JB/T79

Pressure tese as JB/T9092

Detailed product specifications

Product Name	Flanged Floating Ball Valve
Body Material	WCB Carbon Cast Steel; CF8 304 Stainless Steel; CF8M 316 Stainless Steel
Size	1/2~40 inch ( DN15~DN1000)
Working Pressure	PN10-PN 420 / CLASS 150-2500
Connection Ends	Flanged
Working Temp.	≤150℃
Suitable Medium	Corrosive Medium (Water, Oil, Gas)
Operated	Manual, Worm Gear, Pneumatic actuator, Electric Actuator
Design standard	ASME, DIN, EN, JIS
Inspection & Testing	According to API598
Brand	Xiangzheng Valve
Certificates	ISO 9001, CE, TS, EAC,GOST
MOQ	10 PCS/size(Special material depends on)
HS code	8481804090

Product User Manual

1.Application Scope

For medium-low pressure pipelines carrying water, gas, oil and general chemical media. Do not exceed rated pressure and temperature.

2.Operation

Rotate the handle 90° for full open/close. Handle parallel to pipe = open, perpendicular = closed. Operate gently without violent hitting.

3.Installation

Bidirectional installation allowed. Clean pipeline to prevent debris from scratching valve seats.

4.Maintenance

Regularly open and close for lubrication if idle long-term. Clean seats if slight leakage occurs.

5.Prohibitions

Not fit for media with abundant solid particles. Never disassemble under pressure.

Quality certification

Flanged Floating Ball Valve

Faq

Q1: What are the main design advantages of the Xiangzheng flanged floating ball valve?

A: It features an advanced floating ball structure that utilizes pipeline pressure to press the ball against the downstream seat, achieving an automatic, pressure-assisted bidirectional tight shut-off. Additionally, it incorporates a blow-out-proof stem design to prevent external leakage under high pressure, ensuring robust safety and reliable operation in severe environments.

Q2: Which international quality and industry certifications do Xiangzheng hold?

A: As a dedicated source factory, Xiangzheng valves are manufactured under strict full-range quality inspections. Our valves comply with major global design standards (including ASME, DIN, EN, JIS) and are fully certified by TS, ISO9001, CE, and EAC (GOST), making them fully compliant for import into Europe, Russia, the Middle East, and South America.

Q3: What seat materials and pressure ratings are available for your valves?

A: Our standard flanged floating ball valves utilize reinforced PTFE soft seats, which offer excellent chemical resistance and bubble-tight sealing for temperatures up to 150°C. We support a wide range of working pressures from PN10 to PN420 (Class 150 to Class 2500) and offer body materials including WCB Carbon Cast Steel, CF8 (304 SS), and CF8M (316 SS).

Q4: Can these valves be automated with actuators?

A: Yes. While our standard configuration is manual handle operation for low-torque, effortless 90° switching, Xiangzheng valves can be custom-engineered with various actuation options. We provide configurations with worm gears, pneumatic actuators, and electric actuators to meet your specific pipeline automation requirements.

Q5: What is the Minimum Order Quantity (MOQ) and lead time for B2B global sourcing?

A: For standard sizes ranging from 1/2" to 40" (DN15–DN1000), our standard MOQ is 10 PCS per size. However, for custom specifications or special alloys, the MOQ can be negotiated. As an integrated R&D and manufacturing factory, we offer flexible production schedules and reliable global logistics support for our B2B partners.

Q6: What are the installation and maintenance precautions for this flanged floating ball valve?

A: It supports bidirectional installation. Before installation, ensure the pipeline is thoroughly cleaned of debris to avoid scratching the PTFE seats. For long-term performance, avoid using the valve in media with heavy solid particles, and perform regular open/close cycles if the valve remains idle for extended periods.

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Contact Info

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Address

Workshop 101, Building 3, No. 278 Haitong Road, Xinghai Street, Longwan District, Wenzhou City, Zhejiang Province, China
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Tel

+86-577-89998609
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Email

info@xiangzhengvalve.com

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