Two Piece High Platform Flange Ball Valve GB/T 12237 ISO 5211 for Petrochemical Water Treatment China Manufacturer

Two piece national standard high platform flange ball valve

The two-piece national standard high platform flange ball valve is a two-piece valve connected by flanges or bolts between the main valve body and the auxiliary valve body. It complies with the national standard flange standard and ISO 5211 high platform design, making it easy to install pneumatic and electric actuators for automated control. It adopts a direct flow channel and a 90 ° rotating opening and closing design, which is easy to operate and reliable in sealing, suitable for fluid control in harsh working conditions such as petroleum and chemical industries.

Core features:

Structure: The two-piece valve body can be quickly disassembled and maintained, and the high platform enhances the adaptability of the actuator;

Sealing: wedge-shaped sealing structure or PTFE valve seat, adapted to pressure fluctuations and reduced medium flushing;

Performance: Low flow resistance, corrosion resistance, wide diameter range, supports high temperature and high pressure (-20 ℃~180 ℃, 1.6~4.0MPa).

Application scenarios: Industrial pipelines that require rapid cutting or adjustment, such as natural gas, chemical raw material transportation, and power systems.

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Economy and reliability
Applicability and durability
Easy operation and maintenance
Excellent sealing performance
Structural design optimization

Economy and reliability

01
Long life design
The sealing material is wear-resistant and anti-aging, with a service life of more than 15 years under normal conditions, reducing the replacement frequency.
02
Low maintenance cost
simple structure, quick replacement of sealing rings, reducing maintenance costs.

Applicability and durability

01
Material diversity
The ball, valve seat, and valve body can be selected from stainless steel, carbon steel, or special alloys according to the characteristics of the medium, suitable for corrosive, high temperature (-20 ℃~200 ℃), and high pressure (1.6~4.0MPa) environments.
02
Low flow resistance design
With a straight through flow channel and full bore structure, the fluid resistance is small, avoiding pressure loss of the medium, and suitable for high flow transportation.
03
Wide compatibility
Supports media containing water, oil, gas, steam, and suspended particles, with a diameter range from a few millimeters to several meters.

Easy operation and maintenance

01
90 ° quick opening and closing
Simply rotate 90 ° to achieve full opening or full closing, with a quick response, suitable for emergency cutting or frequent adjustment scenarios.
02
Low operating torque
The valve stem adopts a double O-ring seal and low friction design, making manual operation lightweight and adapting to automated actuators with lower energy consumption.
03
Online maintenance
Some models support an upper mounted structure, allowing for online replacement of seals without disassembling the valve, reducing downtime.

Excellent sealing performance

01
Bidirectional sealing design
The ball and valve seat are sealed with PTFE (polytetrafluoroethylene) or metal sealing surfaces, and are automatically compressed by wedge-shaped sealing structure or medium pressure to ensure reliable sealing under high pressure and high temperature conditions.
02
Sealing surface protection
In the fully open or fully closed state, the sealing surface between the ball and the valve seat is isolated from the medium, avoiding medium erosion and corrosion, and extending the service life.
03
Special processing technology
precise grinding of the surface of the sphere, combined with electric discharge polishing technology, to improve the accuracy and wear resistance of the sealing surface.

Structural design optimization

01
Two piece valve body
composed of a main valve body and a secondary valve body, connected by flanges or threads, easy to disassemble, maintain and install, especially suitable for space limited pipeline systems.
02
High platform design
The top of the valve stem adopts a high platform structure that complies with ISO 5211 standard, which can directly install electric and pneumatic actuators, adapt to automation control requirements, and reduce additional connectors.
03
Compact and lightweight
Small in size and light in weight, reducing the space occupied by pipeline systems while lowering installation difficulty.

Main Component Materials

Part Name	Q41F-(16~25)C	Q41F-(16~25)P	Q41F-(1625)R
valve body	WCB	ZG1Cr18Ni9Ti CF8	ZG1Cr18Ni12Mo2Ti CF8M
valve cover	WCB	ZG1Cr18Ni9Ti CF8	ZG1Cr18Ni12Mo2Ti CF8M
sphere	1Cr18NigTi 304	1Cr18Ni9Ti 304	1Cr18Ni12Mo2Ti 316
valve stem	1Cr18Ni9Ti 304	1Cr18Ni9Ti 304	1Cr18Ni12Mo2Ti316
sealing ring	Polytetrafluoroethylene (PTFE)
filler	Polytetrafluoroethylene (PTFE)

Performance Specifications & Dimensions

Nominal pressure PN

1.6/2.5/4.0/6.4/10.0/16.0
Shell F

P x 1.5
Sealing Pressure

P x 1.1
Medium

Water, oil, gas, nitric acid, acetic acid, etc

DN(mm)	INCH	L	D	K	D1	N-Φ	C	W
15	1/2"	108	95	65	45	4-14	14	135
20	3/4"	117	105	75	58	4-14	14	135
25	1"	127	115	85	68	4-14	14	165
32	1 1/4"	140	135	100	78	4-18	16	165
40	1 1/2"	165	145	110	88	4-18	16	190
50	2"	178	160	125	102	4-18	16	210
65	2 1/2"	190	180	145	122	4-18	18	240
80	3"	203	195	160	138	8-18	20	260
100	4"	229	215	180	158	8-18	20	320
125	5"	356	245	210	185	8-18	22	520
150	6"	394	280	240	210	8-23	24	600
200	8"	457	335	295	265	12-23	26	800
250	10"	533	405	355	320	12-25	30	1000
300	12"	610	460	410	375	12-25	30	1200

Note: The above data is for reference only. For details, please consult the company's sales department.