Pneumatic O-Type Cut-Off Ball Valve

Home » Products » Pneumatic O-Type Cut-Off Ball Valve

Pneumatic O-Type Cut-Off Ball Valve

Pressure Range: PN1.6~6.4MPa, ANSI150LB~600LB
Nominal Diameter: DN15~DN400
Connection Mode: RF/RJ/FF/LG, Flange PN16 convex surface, PN40, 64 concave convex surface
Body Material: LCB, WCB, CF8, CF8M, CF3, CF3M
Flow Characteristics: ON-OFF
Opening Degree: 90°
Valve Core Movement: Close the valve clockwise
Seat Form: Soft seat, metal seat (seal cover hardening)
Suitable Temperature: Soft seat: -20~+250°C; Metal seat: -60~+450°C
Leakage Level: Soft seat: ANSI VI; Metal seat: ANSI IV
Design Standard: GB/T 12237, ASME B16.34

Product Overview

The pneumatic O-type cut-off ball valve is characterized by large circulation capacity, compact structure, good sealing performance, and long service life, which is also economical, practical, and easy to maintain. It is widely used in situations requiring strict cut-off including petroleum, chemical industry, natural gas, electric power, metallurgy, food and pharmaceutical, and also suitable for water, steam, oils, liquefied gas, natural gas, coal gas, and other media. In addition, it can also be fire-proof and undergo special hardening treatment according to the needs of customers to provide safer and more extensive applications.

Model Preparation

Z	Actuator
Z series shut-off valve	SH: Pneumatic piston actuator J: Pneumatic diaphragm actuator A: Electric DTR actuator R: Electric 3810R actuator
Q	Structural Style
Q Shut-off valve	O: Standard soft seal shut-off ball valve OH: Metal seat shut-off ball valve

Product Features

The valve body is made of precision casting or forging. The structure is compact, and the appearance is beautiful. Fixed O-type ball valve, spool and stem rotation, rotating spool valve, valve seat always close contact, with a strong shear capacity.
Seat by cylindrical spring or butterfly spring preload, with automatic compensation, self-sealing, and valve cavity automatic pressure relief function, suitable for high temperature and high-pressure occasions.
Ball valve fixed to ensure the smooth operation of the ball valve, reducing operating torque.
Double break design ensures that the ball valve is fully opened and fully closed. A variety of sealing structures are available to ensure service life and reliability. Sealing structure can be selected before the valve seat seal (recommended), valve seat seal, or valve before the valve sealing (specific working conditions). Sealed with hard and soft sealing, optional sealed surface hardening treatment, suitable for a variety of working conditions. The design of automatic relief valve pressure cavity.
In the valve body cavity, for medium temperature rise caused by abnormal pressure, without going through the safety valve, the valve seat can function alone with automatic pressure relief, improving the safety valve in the delivery of liquid medium.
Grease emergency ambulance: In some special occasions, as foreign media or fire caused by failure of the valve seat sealing, grease valve provides a quick connection with grease gun, quickly injected into the valve seat seal grease seal to relieve leakage.
Can choose fire protection structure, anti-static structure, anti-stem blowing structure design.
Long stem design, suitable for low-temperature occasions.

Specification Parameters

Part material

Part Name	Materials
Body	WCB, CF8, CF8M, CF3, CF3M
Ball	2Cr13, 304, 316, 316+ STL, etc.
Sealing Ring	PTFE, PPL, 304, 316, 316+ STL, etc.
Stem	2Cr13, 304, 316, etc.
Seat Spring	Inconel, etc.
Seat Support Ring	2Cr13, 304, 316
Gasket	Stainless steel wraps around graphite
Thrust Bushing	PTFE, Graphite
Packing	V-PTFE, Graphite

Technical Parameters

Face To Face	GB/T12221, ASME B16.10
Test Standard	GB/T13927, API598
Operation Mode	Handle, gear, pneumatic
Pneumatic Accessories	Solenoid valve, limit switch, air filtration reducing valve, protection valve, manual operation mechanism, quick discharge valve, etc.
Optional Features	Fireproof antistatic design, Oil, water and water treatment, Manual operation device, Forbidden copper processing, Spherical special treatment, Special interface, piping, Apply the paint according to the customer’s requirement, Under vacuum conditions, Special test requirements, Sand dust, Cold area, Resistance to salt corrosion.

Flow Characteristics

Main External Connection Dimensions

Nominal Diameter (DN)	L (Floating Ball PN16)	L (Fixed Ball PN40,64)	D	D1	D2	b	Z-d	H	H1	H2	A	B
25	150	165	115	65	85	14	4-14	320	60	182	222	161
32	165	178	135	78	100	16	4-18	350	70	188	222	161
40	180	190	145	85	110	16	4-18	370	75	198	294	161
50	200	216	160	100	125	16	4-18	380	85	203	294	161
65	220	241	180	120	145	18	4-18	410	95	222	300	188
80	250	283	195	135	160	20	8-18	420	105	237	300	188
100	280	305	215	155	180	20	8-18	555	115	281	380	268
125	320	381	245	185	210	22	8-18	660	125	300	380	268
150	360	403	280	210	240	24	8-23	724	140	300	450	268
200	457	502	335	265	295	26	12-23	774	170	368	603	268
250	533	568	405	320	335	30	12-25	885	205	418	683	268

Specification Applications

The Pneumatic O-Type Cut-Off Ball Valve is widely used in industrial applications requiring reliable and precise cut-off operations. Its large circulation capacity, compact structure, and excellent sealing performance make it an ideal choice for handling a variety of media, including petroleum, chemical products, natural gas, steam, oils, liquefied gases, coal gas, and water. The valve is designed for high-temperature, high-pressure environments and offers a long service life while being economical and easy to maintain. It features fire-proof and hardened sealing options, making it suitable for hazardous and specialized conditions. This valve is extensively used in industries such as petroleum, chemical processing, metallurgy, pharmaceuticals, and power generation.

Valve Actuation

Process Optimization

Precision Engineering

Pipeline Solutions

Industrial Valves

Get In Touch

Discover our premium valve solutions and boost your efficiency. Contact
us now to find out how we can support your needs with top-quality
products and exceptional service.

Call Us On

0577—86938599

Email Us

[email protected]

Your Trusted Partner for High-Quality Valve Solutions