Pneumatic Flange Ball Valve

Pneumatic flanged ball valves are driven by a pneumatic actuator to rotate the ball 0–90° for opening and closing. They feature reliable sealing and low flow resistance, are compatible with various media, and are widely used in industrial control fields such as petrochemical and metallurgical industries.

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Product Introduction

Flanged ball valves are rotary ball valves with a rotation angle of 0–90°. They feature excellent sealing performance, large flow capacity, low flow resistance coefficient, simple structure, convenient maintenance and long service life. The valve body passage is in line with the connecting pipe diameter, allowing medium to pass through with almost no loss. Electric ball valves are available in two types: on-off type and regulating type.

They are usually used in applications requiring strict sealing. In addition to controlling gas, liquid and steam media, they are also suitable for sewage and media containing fibrous impurities. They are widely used in petroleum, chemical, metallurgical, light industry, paper making, power station, refrigeration and other fields.

Features

Ultra-reliable sealing: Adopts double-sided spherical sealing structure, with sealing performance reaching zero-leakage standard to ensure no leakage during medium transportation;
Excellent wear resistance and durability: Specially designed PTFE seal features outstanding self-lubrication, low friction loss with the ball, and significantly extends service life;
Flexible working condition adaptability: The ball core passage is available in rectangular, V-shaped and O-shaped options, which can be flexibly adapted to different flow control requirements.

Basic Parameters

Nominal Diameter (DN): DN15 - DN200

Operating Power Supply: AC110V, AC220V, AC380V, DC24V

Medium Temperature: -20°C to 350°C (Special sealing for >200°C)

Working Pressure: PN1.0 ~ 10.0MPa

Control Method: Modulating or On/Off Control

Protection Class: IP67

Connection & Sealing

Connection Type: Flange Type

Sealing Type: Elastic Seal, High-Temperature Resistant PPS (Polyphenylene Sulfide), Hard Alloy & Industrial Ceramics

Leakage Rate: Complies with ANSI B16.104 Class 5 Standard

Material Specifications

Body & Internal Components

Body Material: A105, F304, F316, WCB, FZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8, CF8M, CF3M

Ball Material: SUS304, SUS316

Sealing Components

Seat Material: PTFE (Normal Temperature) Special PPL (High Temperature) Metal Seal (High Temperature)

Applicable Medium

Water
Petroleum
Nitric Acid
Acetic Acid
Viscous Fluids
Slurries
Strong Oxidizing Media

Standards Compliance

Design & Manufacturing: GB 12237-2007, API 6D

Flange Standards:

- JB/T 79-2015 - GB/T 9124.1-2019 - GB/T 9124.2-2019 - ANSI B16.5 - JIS B2239

Face-to-Face Dimension: GB 12221-2005

Inspection Standard: API 598

Main Parameters

Power Supply	AC110V, AC220V, AC380V, DC24V
Nominal Diameter	DN15-200
Medium Temperature	-20℃ to +350℃ (+200℃ for special seal)
Working Pressure	PN1.0~10.0MPa
Control Mode	Regulation or On-Off Control
Pneumatic Actuation	Single-acting (with spring return) or Double-acting
Connection Type	Flanged
Body Material	A105, F304, F316, WCB, FZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8, CF8M, CF3M
Seat Material	PTFE (normal temperature), Special PPL (high temperature), Metal seal (high temperature)
Leakage Class	ANSI B16.104 Class 5
Sealing Type	Elastic seal, High temperature resistant polyphenylene, Hard alloy, Industrial ceramic
Applicable Medium	Water, Petroleum, Nitric acid, Acetic acid, Viscous fluid, Slurry, Strong oxidizing medium
Protection Grade	IP67
Design and Manufacturing Standard	GB12237-2021, API 6D
Flange Standard	JB/T 79-2015, GB/T 9124.1-2019, GB/T 9124.2-2019, ANSI B16.5, JIS B2239
Face-to-Face Dimension	GB12221-2005
Inspection Standard	API 598

Dimension Drawing

1.Installation Dimension Drawing of Pneumatic Flanged Ball Valve (Standard)

Nominal Diameter (DN)）		L	D	K	D1	n-Φd	b	i	Double Acting			Single Acting
									H	W1	W2	H	W1	W2

mm	in
15	1/2″	130	95	65	45	4-Φ14	14	2	195	147	72	195	147	72
20	3/4″	130	105	75	55	4-Φ14	16	2	197	147	72	213	168	83
25	1″	142	113	85	65	4-Φ14	18	2	221	168	83	233	184	95
32	1 1/4″	165	140	100	78	4-Φ18	18	2	235	168	83	256	204	103
40	1 1/2″	165	150	110	85	4-Φ18	18	2	248	184	95	265	262	109
50	2″	203	165	125	100	4-Φ18	20	2	271	204	103	295	268	122
65	2 1/2″	222	185	145	120	8-Φ18	20	2	325	262	109	383	301	142
80	3″	241	200	160	135	8-Φ18	21	2	345	268	122	404	390	152
100	4″	305	220	180	155	8-Φ18	22	2	406	301	142	448	458	174
125	5″	356	250	210	184	8-Φ18	22	3	459	301	142	501	458	174
150	6″	394	285	240	210	8-Φ23	24	3	486	390	152	544	525	206
200	8″	457	340	295	265	12-Φ23	26	3	576	458	174	634	532	226

Note: The suitable actuator model may vary for pneumatic valves depending on the service medium, valve torque and control method, resulting in corresponding changes to relevant dimensions.

Circuit Diagram

S

Switching Action Mode：Switching operations (open/close) are achieved via AC switching signals, and a set of active position signals indicating fully open/fully closed status are output.

MS

Switching Action Mode: Outputs passive contact signals. Structure：Equipped with two intermediate position switches.

PIU

Switching Action Mode: Outputs 0~1000Ω feedback signal. Structure: Equipped with 500Ω or 1kΩ potentiometer.

CPT

Switching Action Mode:
Outputs 4~20mA valve position feedback signal. Structure: Equipped with 1kΩ potentiometer and R/I converter.

PCU

Regulating Action Mode:Accepts 4~20mA control signal input and outputs 4~20mA valve position feedback signal. Structure: Integrated with 1kΩ potentiometer and control module (servo amplifier).

G

DC switching signals are output from the circuit via an external DC power supply to control the opening/closing program, and a set of passive contact signals corresponding to fully open/fully closed positions are provided.

SP

Switching Action Mode:
Controls valve opening angle via switching circuit, corresponding to potentiometer resistance value, while enabling intermediate position control function. Structure: Integrated with potentiometer and intermediate position switch.

H

Three-phase AC switching signals are output through an external three-phase power phase-reversing circuit to control opening/closing operations, accompanied by a set of passive contact signals for fully open/fully closed position indication.

Circuit Diagram

S

Switching Action Mode：Switching operations (open/close) are achieved via AC switching signals, and a set of active position signals indicating fully open/fully closed status are output.

MS

Switching Action Mode: Outputs passive contact signals. Structure：Equipped with two intermediate position switches.

PIU

Switching Action Mode: Outputs 0~1000Ω feedback signal. Structure: Equipped with 500Ω or 1kΩ potentiometer.

CPT

Switching Action Mode:
Outputs 4~20mA valve position feedback signal. Structure: Equipped with 1kΩ potentiometer and R/I converter.

PCU

Regulating Action Mode:Accepts 4~20mA control signal input and outputs 4~20mA valve position feedback signal. Structure: Integrated with 1kΩ potentiometer and control module (servo amplifier).

G

SP

H

Documents & Drawings:

Pneumatic Flange Ball Valve

Tags

Product Introduction

Features

Basic Parameters

Connection & Sealing

Material Specifications

Body & Internal Components

Sealing Components

Applicable Medium

Standards Compliance

Main Parameters

Dimension Drawing

Circuit Diagram

S

MS

PIU

CPT

PCU

G

SP

H

Circuit Diagram

S

MS

PIU

CPT

PCU

G

SP

H

Documents & Drawings:

GRAT-Flanged Ball Valve Selection Catalog

GRAT-Pneumatic Valve Instruction Manual

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