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Home > Products > Regulator valve > Pneumatic regulating ball valve

Description Material Performance Product Size Specifications

Pneumatic ball valve, is the introduction of foreign advanced technology on the basis of special design, carefully manufactured products. Intelligent control and positioning, with the electrical valve positioner matching, input 4-20mADC signal and 0.4~0.7MPa gas source can control the operation, to achieve pressure, flow, temperature, liquid level and other parameters of the adjustment. It is driven by compressed air, stem driven spool in the valve body rotation 90 degrees can be fully open - full closed action. The product is divided into metal seal and soft seal according to its sealing performance. The utility model has the advantages of compact structure, small volume, reliable operation, good tightness, easy maintenance, convenient installation, strong adaptability, etc.. The utility model is especially suitable for occasions where the medium is thick, granular and fibrous. Can be widely used in petroleum, chemical, teaching equipment, light industry, high pressure equipment, pharmaceutical, paper and other industrial automatic control system for remote centralized control or local control.

Valve body:
Nominal diameter: 15~200mm
Nominal pressure: PN1.6 4 6.4MPa
Connection form: flange press JB78-59 JB79-59
Material: WCB, HT200, ZG1Cr18Ni9Ti,
ZG0Cr18Ni12Mo2Ti, CF8 lining tetrafluoroethylene, (304),
CF8M (316), CF3M (316L)
Temperature range: normal temperature -20 DEG C ~+180 C
Middle temperature -40 C ~ +350
Packing: V type PTFE packing, containing PTFE packing,
Asbestos braided filler, flexible graphite.
Valve assembly:
Spool type: O type spool
Flow characteristics: fast opening characteristics
Material: ICr18Ni9Ti, 0Cr18Ni12Mo2Ti
Seat material: PTFE (PTFE), specially made PPL, metal seat
Adjustable ratio: 350:1

Flow characteristic Kv value：

Nominal diameter（DN）	Kv value at different opening angles
temperature	10o	20o	30o	40o	50o	60o	70o	80o	90o
50	2	4	9	17	32	60	97	151	215
80	6	11	22	44	83	155	250	389	550
100	9	18	35	71	133	248	398	620	890
150	20	40	80	160	300	560	900	1400	2000
200	36	72	143	286	737	1002	1611	2506	3580
250	57	113	226	453	848	1582	2543	3955	5650
300	81	163	325	651	1220	2278	3661	5695	8100

Specification performance table：

Nominal diameter DN	15	20	25	32	40	50	65	80	100	125	150	200
discharge coefficient（Kv）	20	38	72	110	170	215	380	550	890	1400	2000	3580
Range of motion	0－90
Allowable differential pressure ΔP	Less than nominal pressure（1.6MPa）
Leakage rateQ	Testing without leakage according to API598 standard
Basic error	2% Belt positioner
Return difference	2% Belt positioner
dead zone	0.6% Belt positioner

SMQ641F-16（1.6MPa）、25(2.5Mpa)、40(4.0MPa)Type pneumatic ball valve connection dimensions：

DN	L	H	D	D1	D2	b	f	D3	Z-d1
15	130/130/140	279	95	65	45	14/16/16	2	40	4-Φ14
20	140/140/150	282	105	75	55	14/16/16	2	51	4-Φ14
25	150/150/165	295	115	85	65	14/16/16	2	58	4-Φ14
32	165/165/180	298	135	100	78	16/18/18	2	66	4-Φ18
40	180/180/200	325	145	110	85	16/18/18	3	76	4-Φ18
50	200/200/220	332	160	125	100	16/20/20	3	88	4-Φ18
65	220/220/250	422	180	145	120	18/22/22	3	110	4-Φ18/8-Φ18/8-Φ18
80	250/250/280	558	195	160	135	20/22/22	3	121	8-Φ18
100	280/280/320	573	215/230/230	180/190/190	155/160/160	20/24/24	3	150	8-Φ18/8-Φ23/8-Φ23
125	320/320/360	605	245/270/270	210/220/220	185/188/188	24/28/30	3	176	8-Φ18/8-Φ25/8-Φ25
150	360/360/400	644	280/300/300	295/310/320	210/218/218	24/28/30	3	204	8-Φ23/8-Φ25/8-Φ25
200	400/400/550	850	335/360/375	295/310/320	265/278/282	26/34/38	3	260	12-Φ23/12-Φ25/12-Φ30

Main dimensions and connection dimensions：SMQ671F-16（1.6MPa）、25(2.5MPa)、4.(4.0MPa)
Note: data in table XX/XX are pressure1.6MPa、2.5MPa

DN	d	L	H	D	D1	D2	b	f	L0	Z-Md
15	14	35	328	90	65	45	14/16	2	180	4-M12
20	19	38	335	100	75	55	14/16	2	180	4-M12
25	25	42	350	110	85	65	14/16	2	180	4-M12
32	29	50	380	130	100	78	16/18	2	220	4-M16
40	38	60	410	145	110	85	16/18	3	220	4-M16
50	48	70	442	160	125	100	16/20	3	260	4-M16
65	64	95	452	180	145	120	18/22	3	260	4/8-M16
80	76	118	495	190	160	135	20/22	3	296	8-M16
100	95	140	538	215/230	180/190	155/160	20/24	3	350	8-M16/20
125	118	175/195	585	245/270	210/220	185/188	24/28	3	350	8-M16/24
150	150	210/260	708	280/300	240/250	210/218	24/28	3	439	8-M20/24

Taiwan three piece pneumatic ball valve main dimensions and connection dimensions: SMQ611F-25 (2.5MPa), 40 (4.0MPa), 64 (6.4MPa) type pneumatic ball valve::