一、概述Outline

QJ(D/S)RB精小型氣動保溫O型切斷球閥是由阿斯塔氣動活塞式執行機構和夾層整體鑄造閥體組成。閥芯為全球圓柱通孔球體。
該產品閥座設計成具有像彈簧一樣的回彈作用而形成雙撓性閥座，確保了球體密封的可靠性。同時介質壓力與上游端撓性結構的回彈力又增加了下游端閥座的密封。撓性結構又自動補償閥座的磨損及溫度和壓力變化，提高了使用壽命。
該產品具有易拆裝維修、外形整潔、體積小巧、保溫效果好等優點。能廣泛應用于易結晶及粘稠的流體，并能滿足各種需要保溫介質的場合。如含蠟質、瀝青較多的石油等被控介質，防止介質的結晶，確保自控系統高效運轉。

QJ (D / S) RB O-intensive small air cut off valve insulation by pneumatic piston actuator Astana and laminated the whole cast body composition. Spool cylindrical hole for the global sphere.
The product is designed to have a seat like a spring rebound effect and the formation of double-flex seat, make sure the ball seal reliability. While medium pressure and the upstream end of the resilient and flexible structures to increase the downstream end of the valve seat seal. Flexible structure and automatically compensates for seat wear and the temperature and pressure changes, increased service life.
The products are easy disassembly and maintenance, neat appearance, small size, good insulation effect and so on. Easy to crystallize and can be widely used in viscous fluids, and insulation to meet the needs of media applications. Such as those containing wax, oil, asphalt more charged the media to prevent crystallization of the media, to ensure efficient operation of the automatic control system.

二、規格技術參數及性能指標Technical parameters and performance specifications

1.規格技術參數Specifications Technical parameters

公稱通徑mm	15	20	25	32	40	50	65	80	100	125	150	200
額定流量系數Kv	21	38	72	112	170	275	380	512	941	1450	2220	3590
公稱壓力Mpa	1.6、2.5
固有流量特性 Inherent flow characteristic	快開特性 Quick-opening feature
保持介質溫度℃ Maintain the medium temperature ℃	≤350
額定行程Rated travel	90°
氣源壓力Air pressure(Mpa)	0.4~0.6
閥體材質Body material	ZG230~450、 ZG1Cr18Ni9Ti、 ZG1Cr18Ni12Mo2Ti
閥座材質Seat Material	合金鋼
填料材質Packing material	膨脹石墨
執行機構接口Actuator interfaces	1/8 ″G     NAMUR1/4″
保溫介質接口 Insulation media interface	2G ?″
連接形式Connection form	PF型：PN1.6按JB/T 79.1 、PN4.0 、6.4按JB/T 79.2或對夾式 PF type: PN1.6 by JB / T 79.1, PN4.0, 6.4 according to JB / T 79.2 or clip-on
允許壓差 Permissible differential pressure	≤公稱壓力(mpa)
泄露等級 Leakage level	符合ANSIB16.104VI級 Meet ANSIB16.104VI class

2.執行機構轉扭及動作時間Twist and turn actuators operating time

執行機構型號AGT		63×90	75×90	83×90	92×90	110×90	118×90	127×90	160×90	210×90	254×90	255×90
扭矩N.m	400Kpa	23.2	40.0	56.0	77.6	112.8	168.0	220.0	440.0	948.0	1740.0	2172.0
	500Kpa	29.0	50.0	70.0	97.0	141.0	210.0	275.0	550.0	1185.0	2715.5	2715.0
動作時間(S)		0.241	0.333	0.429	0.444	0.461	0.60	0.857	1.62	3.33	6.00	7.50

三、保溫介質壓力Insulation medium pressure

公稱壓力Mpa	1.6	4.0	6.4
保溫介質壓力Mpa	1.6	2.5	4.0

四、可配附件Available Accessories

  電磁閥、手輪機構、閥位開關、電-氣閥門定位器、空氣過濾減壓器等

Solenoid valve, hand wheel, valve position switches, electric - gas valve positioners, air filter regulator, etc.

五、主要外形尺寸Main dimensions

1.法蘭式氣動保溫O型切斷球閥Flange O-off ball valve pneumatic insulation 

公稱壓力DN		配管法蘭規格 Pipe flange specifications	L	H	D	D1	D2	b	Z-φd	L1
mm	in
20	?″	20×40	117	360	145	110	85	18	4-φ18	177
25	1″	25×50	127	380	160	125	100	20	4-φ18	177
40	1?″	40×65	165	422	180	145	120	20	4-φ18	216
50	2	50×180	178	480	195	160	135	22	8-φ18	216
80	3	80×150	229	670	280	240	210	28	8-φ23	290
100	4	100×200	254	675	335	295	265	30	12-φ23	368
150	6	150×250	292	850	405	355	320	32	12-φ25	450
200	8	200×350	330	895	520	470	435	34	16-φ25	583

 2、對夾式氣動保溫O型切斷球閥Insulation on the clip-O-off ball valve pneumatic

公稱壓力DN		配管法蘭規格 Pipe flange specifications		尺寸Size			重量(Kg)
mm	in	mm	in	L	H	G
15	?″	15×32	?×?	35	290	G3/8	5.1
20	?″	20×40	?×1?	38	300	G3/8	5.4
25	1″	25×50	1×2	42	310	G1/2	6.3
32	1?″	32×50	1?×2	50	332	G3/4	10.2
40	2?″	40×65	2?×2	60	340	G3/4	12.2
50	2″	50×80	2?×3	70	355	G3/4	15
65	2?″	65×100	2×4	95	440	G3/4	32
80	3	80×125	3×5	118	455	G3/4	37
100	4	100×150	4×6	140	485	G3/4	47
125	5	125×200	5×8	175	690	G3/4	59
150	6	150×200	6×8	210	740	G3/4	75