Low-temperature ball valve

[Product description]

DQ41F, DQ41Y type PN16~PN64 Pneumatic ball valve: pneumatic, flange connection, floating ball straight-through structure form, seat sealing surface material is PTFE, reinforced PTFE plastic (DQ41F), metal surfacing cobalt base (DQ41Y), nominal pressure PN16~PN63, valve body material is WCB, CF8, CF8M, alloy steel ball valve.

Products and services that meet fluid control requirements

Each process, each facility, and each environmental constraint has its own special requirements. Therefore, Dongyan offers a comprehensive range of products covering different performance levels, pressures, different functions and different materials.

Detail

Product Performance Parameters

Main performance parameters of DQ41F and DQ41Y type PN16~PN63 pneumatic ball valves

Model	PN	Working pressure /MPa	Applicable temperature /℃	Applicable medium
DQ41F-16C	16	1.6	≤180	Water, gas, oil
DQ41F-25	25	2.5
DQ41F-40	40	4
DQ41Y-16C	16	1.6	≤425	Water, gas and oil containing particulate media
DQ41Y-25	25	2.5
DQ41Y-40	40	4
DQ41F-16P	16	1.6	≤180	Nitric acid
DQ41F-25P	25	2.5
DQ41F-40P	40	4
DQ41Y-16P	16	1.6	≤450	Water, gas and oil containing particulate media
DQ41Y-25P	25	2.5
DQ41Y-40P	40	4
DQ41F-16R	16	1.6	≤180	Nitric acid
DQ41F-25R	25	2.5
DQ41F-40R	40	4
DQ41Y-16R	16	1.6	≤450	Water, gas and oil containing particulate media
DQ41Y-25R	25	2.5
DQ41Y-40R	40	4
DQ41F-16I	16	1.6	-29~150	Water, steam, oil products, etc
DQ41F-25I	25	2.5
DQ41F-40I	40	4
DQ41F-63I	63	6.3

Product Component Materials

Materials for components of DQ41F and DQ41Y type PN16~PN63 pneumatic ball valves

Model	Material
	Valve body	Valve stem	Sealing surface	Packing material
DQ41F-16C	WCB	2Cr13	PTFE, reinforced PTFE	PTFE
DQ41F-25		304
DQ41F-40		316
DQ41Y-16C		1Cr18Ni9Ti	Metal surfacing cobalt-based	Flexible graphite
DQ41Y-25		1Cr18Ni12Mo2Ti
DQ41Y-40
DQ41F-16P	CF8	304	PTFE、Enhanced PTFE	PTFE
DQ41F-25P
DQ41F-40P
DQ41Y-16P			Metal surfacing cobalt-based	Flexible graphite
DQ41Y-25P
DQ41Y-40P
DQ41F-16R	CF8M	316	PTFE、EnhancedPTFE	PTFE
DQ41F-25R
DQ41F-40R
DQ41Y-16R			Metal surfacing cobalt-based	Flexible graphite
DQ41Y-25R
DQ41Y-40R
DQ41F-16I	Alloy steel	Stainless steel	—	—
DQ41F-25I
DQ41F-40I
DQ41F-63I

Product appearance and structural dimensions

DQ41F, DQ41Y PN16 Pneumatic Ball Valve Main Appearance and Structural Dimensions (mm)

DN	L	D	H	H1	L0	Weight/kg
15	130	95	185	39	140	6
20	130	105	189	43	140	7
25	140	115	210	48	158	8
32	165	135	265	58	211	12
40	165	145	260	62.5	211	14
50	200	160	295	76	211	18
65	220	180	340	86	268	26
80	250	195	355	100	268	34
100	280	215	430	131	408	61
125	320	245	465	148	408	104
150	360	280	580	173	543	158
200	457	335	710	219	684	276
250	533	405	790	260	684	425
300	610	460	870	305	684	580

DQ41F, DQ41Y PN25 Pneumatic Ball Valve Main Appearance and Structural Dimensions (mm)

DN	L	D	H	H1	L0	Weight/kg
15	140	95	185	39	140	6
20	152	105	189	43	140	7
25	165	115	210	48	158	10
32	178	135	265	58	211	14
40	190	145	283	62.5	211	16
50	216	160	295	76	247	22
65	241	180	340	86	268	34
80	283	195	355	100	268	40
100	305	230	455	134	408	78
125	381	270	515	148	437	130
150	403	300	600	173	543	195
200	419	360	740	223	684	297
250	568	425	920	283	684	460
300	648	485	955	321	684	700

DQ41F, DQ41Y PN40 Pneumatic Ball Valve Main Appearance and Structural Dimensions (mm)

DN	L	D	H	H1	L0	Weight/kg
15	140	95	185	39	140	7
20	152	105	189	43	140	8
25	165	115	210	48	158	11
32	178	135	265	58	211	15
40	190	145	283	62.5	247	19
50	216	160	295	76	247	22
65	241	180	340	86	268	33
80	283	195	380	100	315	44
100	305	230	455	134	408	84
125	381	270	515	148	543	162
150	403	300	600	173	543	197
200	419	375	740	223	684	342
250	568	445	920	283	684	500
300	648	510	955	321	684	705

DQ41F, DQ41Y PN64 Pneumatic Ball Valve Main Appearance and Structural Dimensions (mm)

DN	L	D	H	H1	Weight/kg
15	140	105	70	210	—
20	152	130	75	250	7.2
25	165	140	85	261	9
32	178	155	100	262	13
40	190	170	115	294	15
50	216	180	130	352	19
65	241	205	155	398	42
80	283	215	180	461	50
100	305	250	210	488	68
125	381	—	—	—	108
150	403	—	—	—	140