Glass Lined Piping

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Glass Lined Chemical Processing Equipment

Qianqiao manufactures and offers glass lined pipes and fittings with length ranging between 100mm and 4000mm (DN25- DN2000). As crucial parts in material transmission, the glass lining can provide pipes and fittings with smooth surface while offering good chemical stability and excellent corrosion resistance against all inorganic acids, organic acids (except for hydrofluoric acid and hot concentrated phosphoric acid) and organic solvents.

Features

All glass lined elbows go through the cold spraying process, which requires our personnel to repeat the grinding, refinement, and drying of the enamel powder. With this process, glass lined elbows feature a coating layer with uniform thickness, and the glass lined layer is closely adhered to the surface of metal piping, avoiding bubbles and preventing the coating from falling off.
Based on the advanced glass lining technique, Qianqiao can produce glass lined piping products meeting national, European, and DIN standards.
We have the capability to apply silicon-containing enamel to steel surface. Through approximately 900°C high temperature firing, the uniform and dense enamel layer is permanently bonded on the metal surface, thickness of the layer ranges from 0.8mm to 2mm.
Qianqiao has established long-lasting partnership with European well-known porcelain enamel manufacturers. The reliable quality porcelain enamel supplied by these manufacturers enables our glass lined pipes and fittings to be stably used even in the harsh environments like chloroacetic acid.

Glass Lined Straight Pipes

L	DN
L	25	32	40	50	65	80	100	125	150	200	250	300	400	500
100	0.8	1	1.2	1.7	2.5	3.4	3.9
150	1	1.2	1.4	2	3	3.9	4.8	6.4	7.9	12.1	17.4	21.1	36.6	46.8
200	1.1	1.4	1.6	2.2	3.5	4.5	5.6	7.5	9.3	14.2	20.7	25.0	41.5	53.5
250	1.2	1.5	1.8	2.5	3.9	5.1	6.5	8.6	10.8	16.2	23.9	28.8	46.4	60.2
300	1.4	1.7	2.0	2.8	4.4	5.6	7.3	9.7	12.2	18.3	27.1	32.7	51.2	66.9
400	1.6	2.0	2.4	3.3	5.4	6.8	9.0	11.8	15.0	22.5	33.6	40.4	61.0	80.4
500	1.9	2.4	2.8	3.9	6.4	7.9	10.6	14.0	17.8	26.6	40.1	48.1	70.7	93.8
600	2.2	2.7	3.2	4.5	7.3	9.1	12.3	16.1	20.6	30.8	46.5	55.9	80.5	107.2
700	2.4	3.1	3.6	5.0	8.3	10.2	14.0	18.3	23.4	34.9	53.0	63.6	90.2	120.7
750	2.6	3.3	3.8	5.3	8.8	10.8	14.8	19.4	24.8	37.0	56.2	67.4	95.1	127.4
800	2.7	3.4	4.0	5.6	9.3	11.4	15.7	20.4	26.2	39.1	59.5	71.3	100.0	134.1
900	3.0	3.8	4.4	6.1	10.3	12.5	17.3	22.6	29.1	43.2	65.9	79.0	109.7	147.6
1000	3.2	4.1	4.8	6.7	11.2	13.7	19.0	24.7	31.9	47.4	72.4	86.7	119.5	161.0
1200	3.8	4.8	5.6	7.8	13.2	16.0	22.4	29.1	37.5	55.7	85.3	102.2	138.9	187.9
1500	4.6	5.8	6.8	9.4	16.1	19.4	27.4	35.5	45.9	68.1	104.7	125.3	168.2	228.2
1800	5.4	6.9	8.0	11.1	19.0	22.9	32.4	42.0	54.4	80.6	124.1	148.5	197.4	268.6
2000	5.9	7.5	8.7	12.2	20.9	25.1	35.7	46.3	60.0	88.9	137.1	163.9	216.9	395.5
2500				15.0	25.8	30.9	44.1	57.1	74.1	107.7	136.4	202.5	265.7	362.7
3000				17.7	30.6	36.6	52.5	67.8	88.2	130.4	201.8	241.1	314.4	429.9

Glass Lined Elbows

		DN
		25	32	40	50	65	80	100	125	150	200	250	300	400	500
45°	A	60	65	70	80	85	95	105	125	150	180	220	250	300	360
	R	38	48	57	76	95	114	152	190	229	305	381	457	610	762
	daN(kg)	0.785	1.1	1.375	2.075	2.855	3.28	4.93	7.6	11.28	15.36	22.2	26.69	32.1	38.28
90°	A	99	117	113	141	167	153	120	130	272	247	294	345	446	548
	R	62	80	76	102	128	114	193	228	229	203	254	305	406	508
	daN(kg)	1.07	1.45	1.75	2.75	3.91	4.56	7.46	11.2	16.55	22.72	34.4	41.38	50.23	60.56

Glass Lined Tees

DN	25	32	40	50	65	80	100	125	150	200	250	300	400
L	180	210	220	240	260	280	310	340	390	460	540	630	740
L1	90	105	110	120	130	140	155	170	195	230	270	315	370
daN	1.98	2.74	3.39	4.85	6.72	8.29	12.88	17.67	24.63	39.73	64	85.34	151.9

Glass Lined Crosses

DN	25	32	40	50	65	80	100	125	150	200	250	300	400
L	180	210	220	240	260	280	310	340	390	460	540	630	740
L1	90	105	110	120	130	140	155	170	195	230	270	315	370
daN	1.98	2.74	3.39	4.85	6.72	8.29	12.88	17.67	24.63	39.73	64	85.34	151.9

Glass Lined Crosses

DN1	DN
	25		32		40		50		65		80		100		125		150		200		250		300		400
	L	DaN	L	DaN	L	DaN	L	DaN	L	DaN	L	DaN	L	DaN	L	DaN	L	DaN	L	DaN	L	DaN	L	DaN	L	DaN
32	140	0.9
40	140	1.3	140	1.4
50	140	2	140	2.1	140	2.2
65	150	2.2	150	2.3	150	2.4	150	2.5
80	160		160	2.6	160	3.4	160	3.5	160	3.6
100	175				175	4.3	175	5	175	5.1	175	5.4
125	200						200	6.8	200	6.9	200	7.4	200	8.8
150	225								225	8.7	225	8.5	225	10	225	10.5
200	250										250	14.4	250	15.4	250	15.8	250	16.9
250	300												300	22.5	300	22.8	300	23.6	300	25.9
300	325														325	28.7	325	29.6	325	32	325	35.6
400	450																		450	44.6	450	51.3	450	55
500	600																						600	81.11	600	96.6

Glass Lined Casing Spacers

L	DN	25	32	40	50	65	80	100	125	150	200	250	300	400	500
L	G	60	78	88	102	122	138	158	188	214	269	322	370
12		0.3	0.4	0.5	0.6	0.8	1	1.1	1.4	1.6	23	2.9	3.3
15		0.4	0.2	0.6	0.7	1	1.2	1.4	1.7	2	2.9	3.7	4.1
20		0.5	0.3	0.8	1	1.3	1.6	1.8	2.3	2.7	3.8	4.9	5.5	10.2	13.1
25		0.6	0.8	0.9	1.2	1.6	2	2.3	2.9	3.4	4.8	6.1	6.9	12.8	16.3
30		0.7	0.9	1.1	1.4	2	2.4	2.7	3.4	4.1	5.8	7.3	8.3	15.4	16.9
35		0.9	1.1	1.3	1.7	2.3	2.8	3.2	4	4.8	4.8	4.8	4.8	17.9	22.9
40		1	1.2	1.5	1.9	2.6	3.2	3.6	4.6	5.4	7.7	9.8	11	20.5	26.2
45		1.1	1.3	1.7	2.1	3	3.6	4.1	5.2	6.1	8.6	11	12.4	23	29.4
50		1.2	1.5	1.9	2.4	3.3	4	4.5	5.7	6.8	9.6	12.2	13.8	25.6	32.7
60		1.5	1.8	2.2	2.8	4	4.8	5.4	6.9	8.2	11.5	14.7	16.6	30.7	39.2
70		1.7	2.1	2.6	3.3	4.6	5.6	6.3	8	9.5	13.4	17.1	19.3	35.8	45.8
80		1.9	2.4	3	3.8	5.3	6.4	7.2	9.2	10.9	15.4	19.6	22.1	41	52.3
90		2.2	2.7	3.4	4.3	5.9	7.2	8.1	10.3	12.2	17.3	22	24.8	46.1	58.8
100														51.2	65.4

Glass Lined Reducing Flanges (PN10)

DN	DN1	A	E	G	DN SIDE		DN SIDE
					K	N-φ	H
25	15	115	35	68	85	4*M12	18
	20						18
32	25	140	35	78	100	4*M12	18
40	25	150	35	88	110	4*M12	18
	32						18
50	25	165	35	102	125	4*M12	18
	32						18
	40						18
65	25	185	35	122	145	8*φ18	18
	32					8*M16	18
	40						18
	50						18
80	25	200	35	138	160	8*φ18	16
	32					8*M16	18
	40						18
	50						18
	65						18
100	25	22	45	158	180	8*φ18	18
	32						18
	40						18
	50					8*M16	20
	65						20
	80						20
125	25	250	45	188	210	8*φ18	16
	32						18
	40						18
	50						18
	65						20
	80						20
	100						20
150	25	285	45	214	240	8*φ22	16
	32						18
	40						18
	50						18
	65						18
	80						18
	100					8*M22	24
	125						24
200	25	340	45	295	295	8*φ22
	32
	40
	50
	65
	80
	100
	125					8*M22
	150
250	25	385	45	350	350	12*φ22
	32
	40
	50
	65
	80
	100
	125
	150
	200					12*M22
300	25	445	45	400	400	12*φ22
	32
	40
	50
	65
	80
	100
	125
	150
	200
	250
400	25	565	45	515	515	16*φ27

Compared to glass pipe fittings, glass lined steel pipes and fittings feature higher strength and durability, which avoids any hazards caused by fragments from glass breakage. Also, compared to PTFE lined steel pipes, the falling off of the non-metal coating layer does not happen in the glass lined pipes even in high temperature and under vacuum conditions because the glass lined layer is tightly adhered to the metal surface. Therefore, glass lined piping system is widely applied in various industries including chemical, petrochemical, pharmaceutical, dyes, pesticides, food, etc., and plays an vital role in scientific research tasks where corrosion and clean work environment are two most important criteria.