Quartz sleeve is a transparent quartz glass tube, manufactured from high-purity quartz sand by advanced continuous melting equipment. As a kind of UV germicidal lamp spares, it is characterized by high purity, high UV transmittance, good thermal stability and remarkable dimensional accuracy, making it an indispensable device for protecting lamps from external damage and extending working life.

OD (mm)	ID (mm)	WT (wall thickness-mm)	Applicable lamps type
19.0	17.0	1.00	15mm (T5) OD standard-output and high-output lamps without lamp bases
20.5	18.0	1.25	15mm (T5) OD standard-output and high-output lamps with AL. bases
22.0	19.0	1.50	15mm (T5) OD standard-output and high-output lamps with AL. bases
22.0	20.0	1.00	15mm (T5) OD standard-output and high-output lamps
22.5	20.0	1.25	15mm (T5) OD standard-output and high-output lamps
22.6	19.6	1.50	15mm (T5) OD standard-output and high-output lamps
22.6	20.0	1.30	15mm (T5) OD standard-output and high-output lamps
23.0	20.0	1.50	15mm (T5) OD standard-output and high-output and Amalgam  lamps
24.5	22.0	1.25	15mm (T5) OD standard-output and high-output and Amalgam  lamps
25.0	22.0	1.50	19mm (T6) OD standard-output and high-output and Amalgam  lamps
28.0	25.0	1.50	19mm (T6) OD standard-output and high-output and Amalgam  lamps
30.0	26.0	2.00	19mm (T6) OD standard-output and high-output and Amalgam  lamps
30.0	26.5	1.75	19mm (T6) OD standard-output and high-output and Amalgam  lamps
32.0	29.0	1.50	19mm (T6) OD standard-output and high-output and Amalgam  lamps
33.0	30.0	1.50	19mm (T6) OD standard-output and high-output and Amalgam  lamps
36.0	32.0	2.00	25mm (T8) OD standard-output and high-output and Amalgam  lamps
38.0	34.0	2.00	25mm (T8) OD standard-output and high-output and Amalgam  lamps
38.0	35.0	1.50	25mm (T8) OD standard-output and high-output and Amalgam  lamps
45.0	42.0	1.50	32mm (T10), 38mm (T12) OD standard-output and high-output and Amalgam  lamps
48.0	44.0	2.00	32mm (T10), 38mm (T12) OD standard-output and high-output and Amalgam  lamps
48.0	45.0	1.50	32mm (T10), 38mm (T12) OD standard-output and high-output and Amalgam  lamps
F40.0	36.0	2.00	PL uv lamps
F40.0	37.0	1.50	PL uv lamps
F44.0	40.0	2.00	PL  uv lamps
others	on request	on request
Noted: Length ranges according to your size;                                  QS: quartz sleeve with single round-end closed; QD: quartz sleeve with double-end open;                                      QF: quartz sleeve with single flat-end closed.

QS: quartz sleeve with single round-end closed
Types		Spec.		Applied UV lamps
QS23200170		One dome ended, 23*20*170mm, +0.8/-0.2mm		(T5)135-150mm
QS23200245		One dome ended, 23*20*245mm, +0.8/-0.2mm		(T5)135-212mm
QS21180270		One dome ended, 21*18*270mm, +0.8/-0.2mm		(T5)135-254mm
QS23200295		One dome ended, 23*20*295mm, +0.8/-0.2mm		(T5)135-287mm
QS23200360		One dome ended, 23*20*360mm, +0.8/-0.2mm		(T5)135-330mm
QS23200580		One dome ended, 23*20*580mm, +0.8/-0.2mm		(T5)135-550mm
QS23200875		One dome ended, 23*20*875mm, +0.8/-0.2mm		(T5)135-843mm
QS23200900		One dome ended, 23*20*900mm, +0.8/-0.2mm		(T5)135-843mm
QS23200940		One dome ended, 23*20*940mm, +0.8/-0.2mm		(T5)135-910mm
QS23201200		One dome ended, 23*20*1200mm, +0.8/-0.2mm		(T5)135-1148mm
QS23201650		One dome ended, 23*20*1650mm, +0.8/-0.2mm		(T5)135-1554mm
QS28251200		One dome ended, 28*25*1200mm, +0.8/-0.2mm		(T6)135-1148mm
QS28251570		One dome ended, 28*25*1570mm, +0.8/-0.2mm		(T6)135-1554mm
QS28251620		One dome ended, 28*25*1620mm, +0.8/-0.2mm		(T6)135-1148mm
QS28251788		One dome ended, 28*25*1788mm, +0.8/-0.2mm		(T6)135-1554mm
QS38350450		One dome ended, 38*35*450mm, +0.8/-0.2mm		(T8)135-436mm
QS45421600		One dome ended, 45*42*1600mm, +0.8/-0.2mm		H lamp 135-1148mm
QF43370170		One flat ended, 43*37*170mm, +0.8/-0.2mm		(T5)135-150mm

QD: quartz sleeve with double-end open
Types		Spec.		Applied UV lamps
QD23200875		Double open ended, 25*22*875mm, +0.8/-0.2mm		(T5)135-843mm
QD23200900		Double open ended, 25*22*900mm, +0.8/-0.2mm		(T5)135-843mm
QD25220890		Double open ended, 25*22*890mm, +0.8/-0.2mm		(T5)135-843mm
QD40361680		Double open ended, 40*36*1680mm, ±0.5mm		(T5)135-1554mm