GTL-Z44H Z48H P48H Quick Blowdown Valve

Z44H/Z48H/P48H quick blowdown valve is evolved from gate valve. It uses the gear to rotate 90℃ to drive the valve stem to lift to realize the purpose of opening and closing. Z44H sewage valve is not only simple in structure and good in sealing performance, but also small in installation size, low in material consumption, light in weight and small in volume, especially small driving torque, easy to operate, and easy to open and close quickly.

DETAILS

Specifications：

Model	Nominal pressure	Test pressure Ps（MPa）		Suitable medium	Suitable temperature（℃）
		-	-
P44 48H-16C	1.6	2.4	1.8	Water, steam	≤250
P44 48H-16
P44 48H-25C	2.5	3.8	2.8
P44 48H-25					≤425
P44 48H-40C	4.0	6.0	4.4
P44 48H-40					≤250

Materials：

Name of parts	Body,Bonnet	Seat,Disc	Stem	Gear shaft	Packing	Gasket	Wrench
P44 48H-16C P44 48H-25 P44 48H-40	Cast steel	Chromium stainless steel	Chromium stainless steel	Chromium stainless steel	Asbestos packing impregnated with Graphite and oil	Asbestos Rubber Sheet	Ductile cast iron

Dimensions and weight：

PN（MPa）	DN（mm）	Size									Weight（kg）
PN（MPa）	DN（mm）	L	D	D1	D2	D6	b	ZΦd	H	LO	-
1.6	25	180	115	85	65	-	14	4-Φ14	160	180	10
	32	200	135	100	78	-	16	4-Φ18	180	200	11
	40	230	145	110	85	-	16	4-Φ18	220	220	16
	50	250	160	125	100	-	16	4-Φ18	230	240	20
	65	265	180	145	120	-	18	4-Φ18	250	280	28
	80	280	195	160	135	-	20	8-Φ18	280	350	38
2.5	25	180	115	85	65	-	16	4-Φ14	160	180	10
	32	200	135	100	78	-	18	4-Φ18	180	200	11
	40	230	145	110	85	-	18	4-Φ18	220	220	16
	50	250	160	125	100	-	20	4-Φ18	230	240	20
	65	265	180	145	120	-	22	8-Φ18	250	280	28
	80	280	195	160	135	-	22	8-Φ18	280	350	38
4.0	25	180	115	85	65	58	16	4-Φ14	160	180	10
	32	180	135	100	78	66	18	4-Φ18	180	200	11
	40	230	145	110	85	76	18	4-Φ18	220	220	16
	50	250	160	125	100	88	20	4-Φ18	230	240	20
	65	265	180	145	125	110	22	8-Φ18	250	280	28
	80	280	195	160	135	121	22	8-Φ18	280	350	38