QZF-89型

NegotiableUpdate on July 04

Model

Nature of the Manufacturer: Other

Product Category: Respiration valve, Flame arrester

Place of Origin: City, Province

Online Consult Contact Information

Overview

QZF-89型

Product Details

QZF-89 all weather resistance fire breathing valve is installed on the fixed roof tank ventilation device, starting to reduce the evaporation loss of oil, control the tank pressure and prevent the external flame into the role. The valve has a large amount of ventilation, small leakage, corrosion resistance and other features, and there is an electrostatic grounding, so that the valve and the tank to maintain the potential. The valve has anti freezing performance and is suitable for cold area.

body material	Carbon steel WCB, stainless steel 304, 316, aluminum alloy
Positive pressure valve disc material	Stainless steel 304, 316, aluminum alloy
Negative pressure valve disc material	Stainless steel 304, 316, PTFE PTFE
ambient temperature ℃	-30~60

positive pressure	353Pa (36mmH2O), 980.7Pa(100mmH2O)
negative pressure	294.2Pa(36mmH2O)

QZF-89 all weather resistance fire breathing valve GB flange connection size： GB、JB

规格	Installation dimensions（mm）
规格	D1	D	L	H	N-d
DN50	Ø110	Ø140	362	360	4×14
DN80	Ø170	Ø185	513	445	4×18
DN100	Ø170	Ø205	513	445	4×16
DN150	Ø225	Ø260	640	610	8×18
DN200	Ø280	Ø315	770	700	8×18
DN250	Ø335	Ø370	918	828	12×18
DN300	Ø395	Ø435	1050	910	12×23

QZF-89 type all-weather fire breathing valve American Standard flange dimensions：ANSI、API、ASME For JISstandard

规格	Installation dimensions（mm）
规格	D1	D	L	H	N-d
2"	120.5	152	362	360	4×14
3"	152.5	190	513	445	4×18
4"	190.5	229	513	445	4×16
6"	241.5	254	640	610	8×18
8"	298.5	343	770	700	8×18
10"	362	406	918	828	12×18
12"	483	432	1050	910	12×23