費(fèi)希爾Fisher 自動(dòng)轉(zhuǎn)換調(diào)壓器可（在氣體用盡時(shí)）自動(dòng)從供氣鋼瓶轉(zhuǎn)換到備用鋼瓶。 Fisher 749B 型調(diào)壓器是一種大流量轉(zhuǎn)換歧管，用于商業(yè)和工業(yè)應(yīng)用。 該調(diào)壓器由兩個(gè) 64 系列調(diào)壓器和一個(gè) 803 型直通指示器構(gòu)成。 該總成主要用于配合 HSRL 或 64SR 型調(diào)壓器使用。廣州奧麗斯特燃?xì)庠O(shè)備有限公司是美國(guó)FISHER產(chǎn)品華南區(qū)域（廣東?。┌瘓F(tuán)授權(quán)代理商。2020美國(guó)FISHER技術(shù)選型020*叁貳貳0162張S中國(guó)費(fèi)希爾調(diào)壓網(wǎng) 【張工15876552411手機(jī)同微XIN】

功能

大流通能力

UL 認(rèn)證（749B 型，二級(jí)調(diào)壓器單獨(dú)認(rèn)證）

規(guī)格

閥體尺寸

1/2 NPT

入口壓力

250 psig / 17.2 bar

緊急出口壓力

使用 64 型調(diào)壓器：220 psig / 15.2 bar

對(duì)于 HSRL 型末級(jí)調(diào)壓器：3 psig / 0.21 bar

標(biāo)準(zhǔn)出口設(shè)置

供氣：15 psig / 1.0 bar

預(yù)留：5 psig / 0.34 bar

溫度適用范圍

-20° 至 160°F / -29° 至 71°C

Fisher automatic changeover regulators change from the supply cylinder (when gas is exhausted) to the reserve cylinder automatically. Type 749B is a large capacity changeover manifold for commercial and industrial applications. It consists of two 64 Series regulators and a Type 803 direct indicator. The assembly is used primarily in conjunction with either a Type HSRL or 64SR regulator.

Features

Large Capacity

UL Listed (Type 749B, Second-Stage Regulators are Listed Separately)

Specifications

Body Size

1/2 NPT

Maximum Inlet Pressure

250 psig / 17,2 bar

Maximum Emergency Outlet Pressure

For Type 64 Regulators Used: 220 psig / 15,2 bar

For Type HSRL Final Stage Regulator: 3 psig / 0,21 bar

Standard Outlet Setting

Supply: 15 psig / 1,0 bar

Reserve: 5 psig / 0,34 bar

Temperature Capabilities

-20° to 160°F / -29° to 71°C

Fisher China Guangzhou Honest Gas Equipment Co., LTD.

Tel:+86-020-32201622

Mobile phone|weixin:15876552411

E-mail:363495724@qq.com