Emerson 627W Arkusz Danych Pobierz pdf (Strona 1)

Bulletin 71.1:627W

October 2009

D102088X012

www.sherregulators.com

Types 627W and 627WH Direct-Operated Pressure

Reducing Liquid Regulators

Introduction

The Types 627W and 627WH are direct-operated pressure

reducing regulators for liquid service. They are available

in NPS 3/4, 1, and 2 (DN 25 and 50) body sizes and in

a wide range of materials of construction to match most

service conditions.

A control line version is available in either the Type 627W or

the Type 627WH (a higher pressure range unit). Both units are

available with either internal or external downstream pressure

registration. A control line is required for the external pressure

registration version. The control line version has a blocked

throat with an O-ring stem seal and a 1/4 NPT control line

connection in the diaphragm case (Figure 2). The stem seal

separates the body outlet pressure from the diaphragm case.

Features

• Application Versatility—The regulators can be used in

nearly all liquid applications where constant downstream

pressure is required.

• Easy to Maintain—Trim parts can be replaced

without removing the regulator body from the

pipeline. A two-bolt connection between the body

and diaphragm casing simplies disassembly

for maintenance.

• Tamper-Resistant—An adjusting screw locknut

and protective cap (Figure 1) are standard on all

Type 627W regulators to discourage tampering with

the pressure setting.

• Tight Shutoff Capability—A at-faced disk of

Nylon (PA) or various elastomers provides excellent

shutoff capability.

• Installation Adaptability—The diaphragm case and/or

regulator body can be rotated in any of four positions to

allow regulator installation in locations with limited space.

The regulator may be installed in any position without

affecting operation as long as the spring case vent is

protected from the elements.

• Versatility—The Types 627W and 627WH are available

in six spring ranges, ve disk materials, and three

different body materials. The body is available in NPT,

ASME anged, and EN anged constructions.

Figure 1. Type 627W Pressure Reducing Liquid Regulator

W6309

Principle of Operation

The Type 627W or 627WH (refer to Figure 2) is a direct-

operated regulator. On the internal registration version,

downstream pressure is registered internally through the body

to the under side of the diaphragm. When the downstream

pressure is at or above the set pressure, the disk is held

against the seat, and there is no ow through the regulator.

When demand increases, downstream pressure drops slightly

allowing the spring to extend, moving the stem down and the

disk away from the seat. This allows ow through the body to

the downstream system.

Types 627W and 627WH direct-operated regulators are also

available in a downstream control line version. This version has

a stem seal between the body outlet pressure and diaphragm

case. Pressure is registered under the diaphragm through the

1/4 NPT downstream control line connection (Figure 2).

1 2 3 4 5 6 ... 11 12

Podsumowanie treści

Strona 1 - Reducing Liquid Regulators

Bulletin 71.1:627WOctober 2009D102088X012www.sherregulators.comTypes 627W and 627WH Direct-Operated Pressure Reducing Liquid RegulatorsIntroductionTh

Strona 2

Bulletin 71.1:627W10Figure 4. DimensionsTYPE 627WBody Sizes,NPS (DN) Dimesions, Inches (mm)A BDE GDuctile IronSteel or SST3/4, 1 (25)4.06(103)1.94(49

Strona 3

Bulletin 71.1:627W 11TYPE 627WHFlanged BodyDimesions, Inches (mm)Body Size,NPS (DN)A BD EGCL150 RFCL300 RFCL600 RFCL150 RFCL300 RFCL600 RFPN 16/25/40C

Strona 4

Bulletin 71.1:627WThe Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owner

Strona 5

Bulletin 71.1:627W2SpecicationsAvailable Constructions Type 627W: Direct-operated pressure reducing liquid regulator (Figure 2). Type 627WH: Type

Strona 6

Bulletin 71.1:627W 31/4 NPT CONTROL LINE CONNECTION1/4 NPT CONTROL LINE CONNECTIONW6483-2W5482-1DETAIL OF TYPE 627WH WITH EXTERNAL DOWNSTREAM PRESSURE

Strona 7

Bulletin 71.1:627W4Table 1. Maximum Inlet Pressure, Differential Pressure, and Outlet Pressure RangesTYPE NUMBEROUTLET PRESSURE RANGE CONTROL SPRING

Strona 8

Bulletin 71.1:627W 5Figure 3. Monitor Regulator SchematicA6623CONTROL LINEWORKING REGULATORMONITORTYPE 627W SET HIGHER THAN WORKING REGULATORTYPE 627

Strona 9

Bulletin 71.1:627W6Table 4. Water Capacities(1) for the Type 627W Regulator in GPM (l/min) with or without a downstream control lineOUTLET PRESSURE R

Strona 10

Bulletin 71.1:627W 7Table 5. Water Capacities(1) for the Type 627WH Regulator in GPM (l/min) with or without a downstream control lineOUTLET PRESSURE

Strona 11

Bulletin 71.1:627W8Table 6. Cv Coefcients(1) for the Type 627W Regulator with or without a downstream control lineOUTLET PRESSURE RANGE AND CONTROL

Strona 12

Bulletin 71.1:627W 9Table 7. Cv Coefcients(1) for the Type 627WH Regulator with or without a downstream control lineOUTLET PRESSURE RANGE AND CONTRO

Więcej dokumentów dla Nie Emerson 627W

Aby wyświetlić dokument Emerson 627W Arkusz Danych

Emerson 627W Arkusz Danych (1 strony)

Aby wyświetlić dokument Emerson 627W Instrukcja Obsługi

Emerson 627W Instrukcja Obsługi (12 strony)

Aby wyświetlić dokument Emerson 627W Przewodnik Instalacji

Emerson 627W Przewodnik Instalacji (4 strony)

Aby wyświetlić dokument Emerson 627W Rysunki i Schematy

Emerson 627W Rysunki i Schematy (1 strony)

Komentarze do niniejszej Instrukcji

Brak uwag

Emerson 627W Arkusz Danych Strona 1

Przeglądaj online lub pobierz Arkusz Danych dla Nie Emerson 627W. Emerson 627W Data Sheet Instrukcja obsługi

Podsumowanie treści

Więcej dokumentów dla Nie Emerson 627W

Komentarze do niniejszej Instrukcji

Emerson 627W Arkusz Danych Strona 1

Przeglądaj online lub pobierz Arkusz Danych dla Nie Emerson 627W. Emerson 627W Data Sheet Instrukcja obsługi

Podsumowanie treści

Więcej dokumentów dla Nie Emerson 627W

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Nie Emerson 627W