Back Pressure RegulatorDrastar Co., Ltd

088 High Pressure

Relief / Back Pressure Reducing Regulators

Products Feature

Relief / Back High Pressure Regulators(NPT 1/4” 1/2”)

088 Series is a 1/4” and 1/2” NPT type back-pressure regulator suitable for water, chemical, liquid, gas, etc. Having Cv=0.05 or 0.6 and made of stainless steel 316L, 088 Series is specially suitable for high pressure from 5bar (72psig) up to max 700 bar (10,000psig).

◈ 1/4” or 1/2” NPT back-pressure regulator suitable for high pressure
◈ Controlled pressure ranges: 0.5bar~25bar, 0.5bar~50bar, 10bar~100bar, 20bar~250bar, 30bar~500bar, 40bar~700bar
◈ Wall mounting bracket option
◈ Design proof pressure: 150% of maximum rated
◈ Applicable for water, chemical, liquid, gas, etc.

[DRASTAR Regulators are Oil-free]
※ DRASTAR’s all pressure regulators are assembled, cleaned, inspected, and packed in clean-room equipped with clean bench, helium detector, particle counter, ultrasonic cleaner, ultrapure water system, vacuum packaging machine, etc. through oxygen cleaning procedure in compliance with process and regulations indicated in CGA 4.1. and or ASTM G-93 and are free of any grease or oils.

※ Caution: Filtering (gas 7㎛ ~ 15㎛, water 15㎛ ~ 80㎛) is a MUST to use in the general gas application other than high purity gases. Otherwise, it may cause a failure to the regulators. It is strongly recommended to install filter for extension of life span and saving the maintenance expense.

Ordering Information.

088

025

BASIS
SERIES
NUMBER

BODY
MATERIAL

CONTROLLED
PRESSURE
RANGE

PORTS
TYPE
F NPT

INLET
OUTLET
PORTS SIZE

FLOW
CAPACITY

VALVE
SEAT

HIGH
TEMPE-
RATURE

088 Series

S = Stainless
Steel 316L

H = Hastelloy
C-276

025 = 25bar
         (362psi)

050 = 50bar
         (725psi)

100 = 100bar
        (1,450psi)

250 = 250bar
         (3,625psi)

500 = 500bar
        (7,250psi)

700 = 700bar
        (10,000psi)

A = 2 Ports

L = 3 Ports

R = 3 Ports

2 = 1/2" NPT

1 = 1/4" NPT

S = Cv 0.05

Standard

O = Cv 0.6

Optional

PCTFE

Standard

P=PEEK
V=Vespel

Optional

H1 = 120°C

H2 = 250°C

H3 = 320°C

Optional

Specification

Ports Size	088S-xxxA-1S 2-Ports NPT 1/4" Female 088S-xxxA-2S 2-Ports NPT 1/2" Female
Design Proof Pressure	150% maximun
Leak Rate Certification	to 2 x 10 ^-8 atm cc/sec Helium
Body Materials	088S-xxx-2S Stainless steel 316L 088H-xxx-2S Hastelloy C-276
Bonnet Material	Aluminum #2024 (088SS / Stainless steel 316L Optional)
Diaphragm	088S-xxxA-2S Stainless steel 316L 088S-xxxA-2SH Hastelloy-C22
Main Valve	Stainless steel 316L
Valve Spring	Stainless steel 316L
Valve Seat	Vespel (Teflon, Kel-F, Polyimide, etc.. Optional)
Outlet Pressure Ranges	088S-025A-2S 1~25bar(362psi) 088S-050A-2S 2~50bar(725psi) 088S-100A-2S 4~100bar(1450psi) 088S-250A-2S 6~250bar(3625psi) 088S-500A-2S 10~500bar(7250psi) 088S-700A-2S 15~700bar(10000psi)
Operating Temperature	088S-xxxA-2S -40°C ~ +70°C (-40°F ~ +165°F) Standard 088S-xxxA-2S-H1 +120°C 088S-xxxA-2S-H2 +250°C 088S-xxxA-2S-H3 +320°C +350°C ~ +540°C (+428°F ~ +1000°F) Optional
Flow Capacity	088S-xxxA-2S Cv=0.05 088S-xxxA-2O Cv=0.6 (High Flow)
Optional	Panel mounting bracket
Weight	2.7kg

Recommendations

Each product is manufactured into consideration of the best safety and easy manipulation. However in order to use the regulator in most safe, effective, precise and smooth way and prolong its life time, you are recommended to use the actual pressure within the range of 25% ~ 75% of its rated pressure.

[ Unit conversion program ]

	unit	unit conversion
atmosphere	atm
bar	bar
mbar	mbar
kg_f/cm^2	kg_f/cm^2
Pound per Squire Inch	PSI (= lb/in^2)
dyne per square centimeter	dyne/cm^2

Pascal	Pa
Newton per square meter	N/m^2
Hecto Pascal	hPa
Kilo Pascal	kPa
Mega Pascal	MPa

수주(水柱)밀리미터	mm H_2O (= mm Aq)
수주(水柱)인치	in H_2O (= in Aq)
수은주(水銀柱)밀리미터	mm Hg (= Torr)
수은주(水銀柱)인치	in Hg