DRASTAR – 077 Low Pressure Regulator (NPT 1/4”)

PRE-ORDER: 4-6 WORKING WEEKS

 

Description

077 Low Pressure

Relief / Back Pressure Reducing Regulators

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

077 Series is a 1/4” NPT type relief/back-pressure regulator suitable for water, chemical, liquid, gas, etc. Regulator’s body is made of brass (077B) or stainless steel 316L (077S) and 077 Series can be used for very low pressure of 0.3bar (5psig) up to 20 bar(290 psig).

★ 1/4” NPT type back-pressure regulator
★ Push and lock type handle (DRASTAR patent #10-1086199) mounted
★ Controlled pressure ranges: 0.2bar~2bar, 0.5bar~5bar, 1bar~10bar, 2bar~20bar
★ Panel mounting nut or wall mounting bracket as option
★ Design proof pressure: 150% of maximum rated
★ Applicable for water, chemical, liquid, gas, etc.
★ W077S-0000x-1S: W model is only for liquid or water

With DRASTAR’s patented (patent #1086199) “push and lock type handle”, you can operate it easily and stably; “locking” by pushing down the handle will prevent any slight change of pre-set pressure value, which could possibly be caused by any vibration from gas pipeline or ambient applications and the other way “unlocking” by pulling it back enables you to adjust the pressure value freely again.

[DRASTAR Regulators are Oil-free]
DRASTAR’s all pressure regulators are assembled, cleaned, inspected, and packed in clean-rooms 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:

(W) 077 S 002 A 1S H H1
BASIS
SERIES
NUMBER
BODY
MATERIAL
CONTROLLED
PRESSURE
RANGE
PORTS INLET
OUTLET
PORTS SIZE
DIAPHRAGM
MATERIAL
HIGH
TEMPE-
RATURE
077 Series S = Stainless
Steel 316L
002 = 2bar(30psi)

005 = 5bar(72psi)

010 = 10bar(145psi)

020 = 20bar(290psi)

 

A = 2Ports
L = 3Ports
C = 4Ports
R = 3Ports
M = 4Ports

*Previous*
2 = 2Ports
3 = 3Ports

 

 

1 = NPT 1/4″
S = Cv 0.2
Standard

*Previous*
NP4 = NPT1/4″

Stainless
steel 316L
Standard

H = C22
(Hastelloy)
Optional

 

 

H1 = 120°C

H2 = 250°C

H3 = 320°C

 

 Optional

※ Note: 1) (W) model is only for liquid and water.
2) H1, H2, H3 option is not available for brass products.
※Drastar’s push and lock type handle (patent 10-1086199) is not applicable for aluminum control knob such as H1, H2, & H3 options.

 

Specification :

Ports  NPT 1/4″ Female
077S-xxxA-1S   2-Ports
077S-xxxL-1S   3-Ports
077S-xxxC-1S  4-Ports
 Design Proof Pressure  150% maximun rated
 Leak Rate  Certification  to 2 x 10 -8 atm cc/sec Helium available.
 Body Materials  077S-xxxA-1S   Stainless steel 316L
077B-xxxA-1S   Nickel Plated Brass
 Bonnet Material  Nickel Plated Brass (077SS / Stainless steel 316L Optional)
 Diaphragm  077S-xxxA-1S   Stainless steel 316L
077S-xxxA-1SH   Hastelloy-C22 Optional
 Main Valve  Stainless steel 316L
 Valve Spring  Stainless steel 316L
 Valve Seat  Teflon (Kel-F, Polyimide, etc.. Optional)
 Outlet Pressure  Ranges  077S-002x-1S   2bar(25psi)
077S-005x-1S   5bar(70psi)
077S-010x-1S   10bar(145psi)
077S-020x-1S   20bar(290psi)
 Operating  Temperature  -40°C ~ +70°C (-40°F ~ +165°F)   Standard
077S-002x-1S-H1 +120°C   Optional
077S-002x-1S-H2 +250°C   Optional
077S-002x-1S-H3 +320°C   Optional
+250°C ~ +540°C (+328°F ~ +1000°F)   Optional
 Flow Capacity  Cv = 0.2 Standard
 Optional  Inlet and Outlet Gauge etc..
 Weight  1.0kg

Additional information

Weight 1 kg
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