Safety Relief Valve


For Steam - Air - Gas : AGH400L

PRESSURE SETTINGS: TO 800PSI. AIR/GAS, TO 800 PSI.STEAM,


Extra heavy, rugged construction Both inlet and outlet connections are cast integral with body to permit easy inspection and servicing without disconnecting inlet or discharge piping. This Design is metal concept for long life use.

SPRINGS : Steel, cadmium plated, are standard, These valves are available with stainless steel springs and with all hardware of brass, bronze or stainless steel for low temperature cryogenic service.

Note 1 - S/S seat and disc is handwheel equipped for quick variation of setting

Note 2 - S/S seat and disc pressure tight cap. ASME Std.for gas.

Note 3 - Has Stainless steel seat and disc, for steam (except on boiler) and air

APPLICATION : Unfired pressure vessels only. Gas lines, compressors, Boilers and separators

CONNECTIONS : Unfired pressure vessels only. Gas lines, compressors, Boilers and separators

SIZE AND PRESSURE RANGE


Inlet Outlet Maximum Set Pressure PSIG
Male NPT Female NPT Air-Gas 300° F. @Steam 406° F.
Male Inlet Female Inlet Male Inlet Female Inlet
½” ¾” 1 800 800 800 800
¾” ¾” 800 800 800 800
1” 1” 800 800 800 800
1 ¼” 1 ¼” 800 800 800 800
1 ½” 1 ½” 800 800 800 800
2” 2” 800 800 800 800

OPTIONAL ACCESSORIES


  1. All sizes available with female NPT inlet-optional
  2. All sizes : 150# or 300# flange inlet x 150# outlet
  3. Pressure tight cap & lever with cap will be optional
  4. Manual test levers as optional extra.
  5. Outlet ½” for inlet ½” valve is optional on requirement.
  6. BSP Thread as required.

For Steam - Air - Gas - Liquid : AGH200

PRESSURE SETTINGS: 15-500 PSI


These high pressure safety valves combine extra sturdy construction, a patented* three-piece disc including seat seal of Teflon, and finely adjustable blow down control-resulting in long service life with superior seat tightness at operating pressure

APPLICATION : Multi-stage compressor intercoolers and after coolers, Receivers
Especially recommended for thermal expansion relief and/or full rated capacity discharge. When equipped with S/S springs, or all stainless steel assemblies, for low temperature-cryogenic- installations.

SIZE RANGE


Size Cap Construction Maximum Setting PSIG
Inlet M NPT Outlet Fe NPT
½” ½” Plain lift lever Capped – no lever 500
½” ¾” 500
¾” ¾” 500
¾” 1” 500
1” 1” 500
1 ¼” 1 ¼” 500
1 ½” 1 ½” 500
1 ½” 2” 500
2” 2” 500

OPTIONAL ACCESSORIES


  1. S.S. Springs
  2. Plain lever & packed lever with cap
  3. Soft seat valve on requirement for leak proof performance

For Steam - Gas - Liquid - Steam

PRESSURE SETTING 15 TO 50 PSI ONLY


This Valve Normally know as thermal safety relief valve In accordance with A.S.M.E. Code Section IV. Low Pressure Heating Boilers, water pipe line, solvent line, gas line (Hazardous) this valve giving smooth service. Available thru D TO J orifice designations, Stainless Steel trims are under standard practice. Closed screwed cap will be provided if not specified.

APPLICATION : For “cold” to liquefied air, gas, oxygen, cryogenic, service for unfired pressure vessels, Transfer lines and gas systems

CAPACITIES


15-50 PSI. SET (Adjustable ) PRESSURE – 20% ACCUMULATION

Orifice Designations
D
E
F
G
H
J
PARTS AND MATERIALS
Description
Cap, Lifter and Lever Malleable Iron
Pins and Locknut MILD STEEL
Lever Nut MILD STEEL
Pressure Screw AISI 304
Lock Nut AISI 304
Spring BUTTONS AISI 410
Spring Spring steel EN 45
Spindle AISI 410 / AISI 316
Guide AISI 316
Disc Forged Copper Alloy/SS 316
Disc Holder Cast Bronze /SS 316
Semi-Nozzle Bronze / SS 304 /SS 316
POPPING Ring Cast Bronze / SS 316
Body WCB / CF8 /CF8M/BRONZE

OPTIONAL ACCESSORIES


  1. Closed cap with packed lever design
  2. Flanged end at outlet end

For Steam - Air - Gas

PRESSURE SETTINGS


STEAM TO 750 PSI. , AIR/GAS TO 750 P.S.I. , Liquid To 750 PSI.


This valve having standard assembly of cast steel / bronze / Stainless Steel with flat seats& wing guided discs for Air usage & flat discs for Gas, Steam & Liquid applications. Either type is available with S.S spring & with all trims of bronze or S.S for low temperature-cryogenic-service. These series safety valves we offer with soft seat-sealing Teflon washer to produce superior seat tightness for special application like “Cold” liquefied air, gas, oxygen service. These valves normally comes with BSP(M) Inlet & BSP (Fe) Outlet Threads. This valve have unique construction in single piece of body-bonnet as a compact look.

These series of valve available with plain lifting lever, packed lifting lever, gag & flanged connection, seal welded to valve base or body

APPLICATIONS : For protection of unfired pressure vessels only, gas compressors and systems handling hazardous or noxious gases requiring valves which are pressure tight on downstream side. This safety valve used for process and general application of all state natures on equipments or systems.

PARTS AND MATERIALS


DESCRIPTION MATERIAL
BODY GUN METAL/CF8/CF8M/CF3M
PISTON GUIDE AISI 304 / AISI 316
PISTON AISI 304 / AISI 316
CAP CAST IRON
NOZZLE SEAT GUN METAL/CF8/CF8M/CF3M
SETTING SCREW SS 304
SETTING SCREW NUT SS 304
SPINDLE AISI 410
SPRING BUTTON AISI 410
SPRING SPRING STEEL EN-45

SIZE RANGE


  1. Inlet : ½” To 2” (BSP-M/NPT-M/Flanged End)
  2. Outlet : ½” To 2” (BSP-F/NPT-F/Flanged End)
Inlet Threaded Male Orifice Designation Outlet Threaded Female Max.Set Press.PSI Carbon Steel Spring
½” D ¾” 750 750
¾” E 1 750 750
1” F 1 ½” 750 750
1 ¼” G 1 ½” 750 750
1 ½” H 2” 750 750
2” J 2” 750 750

OPTIONAL ACCESSORIES


  1. Closed cap with packed lifting lever (On Specific Requirement)
  2. Stainless Steel Spring
  3. Pressure Tight Hold, Cap with Gag, Packed with Gag or any special

For Liquid

PRESSURE RATINGS – 50 to 3500 PSI


These high pressure valves combines’ special seat construction with very nominal dia of inlet bore area. These valve seat area is bevel type for zero leak proof tightness at operating pressure up to 3500 PSI with 33% accumulation. This valve having small Orifice Designation to control & Safety of Line. This valve pressure is adjustable

APPLICATIONS : A Stainless steel valve used for process & general applications like water on equipment or Pump System.

SIZE RANGE


IN LET OUT LET ORIFIES
½” ½” D
¾” ¾” D
1” 1” D

FOR STEAM - Air - Gas

PRESSURE SETTING - STEAM – 750 PSI. AIR / GAS 750 PSI


These valves having alloy disc and full nozzle - Seats lapped to optical flatness. These valves available with Teflon (PFA) disk insert for hazardous application and cryogenic application. Valve housing is heavy cast steel construction of body provides comfort wrench clearance for easy installation. Valve will be Factory tested and adjusted for precise opening and for correct blow down. These series involves flacker designs offer Full Flow Discharge Capacity with use of metal to metal contact surface.

PARTS AND MATERIALS


DESCRIPTION MATERIAL DESCRIPTION MATERIAL
Body WCB / CF8 / CF8M/BRONZE Lever Pin M.S
Regulator Ring CF8M/BRONZE Lever WCB /SGI
Reg. Ring Sat Screw SS 304 Lift Nut M.S
Disc AISI 316 / BRONZE Ball S/S
Guide Set Screw SS 304 Guide AISI 304
Lock nut SS 304 Cap SGI
Stem AISI 410
Spring Spring Steel EN 45
Spring Button AISI 410
Pressure screw AISI 304

DIMENSIONS


INLET/ ORIFICE/ OUTLET DISCHARGE AREA SQ. IN CONNECTIONS
INLET OUTLET
½ X D X ¾
¾ X D X ¾
0.121
0.121
½” M.
¾” M.
¾” F.
¾” F.
¾ X E X 1
1 X E X 1
0.216
0.216
¾” M.
1” M.
1” F.
1” F.
1 X F X 1 ¼
1 ¼ X F X 1 ¼
0.338
0.338
1” M.
1 ¼” M.
1 ¼” F
1 ¼” F
1 ¼ X G X 1 ½
1 ½ X G X 1 ½
0.554
0.554
1 ¼” M
1 ½” M.
1 ½” F
1 ½” F
1 ½ X H X 2
2 X H X 2
0.863
0.863
1 ½” M.
2” M.
2” F
2” F
2 X J X 2 ½
2 ½ X J X 2 ½
1.414
1.414
2” M.
2 ½” M.
2 ½” F
2 ½” F

NOTE: Complete Dimension Furnished on Request.

OPTIONAL ACCESSORIES


  1. Closed Cap With Packed Lever
  2. Teflon Seated (PFA) for leak free performance in hazardous application.
  3. S.S. Stem &Moc recommended for use on several conditions.
  4. NPT inlet on specific requirement.
  5. Pressure hood on special requirement.
  6. Pressure seal arrangement if required.

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