Quick Comparison Chart

Description Maximum Set Presusre Maximum Operating Temp. Temp. Code Certification
Pilot Operated Safety Relief Vale
6250 psig
505°F (1.200°F with heat Exchange)
ASME Section VIII

2900 PV Pop Action, Non Flowing Pilot Operated Safety Relief Valves

The CONSOLIDATED 2900 PV pop action non-flowing pilot provides excellent performance with full lift at set pressure with minimal blowdown.

Specifications:

Intel Sizes
1″ to 12″ flanged
Intel Ratings (for flanged valves)
ANSI Class 150 to 2500
Outlet Sizes
2″ to 16″ flanged
Outlet Ratings (for flanged valves)
ANSI Class 150 and 300
Orifice Sizes
Sixteen sizes – D through W
Set Pressure Range
15 psig to 6250 psig
Temp. Range
-4.0F to 5.05F
Materials
Stainless steel pilot with carbon steel main base with stainless steel trim. Complete stainless steel main valve and other exotic materials are available.
Code
ASME Section VIII
Pilot Operated Safety Relief Valve
6250 psig
505°F (650°F With Heat Exchanger)
ASME Section VIII

3900 PV Pop Action, Non-Flowing Pilot Operated Safety Relief Valve

The CONSOLIDATED 3900 PV pop action non- flowing pilot provides excellent performance with
full lift at set pressure with minimal blowdown.

Specifications:

Intel Sizes
1″ to 10″ flanged
Intel Ratings (for flanged valves)
ANSI Class 150 to 2500
Outlet Sizes
2″ to 10″ flanged
Outlet Ratings (for flanged valves)
ANSI Class 150 and 300
Orifice Sizes
Fourteen Sizes – D through T plus 1-1/2″ to 10″ full bore
Set Pressure Range
15 psig to 6250 psig
Temp. Range
-40°F to 505°F
Materials
Stainless steel pilot with carbon steel main base with stainless
steel trim. Complete stainless steel main valve and other exotic
materials are available.
Code
ASME Section VIII
POSRV for High Capacity Steam
300 psig
550°F
ASME Section VIII

13900 Pop Action, Flowing Pilot Operated Safety Relief Valve

The CONSOLIDATED 13900 pilot operated safety relief valve series is designed to
contribute to the overall efficiency and profitability of plant operations.

Specifications:

Intel Sizes
16″ to 20″ flanged
Intel Ratings (for flanged valves)
ANSI Class 300
Outlet Sizes
18″ to 24″ flanged
Outlet Ratings (for flanged valves)
ANSI Class 150
Orifice Sizes
114 sq. in. to 201 sq. in.
Set Pressure Range
50 psig to 300 psig
Temp. Range
-250°F to 550°F
Materials
Carbon steel body with stainless steel trim.
Code
ASME Section VIII
Multipurpose Safety Relief Valve
8000 psig
1100°F
ASME Section III & VIII

19000 Series PRV

The 19000 Series of pressure relief valves are ASME B & PVC, Section VIII compliant for liquid service applications. Seat tightness, blowdown and capacity on all types of media meets the industry needs for overpressure protection in
chemical, petrochemical, refinery, power generation (nuclear and conventional) and other commercial applications. NOTE: Colors in the bars above the valves are consistent with tabs throughout this website.

Specifications:

Intel Sizes
1″ to 12″ flanged, Grayloc® or sanitary fitting design
Intel Ratings (for flanged valves)
ANSI Class 150 to 2500
Outlet Sizes
1″ to 2-1/2″ threaded, socket weld, butt weld, flanged or sanitary
fitting design.
Outlet Ratings (for flanged valves)
ANSI Class 150 and 300
Orifice Sizes
096 sq. in. to .567 sq. in
Set Pressure Range
15 psig to 8000 psig
Temp. Range
-425°F to 1100°F
Materials
Stainless steel, Monel, Hastelloy, Alloy 20, and other exotic
materials are available
Code
ASME Section III and VIII

Introduction

The 19000 Series valves are designed and manufactured in compliance with ASME B & PVC, Section VIII and Section III (Class I, II and III) as well as being CEN compliant to the European proposed standards for safety valves. Seat tightness, blowdown and capacity on all types of media meets the industry needs for overpressure protection in chemical, petrochemical, refinery, power generation (nuclear and conventional) and other commercial applications.

General Information

The 19000 Series threaded safety relief valve has 316 stainless steel trim as standard material. Reliable performance and easy maintenance procedures are characteristics of this valve (when properly installed in suitable applications for its design).
The 19000 Series valves has three pressure classes, 19000L (5 through 290 psig), 19000M (291 through 2000 psig), and 19000H (2001 psig and up). Standard 19000 parts are used for both liquid applications and gas applications. It is designed for short blowdown on all medias, typically less than 10%.
All 19000 Series valves have fixed blowdown. This means that the parts are designed so that there is no blowdown adjustment required when setting or testing the valve.

Design Options

a. 0-Ring seat seal valves All 19000 Series valves are available with an 0-Ring seat seal, as a design option. This optional design provides a bubble tightness in excess of 97% of the valve set pressure, in order to meet application requirements beyond the normal capabilities of metal to metal seat valves. 19000 Series valves with the 0-Ring seat seal option are identified by the suffix DA (e.g., 1-19096L-DA).

b. Lifting Levers, Caps and Gags All 19000 Series valves are designed so that field conversion from the standard screwed cap to a plain lifting lever cap, or to a packed lifting lever cap (or vice versa) does not require valve assembly during resetting. The lifting lever option is designed to open the valve at 75% of the valve set pressure, in compliance with ASME B & PVC, Section VIII. Further, all available 19000 Series valve caps may be equipped with a gag, upon customer request.

c. Inlet/Outlet Connections All 19000 Series valves can be provided by CONSOLIDATED with flanges, threaded or socket weld inlet/outlet connections upon customer request.

19000 Standard Valves

This product is normally supplied with threaded inlet and outlet connections. Socket weld or flanged end connections are available as well.
Product type designations change depending on connection sizes, orifice sizes, pressure range, and whether connections are male or female.
Unless otherwise specified, the valve is always supplied with a screwed cap. The exception to this would be where ASME requires levers for steam, air and water service over 140°F (60°C).

Springs of precipitation hardened stainless steel are specified for -75°F to 800°F (-59°C to 426.6°C) and the valves carry a “c” suffix in that case. Inconel springs are used for temperatures 801 °F to 1100°F (427.2°C to 593.3°C) and the valve carries a “t” suffix. When selecting valves for back pressure applications, the following limits apply.

  •    Constant back pressure: 400 psig maximum
  •    Variable back pressure (superimposed or built-up): 400 psig or 10% of set pressure, whichever is smaller.

Product variations consist of:

  •    19000SG – Sour Gas Trim
  •    19000DA – Soft Seat
  •    19000MBP- Back Pressure Compensation

Product material variations include:

  •    316 Stainless Steel
  •    Monel
  •    Hastelloy
  •    Alloy 20
Conventional Safety Relief Valve
6200 psig
1500°F
ASME Section III & VIII

1900 Series

The 1900 Series of pressure relief valves provides a wide scope of design in both pressure and temperature ranges. ASME B & PVC, Section VIII certified for vapor, liquid and steam applications meets most overpressure protection requirements of today’s industry. Check the tabs below for additional product information and option.

Specifications:

Intel Sizes
1″ to 12″ flanged, Grayloc® or sanitary fitting design
Intel Ratings (for flanged valves)
ANSI Class 150 to 2500
Outlet Sizes
2″ to 16″ flanged
Outlet Ratings (for flanged valves)
ANSI Class 150 and 300
Orifice Sizes
Sixteen sizes – D through W
Set Pressure Range
15 psig to 6250 psig
Temp. Range
-450°F to 1500°F
Materials
Cast carbon steel body with stainless steel trim is standard.
Special alloys are available for specific applications.
Code
ASME Section III and VIII

Introduction

The comprehensive line of spring loaded CONSOLIDATED safety relief valves represents over one hundred years of valve manufacturing experience in meeting and solving industry problems involving a wide scope of valve applications. The flanged CONSOLIDATED safety relief valve line consists of valves in a variety of sizes and materials. Each product offering is unique and judgements are required in selecting the proper option. To accomplish the selection process start with the General Information section of this catalog and follow the prescribed steps necessary to finalize the selection. This Section, 1900 SRV, should be reviewed against the user’s specifications and product offerings selected. Beyond this step, proceed with sizing and then confirmation of the pressure and temperature limits (API or ASME). 1900 Flanged Series safety relief valves are supplied in many variations to suit specific applications.

Product variations covered in subsequent pages are noted below:

  • 1900 Conventional
  • 1900-30 Bellows Construction
  • 1900-35 Balanced Bellows with Auxiliary Balancing Piston
  • 1900HA Special Materials for Hydrofluoric Acid Service
  • 1900SG Sour Gas Trim
  • 1900DA Soft Seat
  • 1900LA Liquid Trim with Metallic Seats
  • 1900DA – LA Liquid Trim with Soft Seats
  • 1900TD Special Trim for Steam & Organic Heat Transfer Media

1900 Series Conventional Safety Relief Valves

Steel, Flat Seat, Top Guided, High Capacity, Stainless Steel Trim

This standard rugged configuration is equipped with corrosion resistant trim and a carbon steel body, bonnet and cap. The components are top guided, providing for free and repeatable action. The flat disc seat provides for easy maintenance and remachining. The exclusive “Eductor Tube” minimizes bonnet cavity pressure so that product performance is predictable. The nozzle is bottom inserted and rigidly held in position, providing a corrosion resistant path of flow to the valve and corrosion resistant seating surfaces.

1900-30 Series Bellows Construction

This valve is the same as the conventional design except that a bellows has been added. When the bellows is installed, the eductor tube is removed. Caution: It is important that the bonnet be vented to the atmosphere. A bellows is added to the conventional valve to deal with any of several situations:

Back pressure entering the valve through the valve outlet is excessive or variable. If back pressure fluctuates with ±10% of a nominal value, a bellows is required. If a built up back pressure exceeds 10% of the set pressure or cold differential set pressure, a bellows must be used.

If the entering fluid is a slurry, highly viscous, or of a nature that it can enter the critical clearances between the guides/disc holder, protect that area with a bellows. If the fluid being handled is corrosive to the upper works of the valve, isolate the bonnet chamber through use of a bellows. Conventional valves can be easily converted to a bellows design or vice versa through the use of retrofit kits. All CONSOLIDATED

1900-30 Series valves are balanced bellows designs, meaning that they fully compensate for the effects of back pressure.

1900-35 Series Balanced Bellows (with Auxiliary Balancing Piston)

The Balanced Bellows seals the body and fluid stream from the bonnet and working parts. Auxiliary balancing piston assures proper valve performance by compensating for back pressure in case of bellows failure. The use of an auxiliary balanced piston is indicated when:

back pressure (either constant or variable) exists and; excessive pressure may build in the bonnet as a result of pressure build-up in the bonnet vent piping and; resultant build-up of pressure in the bonnet would cause a dangerous condition.
Caution: It is important that the bonnet be vented to the atmosphere.

Codes and Standards

The Consolidated 1900 series is compliant with the following codes and standards:

ASME B & PVC, Section II – Material

(Applicable as required by ASME B & PVC, Section III or VIII)

ASME B & PVC, Section III, class 2 and 3 (Gas, Vapor, and Liquid Service)

ASME B & PVC, Section VIII (Gas, Vapor, and Liquid Service)

ASME B16.34 and ASME B16.5

API 520, 526 and 527

ISO 4126

NACE MR0175 Standard Material Requirements

API Standard 526-1995

Safety relief valves specified within this catalog comply with API standard 526 – Fourth Edition, 1995. The 1900 Series valves previously complied with API standard 526 – Third Edition, 1984. In some cases dimensional and nominal flanges sizes differ between these two editions. When ordering replacement valves that must comply with API Standard 526 – Third Edition, 1984, contact the factory for verification of the correct replacement.

Safety Relief Valve
5000 psig
850°F
ASME Section I

1900 P1 and P3

Standard in both types, the patented Thermodisc” Seat is designed for a
high degree of seat tightness. Designed for ASME B & PVC, Section I
organic fluids, flashing water and limited steam applications. (The PI and
P3 series designs are not for ASME B & PVC, Section I Boiler Drum,
Superheoter or Reheafer applications.)

Specifications:

Intel Sizes
1″ to 8″ flanged
Intel Ratings (for flanged valves)
ANSI Class 150 to 2500
Outlet Sizes
2″ to 10″ flanged
Outlet Ratings (for flanged valves)
ANSI Class 150 and 300
Orifice Sizes
Fourteen sizes – D through T
Set Pressure Range
15 psig to 5000 psig
Temp. Range
-20°F to 850°F
Materials
Carbon Steel body with stainless steel is standard.
Code
ASME Section
High Capacity, Low Pressure
Applications
500 psig
800°F
ASME Section I

1982 Pressure Relief Valve

ASME B & PVC, Section VIII certified threaded connection pressure relief
valve for vapor and steam service opplications.

Specifications:

Intel Sizes
1/2″ to 2″ threaded
Intel Ratings (for flanged valves)
Outlet Sizes
3/4″ to 2-1/2″ threaded
Outlet Ratings (for flanged valves)
Orifice Sizes
Five sizes – .121 sq. in. to 1.399 sq. in.
Set Pressure Range
15 psig to 5000 psig
Temp. Range
-20°F to 800°F
Materials
Stainless steel base with stainless steel trim is standard.
Code
ASME Section VIII
  • GE imagination Ot work
  • Bonomi North America.INC
  • Apollo
  • WATTS
  • Garlock