Best Pressure Safety Valve Manufacturer

EE-PSV-V18 series pressure relief portfolio provides a complete range of standard and customized solutions,
whatever demand you have for pressure protection. ENVERDANT is an industry leader in best pressure safty valve manufacturer. A single point provider, we offer an extensive product range for reliable performance with lower
valve life-cycle costs and unique solutions. Our unmatched technical expertise provides you with the pressure
management products, application solutions and services that will positively impact your business.

In General, Pressure Safety (relief) valves may be considered as stop valves that close using a steady
force insisting directly on the disc, thus no external actuator is needed. When fitted in a pressurized system,
they remain normally closed and open only if the force generated by the pressure is higher than the
corresponding thrust insisting on the disc. Safety valves are conceived to keep the pressure of the system,
where they are fitted, under a stated value by discharging as much fluid as necessary for this purpose. The
force on the disc may be imposed through: a weight, a weight and a lever, a spring. Weight loaded valves have
a lift higher (and thus a higher flow) than spring loaded valves, being all other conditions unchanged, because
the latter reacts proportionally to the lift while the former has a constant opposite force. On the other hand,
weight loaded valves have some disadvantages due to the inertial effect of the moving parts, which limits their
use to light duties with low set pressure. Standards Referred & Content of Product Technical are given below.

Normative Reference

ASME Sec. VIII for Design of Pressure Devices and over pressure
API STANDARD 520 – Part I (2008) & PART (2003), Sizing, Selection, Installation, Operation and Maintenance of Pressure Reliving Devices in Refineries – Sizing and Selection
API STANDARD 526 (2009) – Flanged Steel Pressure Relief Valves
API STANDARD 527 (1991) – Seat Tightness of Pressure Relief Valves
ISO 4126-1 (2004), Safety Devices for Protection against excessive pressure – Safety Valves
ISO 4126-7 (2004), Safety Devices for Protection against excessive pressure – Common Data
ISO 4126-9 (2009), Safety Devices for Protection against excessive pressure – Application and Installation of Safety devices excluding stand-alone bursting disc safety devices
ISO-WD 4126-11 (2011), Safety devices for protection against excessive pressure – Performance Testing

BEST SPRING LOADED SAFETY VALVE

ENVERDANT manufactures a complete range of spring-loaded pressure relief valves from a general pressure protection to the extreme conditions. Designed, certified and tested in accordance to most codes and standards around the world like ASME, API and EN. They are available in a large array of materials, from carbon steels to nickel alloys, duplexes, titanium, brass, with cast, forged or HIPS bodies.

EE-PSV-V18-01

Soft seated safety valves gives repeatable leak-free performances with low cost maintenance. With an instantaneous pop full opening and externally adjustable blowdown.

Inlet Sizes Available : 15 to 50 NB
Outlet Sizes Available : 25 to 50 NB
Set Pressure : 2 Bar(g) to 22 bar(g)
Connections Available: Threaded NPT & Flanges ANSI
Applications : Cryogenic gases or liquid in thermal expansion. Oxygen service. Hard-to-hold gases. High pressure services.

EE-PSV-V18-02

Conventional and balanced bellows spring loaded Pressure Relief Valves designed and built in accordance with API Standards 526 and 527 for gases and steam.

Inlet Sizes Available : 25 to 250 NB
Outlet Sizes Available : 40 to 400 NB
Set Pressure : 1 Bar(g) to 380 bar(g)
Connections Available : Flanges ANSI 150 # to 2500 # or EN 1092-1 PN 10 to PN 40
Applications : Medium to high pressure gas and liquid relief applications at Oil & gas, refining, chemicals.

BEST PIOLET OPERATED SAFETY VALVE

ENVERDANT can solve the most demanding pressure protection challenges with its broadest range of pilot operated pressure relief valves. It provides a reliable protection at low operating costs. With pop or modulating action, from cryogenics to high temperatures, designed, certified and tested in accordance to most codes and standards around the world, our pilot operated pressure relief valves are available in many materials and configurations to suit all applications, including dirty fluids, while reducing weight, enabling in-line checking and maintenance for lower cost of ownership.

EE-PSV-V18-03

This modulating pilot operated pressure relief valve is specifically designed to handle hot water, steam, hot hydrocarbons vapors or liquids and other aggressive fluids, using only inert plastic soft goods.

Inlet Sizes Available : 15 to 200 NB
Outlet Sizes Available : 25 to 250 NB
Set Pressure : 2 Bar(g) to 34 bar(g)
Connections Available: Flanges ANSI 150 # to 900 #
Applications : Hot water and process steam. Aggressive media, gases, liquids or mixed phases

EE-PSV-V18-04

Series are the higher-pressure versions. A modulating valve that utilizes the most advanced design in pilot technology. It is ideal on gas, liquid and mixed phase, including dirty applications, with a full modulating action up to 390 Bar(g

Inlet Sizes Available : 25 to 100 NB
Outlet Sizes Available : 40 to 150 NB
Set Pressure : 80 Bar(g) to 390 bar(g)
Connections Available: Flanges ANSI / API or Threaded if less than 25 NB
Applications : High pressure gas, vapor, liquid and mixed phase.

BEST STEAM AND POWER SAFETY VALVE

ENVERDANT Protecting steam processes
against over-pressure has always been one of
the most challenging duties for engineers.
spring loaded, pilot operated, or power
assisted, with certifications from ASME I & VIII,
TÜV, LLOYDS and others, we have built on a
rigid experience to provide the safety valve that
will fit your exact requirements to reliably
protect assets.
From low pressure steam to super-critical
boilers, each safety valve is supported with
some of the largest steam testing facilities in
the world.

EE-PSV-V18-05

For saturated and superheated steam service. This series is the workhorse for medium pressure boilers. It is also certified for economizer applications when a spring loaded safety valve is preferred.

Inlet Sizes Available : 25 to 100 NB
Outlet Sizes Available : 32 to 150 NB
Set Pressure : 2 Bar(g) to 86 bar(g)
Connections Available : Flanges ANSI 150 # to 900 #
Temperature Range : Up-to 400⁰ C
Applications : Medium pressure boilers. Steam accumulators. Economizer. Process steam systems.

EE-PSV-V18-06

Provides exacting protection for boiler drums and super-heaters, reheaters or any other high pressure steam applications. Available with restricted lift for full flexibility according to the needs of the application. With two assembly it fits the applications.

Inlet Sizes Available : 25 to 100 NB
Outlet Sizes Available : 40 to 150 NB
Set Pressure : 20 Bar(g) to 180 bar(g)
Connections Available : Flanges ANSI
Temperature Range : Up-to 320⁰ C
Applications : Boiler drums and super-heaters. Reheaters. Saturated and super-heated steam.

TOP RATED LOW PRESSURE RELIEF VALVE

The soft seats of LPRF are specially designed to provide extreme tightness even under the lowest pressures. Designed for extremely accurate with low-pressure protection with configuration flexibility for ease of maintenance and enhanced reliability. Available in carbon steels, Alloy Materials, and stainless steel. Designed, certified and tested in accordance to most codes and standards like ASME VIII.

EE-PSV-V18-07

The modular concept allows them to be used in the pilot operated pressure relief mode and simultaneously provides vacuum relief, either via weight load or with a specific vacuum pilot. They can also be used for pressure only (blocked on vacuum) or vacuum only (blocked on pressure).

Inlet Sizes Available : 25 to 200 NB
Outlet Sizes Available : 32 to 250 NB
Set Pressure : 0.5 Bar(g) to 3 bar(g)
Connections Available: Flanges ANSI Threaded for smaller sizes
Temperature Range : -30 to 50⁰ C
Applications : Refrigerated and cryogenic storage tanks, vapor recovery systems, LPG, LNG and LPG carriers

EE-PSV-V18-08

Designed with elastomer seats and seals for accurate and reliable low-pressure protection in petrochemical and chemical processes and storage tanks. If required, the fully modulating pilot can easily be adjusted to pop action.

Inlet Sizes Available : 50 to 200 NB
Outlet Sizes Available : 80 to 250 NB
Set Pressure : 0.5 Bar(g) to 5 bar(g)
Connections Available: Flanges ANSI
Temperature Range : -45 to 80⁰ C
Applications : Low pressure application where, accuracy, fast opening and premium seat tightness is required. & Low-pressure gas piping. Chemical storage tanks.

* Due to continuous improvement practice, the design / BOM / specification may change, please ask for updated drawing after ordering.

Best Pressure Safety Valve Manufacturer

Normative Reference

Spring Loaded Safety Valves

Pilot Operated Safety Valves

Steam & Power Safety Valves

Low Pressure Relief Valves