Designed for natural refrigerants and industrial thermal management
Our comprehensive range of industrial valves is curated to deliver exceptional safety, precision, and long-term reliability. Through advanced engineering and the use of premium materials, these components ensure smooth operation and minimal leakage rates while remaining fully compliant with international standards. To assist with your specific project requirements, we offer expert engineering support.
Service valves
Our service valves provide reliable, small-diameter isolation solutions for heating and cooling systems. Designed for the secure attachment of devices such as pressure gauges, these valves offer versatile connection options to suit any system configuration.
HRS service valves
HRS valves featuring a lifting stem achieved by a threaded bush; available with multiple connection options.
HRSB service valves
HRSB valves with a lifting stem provided by a threaded bush and metal bellows for hermetic sealing; available with various connections.
HRSN needle valves
HRSN valves equipped with a pointed regulating cone. This design allows precise control of the medium flow.
Shut-off-valves
AWP shut-off valves stop line flow using a seated disc. Stem sealing is provided by either a threaded bush or metal bellows.
AVR shut-off-valves
AVR valves close the pipe by lowering the valve disc onto the valve seat. Stem sealing is achieved through a threaded bush for hermetic sealing.
AVB shut-off-valves
AVB valves close the pipe by lowering the valve disc onto the valve seat. Stem sealing combines a threaded bush and metal bellows to deliver full hermetic sealing for leak-tight performance.
AVR/AVB shut-off-valves with electric actuator
These valves close the pipe by lowering the valve disc onto the valve seat using an electric actuator. Stem sealing is provided by either a threaded bush or metal bellows.
Ball valves and butterfly valves
Ball and butterfly valves provide efficient flow control by utilizing a 90° rotation of the internal ball or disc in relation to the flow direction.
KV ball valves
KV ball valves feature a precision-bored sphere. This mechanism rotates 90° horizontally to facilitate rapid opening and closing of the pipeline.
AK butterfly valves
AK butterfly valves employ a streamlined disc plate. By rotating the disc through a quarter-turn (90°), these valves offer high-capacity flow regulation with a compact footprint.
KVplus ball valves
KVplus ball valves are specifically rated for high-pressure environments, supporting requirements up to PN 100.
Motorized valves
Actuated valves are valves using electric or pneumatic actuators to open and close the line.
KVE/KVP ball valves with electric or pneumatic actuators
These ball valves use a bored-through ball rotated horizontally by 90° to open or close the pipe. They deliver fast, reliable isolation and low pressure drop.
AKE/AKP butterfly valves with electric or pneumatic actuators
Butterfly valves use a disc rotated horizontally by 90° to control flow. They offer compact design, smooth operation, and efficient shut-off in large-diameter lines.
HRAR/HRAB regulating valves with electric actuator
These regulating valves control medium flow using a cone beneath the valve disc. The disc moves via an electric actuator. Stem sealing uses a threaded bush or metal bellows.
AVR/AVB shut-off valves with electric actuator
These valves close the pipe by lowering the valve disc onto the valve seat using an electric actuator. Stem sealing uses a threaded bush or metal bellows.
Regulating valves
Regulating valves utilize a specialized cone integrated into the valve disc to ensure precise medium flow control. The stem sealing is achieved via a durable threaded bush or a metal bellows assembly.
HRAR regulating valves
HRAR valves are engineered for accurate flow modulation using a disc-mounted cone. This model features a threaded bush.
HRAB regulating valves
HRAB valves combine the disc-mounted cone with a dual-sealing system. By utilizing both a threaded bush and metal bellows, these valves provide a fully hermetic seal.
HRAR/HRAB regulating valves with electric actuator
Our electrically actuated HRAB/HRAB valves offer automated flow management. These units integrate the cone design with an electric actuator, available with either threaded bush or metal bellows sealing options.
Check valves
Our range of non-return valves operates automatically via medium pressure, ensuring reliable flow control and system protection.
RVA stop check valves
Designed with medium-actuated discs for automatic opening, the RVA series features an integrated lifting stem. This allows for manual overrides to permanently close the valve when required.
RV check valves
RV check valves utilize medium-actuated discs for automatic opening. These valves provide instantaneous closure if flow is interrupted or reversed, preventing backflow.
RVAK stop check valves
In addition to a manual lifting stem for secure shut-off, the RVAK valves incorporate a cone on the underside of the valve disc to enable precise medium flow regulation.
RVZ check valves
RVZ valves fit securely between pipe flanges. Available with optional integrated damping and linear ball bearings.
Filters / strainers
Filter dryers and strainers protect refrigeration systems from moisture, dirt, acids, oil breakdown products, and sludge deposits. They support clean operation, stable performance, and extended equipment life.
SS strainers
SS strainers feature a replaceable stainless-steel mesh in various sizes. An optional magnetic filter captures fine metal particles for added system protection.
FT filter dryers
FT filter dryers use replaceable adsorption filters to remove moisture, dirt, acids, oil breakdown products, and sludge. They protect refrigeration and air-conditioning systems from internal contamination and corrosion.
3-way valves
Our 3-way valves are designed for seamless installation between pressure vessels or lines, accommodating two safety valves to ensure system redundancy. Available in standard or space-saving compact designs, these valves provide reliable switching for critical pressure systems.
WVR 3-way valves
The WVR series features a lifting stem design. The stem is secured with a threaded, screwed-in bush.
WVR AL 3-way valves
WVR AL valves offer a lightweight, compact solution. Manufactured from high-grade aluminum, these valves utilize a screwed-in bush for reliable stem sealing.
WVB 3-way valves
The WVB series is designed for applications requiring maximum leak protection. Featuring a lifting stem and metal bellows for hermetic seal.
Safety valves
Safety valves protect refrigeration system components from excess pressure. Alternative replacement valves for PARKER Herl safety valves are available with identical technical specifications and dimensions.
SVU safety overflow valves
SVU valves are spring-loaded safety valves that operate independently of back pressure.
SVA safety relief valves
SVA valves are spring-loaded safety valves that depend on back pressure.
Bursting discs and excess flow valves
Reverse-acting bursting discs and excess flow valves protect refrigeration systems from overpressure.
BS bursting discs
BS bursting discs are reverse-acting devices designed to relieve excess pressure and protect refrigeration systems from damage.
Excess flow valves
Excess flow valves are used alongside bursting discs to provide additional overpressure protection. They restrict flow in abnormal conditions, reducing risk and improving system safety.
Dual safety valves
Dual safety valves protect refrigeration systems from overpressure. This setup features a 3-way valves and two safety valves, allowing for inspection or replacement of one valve without downtime.
WVR-SVU dual safety – back pressure independent
Dual safety overflow valves consisting of one 3-way valve and two safety valves. These operate independently of back pressure.
WVR-SVA: dual safety – back pressure dependent
Dual safety relief valves for industrial refrigerant cycles. These systems are back-pressure dependent and built for heavy-duty industrial applications.
WVR AL SVA / SVU dual safety – compact aluminum
A lightweight, compact aluminum 3-way valve design. The safety valves are available in both back-pressure-dependent and independent configurations.
WVR SVA / SVU dual safety – chain drive
These models feature dual 3-way valves (on the inlet and outlet sides) connected by a chain drive to open and close synchronously. The safety valves available in both back pressure dependent and independent configurations.
Overflow valves
Overflow valves protect refrigeration systems and components from excess pressure. They support safe operation, stable performance, and long-term system reliability.
GPV gas-powered valves
GPV valves drain the oil collection container into the oil return circuit.
RVD constant pressure valves
RVD valves regulate and maintain the required minimum differential pressure.
RVR constant pressure valves
RVR valves maintain constant pressure and include an integrated check valve.
UVA overflow valves
UVA valves are back-pressure-dependent, spring-operated overflow valves. They are also suitable for oil circuit applications.
UVR / UVRK pressure regulating valves
These valves consider combine multiple control functions in a single valve body, supporting check valve and shut-off valve functions as well as precise pressure control in a compact system design.
Oil management valves
Our precision-engineered oil management valves are essential for regulating oil circulation within industrial refrigeration compressor systems. These components ensure temperature control, pressure regulation, and high-capacity filtration and draining.
UVU overflow valves
Spring-loaded overflow valves are designed to function independently of back pressure.
TR thermostatic 3-way valves
Regulate compressor circuits at constant oil temperatures.
SSO quick-closing valves
Specialised valves engineered for installations in oil drain pipelines.
ORVA oil-pressure regulating valves
Designed to maintain a stable differential oil pressure between the oil pump and oil separator.
OF oil filters
High-efficiency filtration to remove contaminants from the refrigeration circuit.
DOF double oil filters
High-efficiency filtration to remove contaminants from the refrigeration circuit. Dual-chamber design allowing for seamless filter element replacement without downtime.
Suction filters
Suction filters are essential components installed on the suction side of the refrigerant circulation. They provide critical protection for the compressor unit by capturing contaminants.
SF-AVR / SFR-AVR suction filter combinations
High-performance suction filters featuring integrated shut-off valves. Available with or without built-in check valve functionality.
SF / SFR series
Designed with optional integrated check valves.
SFCS series
The SFCS suction filter combines the capabilities of a filter, a check valve, and a shut-off valve into a single, compact unit.
Indicators
Our range of flow indicators and sight glasses enables precise, continuous visual monitoring of system liquid levels and flow rates.
SGL sight glasses
SGL sight glasses provide reliable, real-time visibility for monitoring fluid levels within your system, ensuring consistent operational oversight.
DA flow indicators
Flow indicators provide continuous visual monitoring of safety valves. If a safety valve is activated by the medium, this is clearly visible through the sight glass.