莱斯（LESER）于1818年成立,是一家拥有约200年历史、100%专注安全阀的德国公司，总部在德国汉堡。

作为全球安全阀市场领导者、欧洲最大的安全阀制造商，LESER莱斯一直致力于为客户提供高品质的安全阀产品和服务。LESER莱斯为所有工业应用提供符合PED和ASME VIII标准要求的弹簧载荷式和先导式安全阀，并为特殊应用提供完整的解决方案。LESER莱斯安全阀被众多国内外知名企业选用，广泛应用于化工、石化、工业气体、油气生产、装备制造以及食品药品等众多行业。
 
LESER莱斯进入中国市场已经超过25年，而且还在不断加大在中国的投资。2013年成立全资子公司-LESER莱斯中国, 总部在天津,并在北京、上海设办事处，目前拥有60多名具备高水平安全阀专业知识的员工，可以快速地为您提供专家级咨询和服务。
 
为了更好地服务中国客户，并把德国莱斯安全阀先进的设计理念和成套质量管理体系带入中国,2016年LESER莱斯在中国天津投资建立现代化生产基地。

LESER公司具有最详尽的信息和最先进的生产技术，可精确地生产最优质的安全阀。 

LESER安全阀由LESER在德国恩韦施泰特设立的一家工厂加工，该工厂是欧洲最大的安全阀加工基地，年均生产安全阀130000个。大多数情况下，该工厂的制造和装配均是通过自动化的生产线完成的。通过此项优化操作模式，确保了我们的产品达到一贯的高质量标准，无论是标准部件还是专门设计的部件，均可满足您的需求。

LESER不断投资于新的生产工艺和技术。以下示例显示了我们为客户提供的一些好处。 

通过应用现代化加工技术，实现了高效率、高质量的生产。例如，使用五轴联动加工中心 制备阀体。这种方法不仅可节省时间，还可对阀座进行优化配置，这是保证阀座气密性的前提。

大多数情况下，制造LESER安全阀的原材料和零部件可从存货中提取。也就是说，交货既快捷又可靠。

通过精密加工，保证了LESER安全阀的工作模式安全又可靠。凭借特殊的研磨工艺，LESET的表面粗糙度Ra小于1微米。这又为保证阀门优质的气密性和LESER的质量奠定了基础。

每个经装配和调整的阀门都要经过受过训练的技术人员进行反复检查。通过这种方式，确保了所有出厂的安全阀均能100%的满足客户需求。

LESER生产拥有最高水平的灵活性和质量，交货时间短，以最佳的服务水平满足客户的最高要求。

安全阀保护客户的产品和设备，以防止对人们和环境造成损害。安全阀是安全环节中的最后一环，必须在需要的时候发挥作用。LESER声明对此会予以保证。为此，制定了质量管理体系（QMS），以跟进产品加工的各个阶段。 质量管理体系通过以下方式得到保证：
 
- EN ISO 9001
- 压力设备指令97/23/EG（PED)
- ASME VIII
- AQSIQ
- 及其他标准 

从新产品的开发阶段，到以环保方式进行处理，均贯彻该质量管理体系。LESER的所有员工都致力于确保符合所有标准，并在工作场所严格执行。该体系应用于全球，包括我方子公司、销售伙伴及服务伙伴。

With more than 800 employees, LESER is the largest manufacturer of safety valves in Europe and a leader in its market worldwide.  

LESER safety valves are used by leading companies in industries such as chemical, petrochemical, industrial gases, oil and gas production, and machine building, as well as the food and pharmaceutical industry.

LESER offers spring-loaded and pilot-operated safety valves for all industrial applications according to PED and ASME VIII as well as application-based solutions for special requirements.

LESER safety valves are developed for the international market at our headquarters in Hamburg / Germany and manufactured at our modern factory in Hohenwestedt / Germany. In addition, LESER India produces safety valves for the local market.

Eight subsidiaries in Europe, America, the Middle East, and Asia, as well as authorized and trained representatives in over 80 countries guarantee competent consulting and quick, reliable delivery.

LESER has the detailed knowledge and most modern technology for precisely producing the highest quality safety valves. 

LESER safety valves are manufactured at our factory in Hohenwestedt in Germany, which is Europe's biggest manufacturing site for safety valves with an annual capacity of 130.000 valves. Here the production, as well as assembly, is done in most cases on automated production lines. Through this optimized operation we guarantee the consistent, high-quality standard of our products, regardless if it’s a standard part or a part specially designed to meet your needs.

LESER invests continually in new processes and technologies. The following examples show some of the customer benefits.

Modern manufacturing technology allows efficient and high-quality production. For example, bodies are machined on five-axis machining centers. In this way time can be saved and the seat is optimally fitted - the prerequisite for seat tightness.

Raw materials and components for LESER safety valves can be taken from stock in most cases. This means quick and reliable delivery.

Precision manufacturing ensures that LESER safety valves work in a stable and reliable way. With a special lapping process, LESER achieves a surface roughness of Ra < 1µm. This is another cornerstone for our excellent valve tightness and LESER quality.

Every assembled and adjusted valve is checked one more time by a trained technician. In this way we ensure that only safety valves that meet 100% of our customer’s requirements leave the factory.

LESER production stands for the highest level of flexibility and quality with short delivery times to best-serve or customers.

Safety valves protect our customers’ products and plants and therewith prevent injury or damage to people and the environment. They are the last link in the safety chain and must function when the situation requires them to. LESER claims that we guarantee this protection. For this reason we have a Quality Management System (QMS) installed that accompanies all phases of product creation. The QMS is certified according to
 
- EN ISO 9001
- Pressure Equipment Directive (PED) 97/23/EC resp. 2014/68/EU and EN ISO 4126-1
- ASME VIII
- AQSIQ
- and other standards.

It begins in the development phase of a new product and ends with its environmentally correct disposal. All LESER employees work to ensure that standards are met and enforced in their workplaces. This applies worldwide, also to our subsidiaries and the sales and service partners.