Parker H Series Pressure Relief Valve

Parker 减压阀 - Parker Pressure Relief Valves
Needle Valve, Proportional Relief Valve 6,000 PSI - H Series

Parker H series proportional pressure relief valves
针阀、比例溢流阀 6,000 PSI - H 系列 | #HPRV-S-4A-BN-K1

派克的高压泄压阀HPRV为高达 8,000 PSI (552 bar) 的过程仪表系统提供自动保护机制. 派克的 H 系列比例减压阀旨在为过程仪表系统提供自动保护机制。当上游压力超过阀门弹簧施加的关闭力时，下阀杆打开并允许流量通过阀门的出口 - 可以通过管道输送到安全的地方或排放到大气中。流量与上游压力的增加成比例地增加。这些阀门提供 14 种不同的开启（或“开启”）压力范围选择，从 10-25 到 4,975-6,000 PSI（0.7-1.7 到 343-414 bar）。无论系统背压如何，低摩擦阀杆密封件和平衡提升阀设计可确保准确和一致的开启压力。开启压力保持在其设定值的 3% 以内，并可通过外部螺母进行微调，由派克独特的 Tru-Loc? 机构固定到位。连接有 6 毫米和 1/4" 尺寸可供选择，可选择外螺纹或内螺纹 NPT、派克 CPI? 单套圈或派克 A-LOK? 双套圈压缩接头。所有 H 系列泄压阀均由 316 不锈钢制成。最大工作压力额定值和允许温度范围取决于特定型号。为了获得最大的应用灵活性，有多种 O 形圈密封材料可供选择，包括氟碳橡胶、丁腈橡胶、乙丙橡胶、高度氟化的氟碳橡胶和氯丁橡胶。

派克H 系列比例减压阀带有 CE 标志，并通过压力设备指令 (PED) 的最高 IV 级认证。

PARKER Needle Valve, Proportional Relief Valve 6,000 PSI - H Series

市场：

- 化工
- 石油和天然气
- 石化

特点/优势：
- 捕获的模制阀座设计具有防爆裂和抗碎屑的特性
- 颜色编码的弹簧和标签指示弹簧开裂范围
- 独特的 Tru-loc? 设施可防止意外调整
- 锁线功能可确保给定的压力设置
- 低摩擦阀杆密封设计可防止摩擦，从而提高开启压力和复位压力的准确性
- 平衡的提升阀设计无论系统背压如何，都能确保一致的开启压力
- 高压孔口尺寸：3.6 毫米（0.142 英寸） 低压孔口尺寸：5.2 毫米（0.203 英寸）
- 提供多端连接
- 低压安全阀压力设置可从外部调节。六种不同的弹簧范围提供更高的系统灵敏度和增强的性能

应用：
- 过程仪表系统
- 防滑板
- 储罐/容器

Parker H Series Pressure Relief Valve provides an automatic protection mechanism for process instrumentation systems. arker's H series proportional pressure relief valves are designed to provide an automatic protection mechanism for process instrumentation systems. When the upstream pressure exceeds the closing force exerted by the valve's spring, the lower stem opens and permits flow through the valve's outlet port - which can be ducted to a safe?place or vented to atmosphere. The flow rate increases proportionately to the increase in upstream pressure.

The valves offer a choice of 14 different ranges of opening (or ‘cracking') pressures, from 10-25 to 4,975-6,000 PSI (0.7-1.7 to 343-414 bar). A low friction stem seal and a balanced poppet design ensures accurate and consistent cracking pressure, regardless of system back pressure. Cracking pressure is maintained to within 3% of its setting, and can be finely adjusted by means of an external nut, secured in position by Parker's unique Tru-Loc? mechanism.

The connections are available in 6 mm and 1/4" sizes, and with choice of male or female NPT, Parker CPI? single ferrule or Parker A-LOK? double ferrule compression fittings.

All H series pressure relief valves are manufactured from 316 stainless steel. The maximum operating pressure rating and permissible temperature range depends on the particular model. For maximum applications flexibility, there is an extensive choice of O-ring seal materials, including fluorocarbon rubber, Buna-N, ethylene propylene rubber, highly fluorinated fluorocarbon rubber and neoprene rubber.

Parker H series proportional pressure relief valves are CE marked and certified to the highest Category-IV level of the Pressure Equipment Directive (PED).


Markets:

- Chemical
- Oil and Gas
- Petrochemical

Features/Benefits:
- Captured molded seat design is blow-out and chip resistant
- Color coded springs and labels indicate spring cracking range
- Unique Tru-loc? facility prevents accidental adjustment
- Lock wire feature secures a given pressure setting
- Low friction stem seal design prevents friction which increases accuracy of cracking pressure and reseat pressure
- Balanced poppet design ensures consistent cracking pressure regardless of system back pressure
- High Pressure Orifice sizes: 3.6 mm(0.142”) Low pressure Orifice sizes: 5.2mm (0.203”)
- Multiple end connections available
- Low pressure relief valve pressure settings are externally adjustable. Six different spring ranges provide greater system sensitivity and enhanced performance

Applications:
- Process Instrumentation systems
- Skid Panels
- Storage Tanks/Vessels

Technical Specifications

Needle Valve, Proportional Relief Valve 6,000 PSI - H Series 型号