溢流阀HTRDDA

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名称：

溢流阀

型号：

HTRDDA

原理图：

流量：

95L/min

压力：

350bar

产品描述：

一种螺纹插装式、直动式、座阀式、常闭式溢流阀。它通常用来保护液压元件免受压力瞬变的影响。当进口（1）处的压力达到阀门设定值时，阀门开启，使油液溢流到通口(2) ，有效降低压力上升幅度。具有创新性结构设计的导流板能最大程度地减小压力上升速率，而座阀的设计则保证了极大的稳定性。该阀能够快速响应液压回路的负载变化，内部泄漏量低，滞后量小。 A screw-in, cartridge style, direct acting, poppet type, normally closed hydraulic relief valve. It’s typically used to protect hydraulic components from pressure transients. When the pressure at the Inlet (1) reaches the valve setting, the valve starts to open to tank (2) throttling flow to minimize the pressure rise.The innovative geometry of the deflector provides in fact a very low rise rate,and the poppet design guarantees great stability. The cartridge offers quick response to load changes in hydraulic circuits requiring low internal leakage as well as limited hysteresis.

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产品优势

所有外表面均为镀锌防腐蚀处理，所有部件均采用高强度钢材制造。锥阀芯经过热处理硬

化和研磨，保证最小的磨损，延长使用寿命。

前挡块防止弹簧塑性变形。

调节螺杆不会从阀体拧出。

弹簧最大工作压力为350 bar（5000psi）。

通口2 上的背压以1：1 的比例直接施加到阀芯上。

公制插孔。

注：标准密封丁腈橡胶（ BUNA-N ）

All external surfaces are zinc plated and corrosion-proof.

All valve parts are made of high strength steel. Poppet is hardened and ground to

guarantee minimal wear and to extend service life.

Positive stop prevents springs from going solid.

Adjustment screw cannot be backed out of the valve.

Optional spring ranges to 315 bar（4500psi） .

Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.

Metric cavity.

Note: Standard sealing NBR (BUNA-N)

详细参数

工作压力Pressure rating	350bar
设置压力 Setting pressure	查看订货选型表
最大流量 Maximum flow	95L/min
最大内泄漏量 Maximum internal leakage	0.7 cc /min
外露零件表面处理要求External component treatment	Zn/Fe - standard Zn/Ni
安装方向 Orientation	无限制 No restrictions
重量 Weight	0.17kg
适用油温范围 Oil Temperature Range	-30°C to 110°C
适用工作介质 Fluids	矿物油或具有润滑性的合成油液 Mineral - based orsynthetics with lubricating properties
工作介质粘度范围Viscosities	7,4 to 420 cSt
测试液压油型号 Oil testing condition	ISO VG 46 cSt
过滤要求 Filtration	20/18/15 ISO 4406 (maximum filtration admitted)
安装力矩 Installation torque	41-47 Nm（Hex.22）
调节螺栓内六角尺寸Adjustment Screw Internal Hex Size	4mm
设定压力建压流量Pressure settings established	15L/min
复位压力Reseat pressure	开启压力的90% nominal 90% of crack pressure
额定响应时间 Response Time-Typical	2ms

特性曲线

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订货编号

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