产品详情
查看大图

  • 产品名称：Trans Zero Blanketing Valves (RA, Y1, BV-1)

  • 产品型号：Trans Zero Blanketing Valves (RA, Y1, BV-1)
  • 产品厂商：其它品牌
  • 产品文档：
你添加了1件商品 查看购物车
简单介绍：
Trans Zero Blanketing Valves (RA, Y1, BV-1) 安德森格林伍德零点氮封阀是保护世界的***。安德森格林伍德拥有丰富的经验和产品来满足几乎所有的笼罩和**泄压装置的需求。此外，我们可以提供完整的氮封阀系统和**
详情介绍：
Trans Zero Blanketing Valves (RA, Y1, BV-1)
安德森格林伍德零点氮封阀是保护世界的***。安德森格林伍德拥有丰富的经验和产品来满足几乎所有的笼罩和**泄压装置的需求。此外，我们可以提供完整的氮封阀系统和**


Trans Zero Blanketing Valves (RA, Y1, BV-1)

  • Description
  • Specifications
  • Documentation
Anderson Greenwood Pressure Relief Valves, Tank Protection, Tank Blanketing Valves, Anderson Greenwood Trans Zero Blanketing Valves (RA, Y1, BV-1) 

Anderson Greenwood is a world leader in tank protection and blanketing. Anderson Greenwood has the experience and products to meet almost all blanketing and safety relief device needs. Furthermore, we can provide the Complete Blanketing and Safety Valve System including:
 

  • Pad and de-pad valves and regulators
  • Pressure/vacuum vents and low pressure pilot operated valves
  • Emergency vents and valves
  • Flame and detonation flame arresters
Because of the interactions between pad (blanketing) valves, de-pad (out breathing) valves, relief devices and flame arresters, each piece of equipment should be considered when specifying the blanketing system. Because of these interactions between components in the system, it makes sense to rely on one company to help specify and provide all of the products that make-up the complete pressure control system.

In fact, with many applications, it is possible to combine the functions of the de-pad valve and the pressure relief valves, thus minimizing the number of valves and tank connections. Moreover, Anderson Greenwood can provide pad, de-pad, flame arrestment and pressure/vacuum relief in a single tank penetration.

 

Features & Benefits:

  • Lower Installation Costs – Single unit system reduces labor and material costs
  • Simplicity of Setting Blanket Pressure – One unit to calibrate in lieu of conventional multi-unit systems
  • Reduced Maintenance Costs – Top entry provides access to all internal parts without removal from the line
  • Optimum Performance – Reduces supply gas pressure from 200 psig [13.8 barg] to 1/2" wc [1.2 mbarg] in one stage
  • Balanced Design – Accurately maintains setting regardless of pressure variations
  • Premium Tightness – O-ring seat and seals assure bubble-tight shut-off
Specifications

Connections:
Threaded (NPT) 1/2", 1", 2"
Flanged ANSI 150, 300, 600

Temperature Range: -20 to +300°F [-29 to +149°C]
Maximum Inlet Pressure: 200 psig [14 barg]
Blanket Pressure Range: 0.5" wc to 6 psig [12.7 mm wc to 0.4 barg]

RA Operation
For small flow requirements, the pilot can be used by itself as a direct spring tank blanketing valve. When used this way, it is designated a Type RA. The only difference in construction is the location of the sense and inlet ports. The sensed pressure acting against the spring force will determine how much, if any, the pilot is to open.

Y1 Operation
Upstream pressure enters the main body and acts upward against the main valve diaphragm. Due to a small unbalanced dome area, the effective area above the diaphragm is slightly larger than below. Shut-off will occur when the dome pressure is equal to the inlet pressure. The sleeve/diaphragm retainer assembly is lightly spring loaded to provide initial closing force when there is no pressure differential across the diaphragm.

The Type Y1 Pilot controls dome pressure in response to tank pressure. A reduction in dome pressure allows the sleeve to move upward off the main seat, permitting flow through the valve. The amount of lift depends on the pressure reduction in the dome. The greater this reduction, the greater the flow. When the downstream pressure is satisfied, the sensed pressure acting on the pilot sense plate will overcome the spring force to close the pilot, which in turn closes the valve. No system fluid is vented to the atmosphere.

BV-1 Operation
The diaphragm and sleeve are replaced by a piston in the main valve for more rugged construction. As with the Y1 Valve, the pilot controls dome pressure. A reduction in dome pressure allows the piston to move horizontally off the seat, permitting flow through the valve. Maximum flow is controlled by the cage orifices.
* 请输入您的名字，方便我们和您联系
* 请输入您的电话，方便客服及时解答您的问题
* 请输入您详情地址，方便详细提供当地的市场讯息