1. 在安装之前，要确保管道末端经过铰孔，螺纹长度切割适中。往外吹气，清除管道内所有可能损坏阀门阀座的疏松氧化层和其它外来物质。
   Before installing, be sure pipe ends are reamed and threads are cut to size. Blow out lines to remove all loose scale and other foreign matter that can damage valve seat.
2. 在管道上安装调节阀，使其阀体上的箭头指向流体流向。
   Install regulator in the line with the arrow on the body pointing in the direction of flow.
3. 如图所示，从隔膜腔室连接DN6或DN10平衡管到距离减压管至少18英寸远的地方，但是，最好离调节阀的距离更远一点。
   Connect ¹/₄" or ³/₈" equalizer pipe as shown from the diaphragm chamber to a point in the reduced pressure line not less than 18", but preferably a greater distance from the regulator.

　　注：在蒸汽应用中，如果调节阀安装在管道的上方或安装在垂直管道上，则控制管道必须有一个回路，以形成水密封，防止蒸汽接触隔膜。
　　NOTE: When regulator is installed above the line or in a veritcal line on steam service, the control pipe must have a loop to form a water seal to prevent steam from contacting the diaphragm.

4. 在控制管线上安装一个针形阀。如果不稳定的压力导致调节阀波动，则这种波动通过对阀门节流将稳定下来。
   Install a needle valve in the control line. If uneven pressure should cause the regulator to pulsate, its action can be stabilized by throttling the valve.

　　注：在压力安全阀上，15英寸直径的腔室室标准配置，工厂设置是60psi，以保护腔室不会出现压力过大现象。应该在安全阀上连接一个排放管道，以将任何潜在的排放引导到进行处置的安装位置。
　　NOTE: 15" diameter chambers are standardly furnished with a pressure relief valve, factory set at 60psi to protect the chamber from excessive pressure. A drain line should be attached to the relief valve to channel any potential discharge to a safe place of disposal.

*应该安装蒸汽安全阀，为设备提供紧急保护。
*Steam safety valve should be installed to provide emergency protection of equipment.

注：如果在蒸汽应用场合，阀门安装在水平管道的上方或在垂直管道上，则必须配置平衡管以形成水密封回路。
注：如图所示。平衡管始终要安装到管线直流部分内。
Note: When valve is installed above a horizontal line or on a vertical line, on steam service, equalizer pipe must have a water seal loop.
*Note: Always connect equalizer pipe into a straight run of the line, as shown.

　　调节：如果隔膜位于管道上方，则从左向右旋转调节轴套以增加减压 - 相反，减少减压。
　　To Adjust: When diaphragm is above the line, turn adjusting collar from left to right to increase the reduced pressure - opposite to decrease reduced pressure.
　　如果隔膜位于管道的下方，则从右向左旋转调节轴套以增加减压 - 相反减少减压。
　　When diaphragm is below the line, turn adjusting collar from right to left to increase the reduced pressure - opposite to decrease the reduced pressure.
　　提供一条钢条用于旋转调节轴套。
　　A steel rod is provided to turn adjusting collar.

　　如果阀杆周围出现泄漏，则轻轻紧固填料螺母。如果轻微的螺母压力无法阻止泄漏，则对阀杆进行重新填料。不要过分紧固填料螺母以防粘合阀杆，否则将导致调节不稳定和阀杆过度磨损。
　　Tighten packing nut lightly if leaks occur around stem. Repack stem when light nut pressure cannot stop leak. Do not tighten packing nut enough to bind stem. This causes uneven regulation and excessive stem wear.
　　清洗：检查或更换磨损的阀门阀瓣，断开控制管道，用钝工具和锤打阀盖塞顶部，从阀体上旋下阀盖。提起整个顶部进行阀体清洗。
　　To Clean: Inspect or replace worn valve disc, disconnect control pipe and unscrew bonnet from valve body using blunt tool and hammer on bonnet lugs. Lift entire top work clear of body.

　　有限质量保证：美国瓦茨调节阀公司保证在正常使用状态下，每个产品在材料和工艺方面没有任何缺陷，保质期为从原始运输起壹年。如果在保质期内发现产品有这些缺陷，公司将根据自己的选择，决定免费更换或者维修有缺陷的产品。这将构成有缺陷产品的唯一的排外的补救措施，对于任何因此产生的事故或间接损失，包括由于本产品无法正常运转而产生的无限制，亏损，或维修成本，或更换其它损坏的财产的成本，其它由此产生的人工成本、延迟、破坏、疏忽，由外部物质产生的积垢，由于逆向水条件、化工产品或任何其它瓦茨公司无法控制的情况造成的损害，美国瓦茨公司都不承担任何责任。对于任何产品滥用、错用、误用或不正确安装，将不适用于本保证。本保证替代所有其它明示或暗示的保证，包括任何由于促销性或某种特殊目的的暗示保证。任何通过法律强加的暗示保证有效期均为一年。
　　Limited Warranty: Watts Regulator Company warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge. This shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no control. This warranty shall be invalidated by any abuse, misuse, misapplication or improper installation of the product. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Any implied warranties that are imposed by law are limited in duration to one year.
　　美国一些州不允许限制暗示保证的持续时间，一些州不允许排除或限制所伴随的损害。因此上述保证可能不适用于这些州。这个有限保证授予用户特别的法律权利，用户也可以拥有各州不同的其他权利。用户应该咨询所在州的法律，了解自身的权利。
　　Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to determine your rights.