ARO 66610X Diaphragm Codes 4 and 6: Check the Assembly and Kit

On the ARO 66610X-X-C 1-inch metallic pump family, diaphragm codes 4 and 6 identify different assemblies. 代码4是PTFE/Santoprene;代码6是复合PTFE。 因此,对“PTFE隔膜”的要求会留下一个重要的采购问题未解答。 在发出订单之前,请将完整的泵配置与适用的零件清单进行匹配。

This guide explains a specific identification check, not a conversion or installation procedure. Its scope is the configurations covered by the ARO 66610X-X-C operator’s manual cited below. Do not extend these part numbers to every ARO pump beginning with 6661.

Read the code position, not just the character

The three material positions in the final group identify the seat, ball and diaphragm, 按照这种顺序,它们的意义取决于它们的位置。 在引用的手册中,6在球位置表示丙烯酸,而6在隔膜位置表示复合 PTFE。

When requesting a part, retain the entire nameplate code, including separators and the final suffix. If the last material group ends in 4, check the code-4 diaphragm assembly. If it ends in 6, check the code-6 assembly and its associated notes. Do not interpret an isolated “6” or a shortened warehouse description as a complete specification.

代码 4: 识别 PTFE 隔膜及其备份

对于code-4配置,制造商的流体截面零件表确定 93459-4 as the PTFE diaphragm and 92973-B as the Santoprene backup diaphragm. These are separate references within the assembly.

仅列出 PTFE 零件的采购行并不会告诉供应商是否还需要备用隔膜。 明确说明预期范围:单个隔膜、两种隔膜类型或已确认的流体截面服务套件。 记录每个零件编号的数量,而不是依赖于“一套 ” , 这可能会有不同的解释。

代码 6: 区分隔膜 48490056 和转换套件 48495964

对于复合 PTFE 配置,手册列出了光圈 48490056. 它还显示 48495964 in the parts table, but the footnote is essential: this is a conversion kit, not a service kit. 所述目的是将标准泵转换为单件隔膜泵。

The conversion kit does not include balls, seats or the Y328-126 O-ring. Do not order it as a complete fluid-section overhaul package, and do not infer a different kit number by inserting a diaphragm code into a familiar numbering pattern. A table column heading does not replace its configuration-specific footnote.

The manual also gives configuration-specific connecting-rod and shim information for -XX6-C pumps and refers users to separate composite-diaphragm instructions. Those details are a reason to check the whole assembly. They are not a basis for declaring code 4 and code 6 directly interchangeable.

将更换和转换请求分开

对于类似的维修,目标是确定安装的部件并订购指定的更换部件。 对于拟议的材料或隔膜设计变更,问题更广泛:需要哪些完整配置和支持部件,它们是否适合该任务?

请勿将PTFE一词视为相同结构、配合、维修程序或操作限制的证明。 在审查变更时,请向制造商或供应商提供液体、浓度、操作和清洁温度以及相关的服务条件。

在由合格人员进行任何实际检查时,请按照适用的现场程序将泵隔离。 使用制造商的确切拆卸和组装说明;这里不含有扭矩设置或安装顺序。

Send an unambiguous ARO diaphragm enquiry

请附上清晰的名牌照片,并在请求中包括以下详细信息:

1. 完整模型: copy every character and suffix, plus the serial number when available.
2. 文件： identify the operator’s manual and revision used for the parts lookup.
3. 隔膜位置： state whether the complete material code ends in 4 or 6; do not send only “PTFE.”
4. Requested scope: list each verified part number and quantity, or ask for the exact contents of the proposed kit.
5. 安装状况： disclose known modifications or any mismatch between the nameplate and existing components.
6. Order decision: state whether you need a like-for-like replacement or a separately reviewed configuration change.

如果零件标识、标牌和手册不一致,请暂停订单,直到差异得到解决。 照片可以帮助识别,但仅凭外观并不能确认隔膜材料或兼容性。

常见的订购问题

是否代码4和代码6都是简单的PTFE隔膜?

两个描述都包括 PTFE,但手册中标识的装配体不同:代码 4 是 PTFE/Santoprene,代码 6 是复合 PTFE。 使用配置特定的零件清单,而不是将描述视为可互换的。

48495964 是否是一个完整的复合膜片维修套件?

否,Rev AT 手册将其定义为转换套件,而非服务套件,并且不包括球、座和 Y328-126 O 型圈。 对于现有复合隔膜泵的常规维修,请从其适用的零件清单中确定所需的更换零件。

本指南是否适用于所有 6661-series 泵?

否,该范围是所引用的 66610X-X-C 手册中所涵盖的 1-inch 金属配置。 其他 6661 系列有单独的手册和服务零件参考。

References and next checks

Technical source: ARO 66610X-X-C operator’s manual 81376642, Rev AT, revised September 25, 2026,页数 2, 4 以及 5这是从下面的链接中链接的手册 official ARO 1-inch PRO Series metallic pump page when checked on November 5, 2026. Use the current instructions applicable to the actual pump; the separate conversion instructions referenced by ARO must also be obtained before any conversion is considered.

更广泛的维修范围改为 ARO repair-kit contents and valve-seat checks and use the 技术资料库 to locate the relevant manual. Send WILLEE the full model and requested parts for identification and quotation. Catalogue references do not establish stock availability, delivery time or approval of a configuration change.