Y-pattern check valves in this collection include two Midland subfamilies: brass swing-check models with threaded or solder connections, and stainless spring-check models with female threaded connections. Materials, mechanisms, ratings, and sizes differ by subfamily; confirm the specific model requirements before ordering.
Shop by connection
Brass Y-pattern
All Y-pattern check valves
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3/8 in. Brass Y-Pattern Check Valve, Threaded (NPT) -
1/2 in. Brass Y-Pattern Check Valve, Solder (C x C) -
1/2 in. Brass Y-Pattern Check Valve, Threaded (NPT) -
3/4 in. Brass Y-Pattern Check Valve, Solder (C x C) -
3/4 in. Brass Y-Pattern Check Valve, Threaded (NPT) -
1 in. Brass Y-Pattern Check Valve, Solder (C x C) -
1 in. Brass Y-Pattern Check Valve, Threaded (NPT) -
1-1/4 in. Brass Y-Pattern Check Valve, Solder (C x C) -
1-1/4 in. Brass Y-Pattern Check Valve, Threaded (NPT) -
1-1/2 in. Brass Y-Pattern Check Valve, Solder (C x C) -
1-1/2 in. Brass Y-Pattern Check Valve, Threaded (NPT) -
2 in. Brass Y-Pattern Check Valve, Solder (C x C) -
2 in. Brass Y-Pattern Check Valve, Threaded (NPT) -
2-1/2 in. Brass Y-Pattern Check Valve, Threaded (NPT)
About Y-pattern check valves
This collection combines two Midland subfamilies that share the Y-pattern body form but use different mechanisms, materials, and ratings. The brass line uses a swing disc, while the stainless line uses a spring-return disc. Ratings must not be read across the two; confirm the specification for your exact model on its product page.
Two subfamilies
- Brass Y-pattern swing check — a swing disc in a brass wye body, with screwed (NPT) or solder (C×C) ends. Sizes 3/8 in. to 2-1/2 in. Midland lists model 940358B as containing lead.
- Stainless Y-spring check — a spring-actuated disc in a stainless wye body; Midland's product pages for models 949485 and 949488 list 316 stainless. Sizes 1/4 in. to 2 in. Confirm the connection and grade for a specific size with us.
Ratings
Neither subfamily has a single line-wide rating. Pressure and temperature ratings differ by subfamily and model; confirm them for your exact model on its product page, or ask us for the spec sheet.
Choosing
Choose first by mechanism and connection, then confirm the material, size, pressure, temperature, and media compatibility for the specific model. The brass line can be narrowed by threaded or solder connection; the stainless Y-spring models are in the full grid. Confirm suitability for the specific service with Apex and the manufacturer before ordering.
Frequently asked questions
What is a Y-pattern check valve?
Y-pattern describes the angled branch body form. In this collection, that form includes a brass swing-check subfamily and a stainless spring-check subfamily. Confirm installation and service requirements for the specific model.
Do you offer threaded and solder connections?
The brass Y-pattern line comes in screwed NPT and solder (C×C) ends — use the filters above. For the stainless Y-spring models, confirm the connection for the exact model on its product page.
What grade of stainless are the Y-spring valves?
Midland's product pages for models 949485 and 949488 list 316 stainless. Tell us the size and we'll confirm the grade with the manufacturer before you order.
Materials are as listed by Midland Industries; confirm the specification for your exact model on its product page.