Download
Key Features
Hot-Forged Brass Rough-In Body
The hot-forged solid brass valve body provides reliable strength, pressure resistance and long-term durability.
Two-Stage Installation System
The rough-in valve can be installed and pressure-tested first, while the cartridge and finished trim are protected until the final installation stage.
Built-In Pressure Test Cap
The included test cap allows the piping system to be flushed and pressure-tested before the cartridge and finished trim are installed.
Integrated Check Valves & Service Stops
Built-in check valves help prevent reverse flow, while the integrated service stops allow the hot and cold water supplies to be shut off directly at the valve for easier inspection and maintenance.
Flexible Rough-In Installation
Standard 1/2" NPT male connections and a 3''-4" (55–76 mm) installation-depth range support common North American plumbing applications.
Yizhan Pressure-Balance Cartridge
The Yizhan pressure-balance cartridge helps maintain a stable shower temperature when the hot or cold water supply pressure changes.
Product Description
The Aquavit PBV81101 is a one-outlet pressure-balancing rough-in valve designed for concealed shower installations. Its solid brass valve body provides a durable waterway, while the pressure-balancing design helps maintain a stable shower temperature when hot or cold supply pressure changes.
The universal rough-in housing allows the valve to be installed and pressure-tested before the compatible finished trim is selected.
Product Features
- Solid Brass Valve Body: Provides a durable, corrosion-resistant waterway for reliable concealed installation.
- Pressure-Balancing Control: Helps maintain a stable shower temperature when hot or cold supply pressure changes.
- One-Outlet Configuration: Controls one shower outlet for a straightforward single-function shower installation.
- Universal Rough-In Design: Allows the concealed valve to be installed before the compatible trim design and finish are selected.
- Pressure Test Cap Included: Allows the plumbing system to be pressure-tested before the finished trim is installed.
- 1/2 in. MNPT Connections: Four male threaded ports support standard hot, cold and outlet plumbing connections.
- Protective Rough-In Housing: Helps protect internal valve components during wall construction and finishing.
- Integrated Mounting Points: Provide stable positioning and easier alignment inside the wall.
Product Details
- Product type: Pressure-balancing rough-in valve
- Valve series: PBV8
- Number of outlets: 1
- Valve body material: Solid brass
- Control type: Pressure-balancing
- Rough-in design: Universal
- Pressure test cap: Included
- Connections: Four 1/2 in. MNPT ports
- Overall width: 137 mm / 5 3/8 in.
- Overall height: 104 mm / 4 1/8 in.
- Overall depth: 91 mm / 3 9/16 in.
- Mounting width: 102 mm / 4 in.
- Mounting height: 99 mm / 3 15/16 in.
- Installation: Concealed wall-mounted
Why Aquavit for Shower System Programs ?
OEM/ODM Manufacturing
Flexible OEM/ODM support for your brand projects.
Custom Finishes
Multiple finish options to match your market needs.
Inspection Support
Quality control and inspection support for consistent supply.
Technical Documentation
Complete technical files to support your project development.
Working on a Project? Let's Build It Together.
Competitive pricing and expert support for basin faucet projects.
Inquire for Project/OEMFrequently Asked Questions
1. How do the different PBV8 valve configurations operate?
All PBV8 models use a lift-and-turn main control. Lift the handle to turn the water on and adjust the flow, then rotate it to control the temperature.
- 1-outlet model: Operates one shower outlet without a diverter.
- 2-outlet model: Uses a rotary ceramic diverter to select between two outlets.
- 3-outlet model: Uses a rotary ceramic diverter to select among three outlets.
2. Can the PBV8 rough-in valve be installed before the trim is selected?
Yes. The PBV8 rough-in valve has no decorative finish and can be installed during the early construction stage. The cartridge, trim design and finish can be selected and installed later.
3. Can the piping be pressure-tested before installing the cartridge and trim?
Yes. Every PBV8 rough-in valve includes a pressure-test cap, allowing the piping system to be flushed and pressure-tested before the cartridge and decorative trim are installed.
4. What are the connection sizes and rough-in body dimensions?
All PBV8 models use standard 1/2" NPT male connections.
- PBV81101 – 1 outlet: 137 × 104 × 91 mm; four 1/2" NPT connections
- PBV82201 – 2 outlets: 137 × 164 × 91 mm; four 1/2" NPT connections
- PBV82301 – 3 outlets: 137 × 164 × 91 mm; five 1/2" NPT connections
Always refer to the model-specific drawing before preparing the wall opening and pipework.
5. What is included with a complete PBV8 shower valve and trim set?
A complete PBV8 set includes the appropriate rough-in valve, pressure-balance cartridge, ceramic diverter cartridge where applicable, trim plate and control handles.
The included components vary by outlet configuration and trim design. Please check the individual product specifications before ordering.
6. Do PBV8 valves include check valves and service stops?
Yes. Integrated check valves help prevent reverse flow, while the built-in service stops allow the hot and cold supplies to be shut off directly at the valve for easier inspection and maintenance.
7. Can the rough-in valve and finished trim be ordered separately?
Yes. PBV8 rough-in valves and compatible trim-and-cartridge kits can be ordered separately for phased project installation, replacement or inventory planning. Complete sets are also available and remain the preferred option for most customers.
8. Can Aquavit provide a working display solution for the PBV8 series?
Yes. Aquavit can provide a simplified operational display solution for showrooms and dealer displays. It does not require wall cutting or installation of a complete shower system, while still allowing customers to operate the controls and understand the different valve functions.
9. What if the PBV8 rough-in valve is installed too deep?
Extension kits are available if the PBV8 rough-in valve is installed deeper than the recommended range. Please provide the valve model and actual installation depth to Aquavit’s sales team so we can confirm the correct extension kit.
Explore Concealed Shower Solutions
Pressure-Balance Shower Systems
View Collection
Shower Components
Explore More
Shower Valve Technologies
Learn About Our Valve SystemsRequest Product Information
Interested in this product for distribution, OEM or a project? Share your requirements and our team will assist with pricing, availability, technical documents and customization options.