RED-WHITE VALVE CORP. | SKU: 30077747 | MPN: RW-504 1/2

Brass Boiler Drain | RW-504 Series | 1/2" MNPT × Hose Thread | Brass Body | 125# CWP

Name: Brass Boiler Drain | RW-504 Series | 1/2" MNPT × Hose Thread | Brass Body | 125# CWP
Brand: RED-WHITE VALVE CORP.
SKU: 30077747
Price: 12.8 USD
Availability: InStock

$12.80

Size | Connection Type | Min Order Qty (MOQ)

Product variants

Durable Brass Construction — Made from ASTM B283 C37700 brass for excellent corrosion resistance and long service life.
NSF-Approved Sealing Components — Includes NBR 70SH seat gasket and PTFE bonnet gasket for secure, leak-free performance.
MNPT × Hose Thread — Standard threaded configuration; ½″ also accepts copper tube for solder joints.
Pressure Rated — 125# CWP and 180°F maximum temperature for reliable use in demanding conditions.
No-Kink Spout — Prevents hose tangling and ensures consistent, smooth water flow.

📄 Download Spec Sheet

Brass Boiler Drain | RW-504 Series | ½″ MNPT × Hose Thread | Brass Body | 125# CWP

Red-White Valve RW-504 Series brass boiler drains are engineered for dependable drainage and shutoff in residential and commercial water systems. Constructed from durable ASTM B283 C37700 brass, these valves provide excellent corrosion resistance and long-term performance. The MNPT × Hose Thread connection offers simple, secure installation for boilers, tanks, and plumbing systems, while the No-Kink Spout ensures smooth water flow and easy hose attachment.

Key Features & Benefits

Durable Brass Construction: Body, bonnet, and nut made from ASTM B283 C37700 brass for superior corrosion resistance and long service life.
NSF-Approved Gaskets: Features NBR 70SH seat gasket and PTFE bonnet gasket for secure, leak-free sealing.
Threaded Connection: MNPT × Hose Thread configuration (ASME B1.20.1-NPT); ½″ size also accepts copper tubing for solder joints.
Pressure & Temperature Rating: Rated 125# CWP and up to 180°F for consistent performance in demanding applications.
No-Kink Spout: Prevents hose bending and ensures uninterrupted flow during draining operations.

Applications

Boilers and hydronic systems
Residential and commercial plumbing systems
Water heaters, tanks, and irrigation setups

Dimension & Weight

Size	T	F	A [in]	C [in]	H [in]	B [in]	P [in]	D [in]	Wt. [lb]
½″	½–14 NPT	¾–11.5 NH	1.46	0.61	3.43	2.09	0.51	0.47	0.44
¾″	¾–14 NPT	¾–11.5 NH	1.46	0.62	3.44	2.09	0.51	0.47	0.46

Pressure & Temperature Ratings

Pressure Rating	Max Temperature
125# CWP	180°F

Material

#	Part	Material	Specification
1	Body	Brass	ASTM B283 C37700
2	Stem	Brass	ASTM B124 C37700
3	Seat Gasket	NBR 70SH	NSF Approved
4	Bonnet Gasket	PTFE	-
5	Bonnet	Brass	ASTM B283 C37700
6	Packing Ring	PTFE	-
7	Packing Nut	Brass	ASTM B124 C37700
8	Handwheel	Steel	-
9	Disc	Aluminum	-
10	Nut	Steel / Zn-Plated	ASTM A36

For complete technical details, refer to the Red-White Valve RW-504 specification sheet.