Watson McDaniel

Our History

For over 140 years, Watson McDaniel has been manufacturing a wide range of steam specialty and fluid products for the industrial marketplace. These time-tested products have made the operation of steam, compressed air, heat transfer and fluid systems substantially more effective and efficient.

Higher Standards

In 1995, Watson McDaniel received its ISO 9001 Quality Certification as industry recognition of our continued commitment to world class manufacturing, assembly and quality control procedures. This level of quality certification assures our customers unequaled dependability of our products. Our manufacturing facilities, with over fifty computer numerical controlled (CNC) machining centers, is considered the most modern in the industry.

Global Market

Watson McDaniel serves the global marketplace with a network of Manufacturers, Representatives, Distributors, Manufacturing Plants and Sales Offices located throughout the world. In 1997, a Manufacturing Plant and Sales Office was opened in Shanghai, China to fulfill the growing demands of steam specialty products in the Far East. The success of this operation has allowed us to quickly deliver products with competitive prices to our customers throughout this region.

How We Operate

The structure of our operation affords us the ability to give highly personalized attention to each and every customer. We continually strive to provide ultimate customer service and product reliability while responding immediately to our customers' requests and detailed needs. Watson McDaniel welcomes the opportunity to work with your company so that we may help to make all of your steam system and fluid applications the best that they can be.


Watson McDaniel HD series pressure regulating main valve. 150# Flanged 1" HD-14-F150, 1-1/2" HD-16-F150, 2" HD-17-F150, 2-1/2" HD-18-F150, 3" HD-19-F150, 4" HD-20-F150, 6" HD-22-F150. 300# Flanged 1" HD-14-F300, 1-1/2" HD-16-F300, 2" HD-17-F300, 2-1/2" HD-18-F300, 3" HD-19-F300, 4" HD-20-F300, 6" HD-22-F300.

Watson McDaniel HD Series Main Valve

Regular price $712.00
Watson McDaniel HD-LP Low Pressure Regulator Main Valve. 1/2" HD-12-N-LP, 3/4" HD-13-N-LP, 1" HD-14-N-LP, HD-14-F150-LP, HD-14-F300-LP, 1-1/4" HD-15-N-LP, 1-1/2" HD-16-N-LP, HD-16-F150-LP, HD-16-F300-LP, 2" HD-17-N-LP, HD-17-F150-LP, HD-17-F300-LP, 2-1/2" HD-18-F150-LP, HD-18-F300-LP, 3" HD-19-F150-LP, HD-19-F300-LP, 4" HD-20-F150-LP, HD-20-F300-LP, 6" HD-22-F150-LP, HD-22-F300-LP.

Watson McDaniel HD-LP Series Low Pressure Main Valve

Regular price $747.00
Watson McDaniel PP series pressure regulating pilot. PP-Y, 3-25 PSIG yellow spring. PP-B, 20-100 PSIG blue spring. PP-R, 80-200 PSIG red spring.

Watson McDaniel PP Pressure Reducing Pilot Operator

Regular price $530.00
Watson McDaniel PP5 Pressure Pilot Valve. PP5-Y, PP5-B

Watson McDaniel PP-5 Pressure Reducing Pilot Operator

Regular price $730.00
Watson McDaniel PBP Back Pressure Regulating PIlot. PBP-Y 3 - 25 PSIG range (yellow spring), PBP-B 20 - 100 PSIG range (blue spring), PBP-R 80 - 200 PSIG (red spring).

Watson McDaniel PBP Back Pressure Regulating Pilot Operator

Regular price $635.00
Watson McDaniel PS Series Solenoid Pilot. PS1, 15 - 180 PSIG range, PS2, 180 - 250 PSIG range, PS1-LP, 0 - 20 PSIG range. NEMA 4 enclosure, 110-120 VAC supply power (standard), normally closed operation (standard).

Watson McDaniel PS Solenoid Pilot Operator

Regular price $903.00
Watson McDaniel PA Pressure Air Pilot. PA-1, PA-4, PA-6.

Watson McDaniel PA Pressure Reducing Air Pilot Operator

Regular price $521.00
Watson McDaniel PT Temperature Pilot. 8 foot capillary, PT-12-8, PT-14-8, PT-29-8, PT-30-8, PT-31-8, PT-32-8. 15 feet capillary, PT-12-15, PT-14-15, PT-29-15, PT-30-15, PT-31-15, PT-32-15.

Watson McDaniel PT Temperature Pilot Operator

Regular price $1,399.00
Watson McDaniel PTU Temperature Pilot With Union. 8 ft. capillary PTU-12-8, PTU-14-8, PTU-29-8, PTU-30-8, PTU-31-8, PTU-32-8. 15 ft. capillary PTU-12-15, PTU-14-15, PTU-29-15, PTU-30-15, PTU-31-15, PTU-32-15.

Watson McDaniel PTU Temperature Pilot Operator

Regular price $1,232.00
Watson McDaniel PTRP Temperature Pilot. PTRP-940180S15, PTRP-940208S15, PTRP-940308S15, PTRP-0408S15, PTRP-940508S15, PTRP-940608S15, PTRP-940708S15, PTRP-940908S15, PTRP-941008S15, PTRP-941108S15, PTRP-941208S15, PTRP-941308S15, PTRP-941408S15.

Watson McDaniel PTRP-94 Temperature Pilot

Regular price $1,334.00
Watson McDaniel PTRP-LP-94 low pressure steam temperature pilot. PTRP-LP-940108S15, PTRP-LP-940208S15, PTRP-LP-940308S15, PTRP-LP-940408S15, PTRP-LP-940508S15, PTRP-LP-940608S15, PTRP-LP-940708S15, PTRP-LP-940908S15, PTRP-LP-941008S15, PTRP-LP-941108S15, PTRP-LP-941208S15, PTRP-LP-941308S15, PTRP-LP-941408S15.

Watson McDaniel PTRP-LP-94 Low Pressure Steam Temperature Pilot

Regular price $1,400.00
Watson McDaniel HSP-SS-14-F150, 1" 150# flanged stainless steel pressure reducing valve.

Watson McDaniel 1" HSP-SS 150# Stainless Steel Steam Regulator

Regular price $12,318.00
Watson McDaniel HSP-SS-14-F300, 1" 300# flanged stainless steel steam pressure regulating valve.

Watson McDaniel 1" HSP-SS 300# Stainless Steel Steam Regulator

Regular price $12,419.00
Watson McDaniel HSP-SS-16-F150, 1-1/2" stainless steel steam pressure reducing valve

Watson McDaniel 1-1/2" HSP-SS 150# Stainless Steel Steam Regulator

Regular price $16,129.00
Watson McDaniel HSP-SS-17-F150, 2" 150# flanged stainless steel steam pressure reducing valve.

Watson McDaniel 2" HSP-SS 150# Stainless Steel Steam Regulator

Regular price $17,137.00
Watson McDaniel HSP-SS-19-F150, 3" stainless steel 150# flanged steam pressure reducing valve.

Watson McDaniel 3" HSP-SS 150# Stainless Steel Steam Regulator

Regular price $23,563.00
Watson McDaniel O series direct operated pressure regulating valve. 3/8"  O-11-N-13-B, O-11-N-14-B, O-11-N-09-B, O-11-N-10-B. 1/2" O-12-N-13-B, O-12-N-12-B, O-12-N-09-B, O-12-N-10-B. 3/4" O-12-N-13-B, O-12-N-14-B, O-12-N-09-B, O-12-N-10-B. 1" O-14-N-0007-B, O-14-N-0008-B, O-14-N-0009-B, O-14-N-0010-B. 1-1/4" O-15-N-0007-B, O-15-N-0008-B, O-15-N-0009-B, O-15-N-0010-B. 1-1/2" O-16-N-0007-B, O-16-N-0008-B, O-16-N-0009-B, O-16-N-0010-B. 2" O-17-N-0007-B, O-17-N-0008-B, O-17-N-0009-B, O-17-N-0010-B.

Watson McDaniel O Series Direct-Operated Steam Pressure Regulator

Regular price $319.00
Watson McDaniel OSS Series Stainless Steel Direct Operated Pressure Regulating Valve. 1/2" OSS-12-N-13-S, OSS-12-N-14-S, OSS-12-N-09-S, OSS-12-N-10-S. 3/4" OSS-13-N-13-S, OSS-13-N-14-S, OSS-13-N-09-S, OSS-13-N-10-S. 1" OSS-14-N-0007-S, OSS-14-N-0008-S, OSS-14-N-0009-S, OSS-14-N-0010-S. 1-1/4" OSS-15-N-0007-S, OSS-15-N-0008-S, OSS-15-N-0009-S, OSS-15-N-0010-S.

Watson McDaniel OSS Series Stainless Steel Direct-Operated Steam Pressure Regulator

Regular price $1,079.00
Watson McDaniel 455 Series Pressure Regulating Valve. NPT 1/2" 455-12-N-X, 3/4" 455-13-N-X, 1" 455-14-N-X, 1-1/4" 455-15-N-X, 1-1/2" 455-16-N-X, 2" 455-17-N-X. 125# Flanged 2" 455-17-F125-X, 2-1/2" 455-18-F125-X, 3" 455-19-F125-X, 4" 455-20-F125-X. 250# Flanged 2" 455-17-F250-X, 2-1/2" 455-18-F250-X, 3" 455-19-F250-X, 4" 455-20-F250-X.

Watson McDaniel 455 Series Steam Pressure Regulating Valve

Regular price $1,213.00
Watson McDaniel 1/2" 403 series direct operated steam pressure regulating valve with internal sensing line.

Watson McDaniel 1/2" 403 Series Internal Direct Operated Steam Regulator

Regular price $1,339.00